Abrégé

uvvwwuwu; a fault detection unit, which is connected to the bidirectional switch units and is configured to detect whether each bidirectional switch unit fails; and a control unit, which is connected to the voltage acquisition unit and the fault detection unit and is configured to control the closing or opening of the three switching devices according to a voltage input form, a connection mode and the detection result of the fault detection unit, so as to switch circuits and working modes, such that a charger is suitable for this application in multiple scenarios and across multiple standards.

Classes IPC  ?

• H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

A detection system for a high-voltage alternating-current and direct-current hybrid signal. The detection system comprises: a voltage transformer (1), which is provided on a train and is electrically connected to an alternating-current overhead catenary system (5) or a direct-current overhead catenary system (6) by means of a pantograph; an alternating-current module (2), which is connected to the voltage transformer (1) and is used for outputting a stepped-down alternating current from the voltage transformer (1); a direct-current module (3), which is connected to the voltage transformer (1) and is used for outputting a stepped-down direct current from the voltage transformer (1); and a control module (4), which is connected to both the alternating-current module (2) and the direct-current module (3) and is configured to receive voltage signals of the alternating-current module (2) and the direct-current module (3) respectively, so as to determine whether the voltage transformer (1) is connected to the alternating-current overhead catenary system (5) or the direct-current overhead catenary system (6).

Classes IPC  ?

• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
• B60M 3/04 - Dispositions pour la mise sous tension et la coupure des sections individuelles de la voie
• B60L 9/00 - Propulsion électrique par source d'énergie extérieure au véhicule

Abrégé

The present application discloses a control method and system for a Vienna rectifier. The control method is used for controlling a switching transistor of the Vienna rectifier when direct current is input into the Vienna rectifier. The control method comprises: establishing an equivalent circuit when the direct current is input to the Vienna rectifier; performing closed-loop control by means of an output voltage loop according to an output voltage reference value and an output voltage value of the equivalent circuit to obtain a first control result, performing closed-loop control by means of midpoint potential balancing loop according to an upper capacitor voltage value and a lower capacitor voltage value to obtain a second control result, and obtaining a first modulated wave and a second modulated wave according to the first control result and the second control result; and controlling a switching transistor of the equivalent circuit by means of driving signals according to the results of comparison of the first modulated wave and the second modulated wave with a first carrier wave and a second carrier wave.

Classes IPC  ?

• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 3/07 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

abbccaαβαββ.

Classes IPC  ?

• H02P 21/18 - Estimation de la position ou de la vitesse
• H02P 21/14 - Estimation ou adaptation des paramètres des machines, p. ex. flux, courant ou tension
• H02P 25/024 - Moteurs synchrones commandés par la fréquence d’alimentation

Abrégé

Disclosed in the present application are a method and apparatus for controlling a three-phase four-bridge-arm auxiliary converter. The control method comprises: a voltage collection step, involving: collecting a three-phase output voltage; a first compensation result acquisition step, involving: obtaining a positive-sequence component and a negative-sequence component of the three-phase output voltage by means of positive and negative synchronous rotation coordinate transformation and according to the three-phase output voltage, and performing closed-loop controlling on the positive-sequence component and the negative-sequence component, so as to obtain a positive-sequence component compensation result and a negative-sequence component compensation result; a second compensation result acquisition step, involving: obtaining a zero-sequence voltage component of the three-phase output voltage by means of a symmetrical component method and according to the three-phase output voltage, and performing feedback compensation on the zero-sequence voltage component, so as to obtain a zero-sequence component compensation result; and a three-phase output voltage balance step, involving: performing three-dimensional space rotation vector modulation according to the positive-sequence component compensation result, the negative-sequence component compensation result and the zero-sequence component compensation result, so as to obtain a control pulse, and applying the control pulse to a bridge arm of an inverter unit, so as to obtain a balanced three-phase output voltage.

Classes IPC  ?

• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle

Abrégé

The present invention relates to a parking brake unit and an electromechanical brake clamp. The parking brake unit comprises: a cylinder body assembly, a cavity having a hole being provided in the cylinder body assembly; an energy storage assembly located in the cavity and comprising: a disc spring cylinder body; a disc spring sleeve; a first disc spring assembly; a support member; a second disc spring assembly arranged between the support member and the cylinder body assembly; and a wedge-shaped member, wherein one end of the wedge-shaped member close to a bearing inclined surface thereof being connected to the disc spring sleeve, and the other end of the wedge-shaped member penetrating through the second disc spring assembly and connected to the support member; a thrust output control unit; and a locking assembly located between the disc spring cylinder body and the disc spring sleeve. The energy of the parking brake unit is generated by the elastic potential energy of the disc spring assemblies, and the energy storage efficiency is high.

Classes IPC  ?

• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique

Abrégé

Provided is a relief apparatus, comprising: a pawl assembly; a relief body (1) provided with an air inlet (102) and internally provided with a relief chamber (101); a hand relief wedge (2), the end of which provided with a through-hole (3) on its circumference being disposed in the relief chamber (101), the other end protruding from the relief body (1); the portion of the hand relief wedge (2) located in the relief chamber (101) is provided with a wedge-shaped working face (201); a first elastic member (4), disposed between the hand relief wedge (2) and the relief chamber (101); a sliding member (501), disposed in the through-hole (3); a position-limiting member (502), disposed on the inner wall of the relief body (1); a relief piston (6), disposed in the relief chamber (101) and connected to the hand relief wedge (2) to form an isolation chamber (7); the relief piston (6) is provided with a ventilation hole (601) having an aperture smaller than the air inlet (102); an isolation piston (8) externally having a conical surface, disposed in the isolation chamber (7); a second elastic member (9) disposed in the isolation chamber (7) and located between the isolation piston (8) and the hand relief wedge (2). Also provided is a parking brake cylinder comprising the relief apparatus.

Classes IPC  ?

• F16D 65/14 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée
• F16D 121/04 - Pression de fluide agissant sur un actionneur du type piston, p. ex. pour pression de liquide
• B61H 11/06 - Emploi ou aménagements des freins ou des appareils ralentisseurs non prévus ailleursCombinaisons d'appareils de genres ou de types différents de freins hydrostatiques, hydrodynamiques, ou aérodynamiques

Abrégé

A pneumatic brake cylinder and a brake clamp unit. The pneumatic brake cylinder comprises a cylinder body (1) and a front end assembly (104). The cylinder body (1) is internally provided with: a piston assembly (2); a piston sleeve (3) connected to the piston assembly (2); a lead screw (4) disposed in the piston sleeve (3), one end of the lead screw (4) being connected to the front end assembly (104); a release spring (5) disposed between the cylinder body (1) and the piston assembly (2); an adjusting spring (6), one end thereof being compression jointed to the piston assembly (2) and the other end being compression jointed to the lead screw (4); an adjusting nut (7) disposed on the outer side of the lead screw (4), one side of the adjusting screw (7) being provided with a first bevel gear (702) and the other side being provided with a thrust bearing (701) in contact with the piston sleeve (3); a bevel gear ring (8) sleeved on the lead screw (4) and matching the first bevel gear (702); a push ring (9) disposed on the piston sleeve (3); a force transmission tube (10) sleeved on the lead screw (4), one end of the force transmission tube (10) being in contact with the bevel gear ring (8) and the other end being connected to the piston assembly (2) by means of a gap identification spring (11) sleeved on the lead screw (4); a gap identification ring (12) sleeved on the force transmission tube (10) and slidably connected to the piston sleeve (3); and a buffer spring (13) sleeved on the force transmission tube (10), one end of the buffer spring (13) being compression jointed to the bevel gear ring (8) and the other end being compression jointed to the push ring (9). The pneumatic brake cylinder is short in gap adjustment time and high in efficiency.

Classes IPC  ?

• F16D 65/56 - Dispositifs de réglage mécaniques agissant automatiquement dans une direction pour le réglage d'un jeu excessif à filetage et écrou
• F16D 125/02 - Mécanismes à pression de fluide
• F16D 121/04 - Pression de fluide agissant sur un actionneur du type piston, p. ex. pour pression de liquide
• F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction

Abrégé

A parking braking method for a railway vehicle. The method comprises: charging compressed air into a parking cylinder, such that the parking cylinder is in an unlocked state, charging compressed air into a brake cylinder to apply service braking, and discharging the compressed air from the brake cylinder to relieve service braking; discharging the compressed air from the parking cylinder, such that the parking cylinder is in a locked state, and charging compressed air into the brake cylinder to apply parking braking; and charging compressed air into the parking cylinder, such that the parking cylinder is in the unlocked state, and discharging the compressed air from the brake cylinder to relieve parking braking. A parking cylinder for carrying out the method is also disclosed. The braking force can be flexibly adjusted according to a load of a vehicle.

Classes IPC  ?

• B61H 11/14 - Combinaisons de différents types de freins, p. ex. sabots de freins agissant sur la jante de la roue combinés avec des freins à disques

Abrégé

A pneumatic brake cylinder and a brake clamp unit. The pneumatic brake cylinder comprises: a cylinder head (1); a rear cover (2), connected to the cylinder head (1) and forming a sealed cavity with the cylinder head (1); a piston (3), provided in the sealed cavity; a pushing portion assembly (4), provided in the sealed cavity and slidably connected to the cylinder head (1); a lead screw (5), sleeved in the pushing portion assembly (4); an adjusting spring (6), of which one end is pressed on the piston (3) and the other end is pressed on the lead screw (5); a gap adjusting mechanism (7), provided between the pushing portion assembly (4) and the lead screw (5); and at least two amplification mechanisms (8), which are circumferentially and symmetrically arranged, each amplification mechanism (8) comprising: a bearing (801), which abuts against the piston (3); and a lever (802), of which one end is connected to the bearing (801) by means of a shaft and the other end is connected to the cylinder head (1) by means of a shaft, and the middle part of the lever (802) being connected to the pushing portion assembly (4) by means of a shaft. The brake cylinder can save the internal space of the brake cylinder and reduce the volume of the brake cylinder on the premise of the same braking leverage.

Classes IPC  ?

• F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction
• F16D 65/00 - Éléments constitutifs ou détails des freins
• F16D 121/04 - Pression de fluide agissant sur un actionneur du type piston, p. ex. pour pression de liquide

Abrégé

A parking brake cylinder and a brake caliper unit. The parking brake cylinder comprises a brake cylinder cavity formed by a brake cylinder body (2) and an intermediate body (1), a brake piston (3) being arranged inside the brake cylinder cavity; a parking cylinder cavity formed by a parking cylinder body (4) and the intermediate body (1), and at least two sealed chambers (401) being provided in the parking cylinder cavity; a force transfer assembly placed in the parking cylinder cavity, the force transfer assembly comprising a parking lead screw (5), a parking nut (6) arranged outside the parking lead screw (5) in a sleeved manner, and a ratchet wheel (7) arranged at the other end of the parking lead screw (5) in a sleeved manner; at least two force transfer rods (8), one end of each of which is connected to the brake piston (3), and the other end of each of which passes through the intermediate body (1) to be connected to the parking nut (6); compression springs (140) arranged on the force transfer rods (8) in a sleeved manner and between the intermediate body (1) and the parking nut (6); a plurality of parking pistons (9) arranged corresponding to the sealed chambers (401) and circumferentially and symmetrically mounted on the parking nut (6); and a relieving device (10) matching the ratchet wheel (7).

Classes IPC  ?

• F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction
• B61H 11/06 - Emploi ou aménagements des freins ou des appareils ralentisseurs non prévus ailleursCombinaisons d'appareils de genres ou de types différents de freins hydrostatiques, hydrodynamiques, ou aérodynamiques
• F16D 65/14 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée

Abrégé

A bidirectional windage resistance brake apparatus including a base, a first cylinder, a second cylinder, a first windage resistance plate and a second windage resistance plate, a tail of the first windage resistance plate is hinged with the base; the first windage resistance plate includes a first supporting rod, one end of which is hinged to a middle portion of the first windage resistance plate, and another end is connected with the first cylinder; a tail of the second windage resistance plate is hinged with the base; the second windage resistance plate includes a second supporting rod, one end of which is hinged to a middle portion of the second windage resistance plate, and another end is connected with the second cylinder. The brake apparatus is high in brake efficiency and reliability.

Classes IPC  ?

• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule
• B60T 1/16 - Aménagements des éléments de freinage, c.-à-d. des parties de ceux-ci dans lesquelles se produit l'effet de freinage par action autre qu'en retardant les roues, p. ex. réaction par augmentation de la résistance de l'air, p. ex. par volets d'aérofreins

Abrégé

The present application discloses a draft gear including a buffer assembly; a connection assembly, the connection assembly including a connection body, the connection body has: a first connection part, the first connection part is mutually and horizontally rotatably connected with the buffer assembly, and the first connection part and the buffer assembly have a first rotation center; a second connection part, the second connection part has a connection surface, the second connection part is connected with a train body through the connection surface, and the first rotation center is located on a rear side of the connection surface; a bearing assembly, the bearing assembly is mutually and horizontally rotatably connected with the connection assembly, the bearing assembly and the connection assembly have a second rotation center, the second rotation center is located on a front side of the connection surface; and a self-adaption assembly, the bearing assembly is connected with the buffer assembly by the self-adaption assembly.

Classes IPC  ?

• B61G 9/04 - Organe de traction combiné avec des dispositifs- tampons
• B61G 9/20 - Organes de traction Parties constitutivesAccessoires

Abrégé

A vehicle braking system (1) capable of achieving autonomous driving comprises: a braking display module (15), used to output braking system status information; a braking controller (13), used to output brake position information; an autonomous driving module (12), used to exchange data information with a vehicle autonomous driving control center (2), detect data information outputted by a braking control module (14), and output an autonomous driving operation indicator and a first target pressure value; and a braking control module (14), used to analyze the brake position information to acquire a second target pressure value, output an actual target pressure value according to the autonomous driving operation indicator and the first target pressure value so as to control a brake cylinder (16) to operate, and send the acquired braking system status information to the braking display module (15). A communication module (11) is used to enable communication between the various modules or units of the vehicle braking system (1), and enable communication between the vehicle braking system (1) and the vehicle autonomous driving control center (2). A vehicle braking method capable of achieving autonomous driving is also provided.

Classes IPC  ?

• B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager

Abrégé

A rescue coupler, comprising a coupler body (1). The two ends of the coupler body (1) are respectively provided with a first end connecting and hanging mechanism (11) and a second end connecting and hanging mechanism (12). The second end connecting and hanging mechanism (12) comprises: a first side support (1201) extending towards a second end along the coupler body (1); a second side support (1202) extending towards the second end along the coupler body (1) and provided at the side opposite to the first side support (1201); and a coupler tail pin (1203) provided between the first side support (1201) and the second side support (1202). Open gaps are formed among the coupler body (1), the first side support (1201), the second side support (1202), and the coupler tail pin (1203), so that a chain hook (2) can be hung on the coupler tail pin (1203) by means of a gap.

Classes IPC  ?

• B61G 5/04 - Couplages non prévus ailleurs pour apparier des couplages de types différents, p. ex. attelages de transition
• B61G 7/08 - Têtes d'attelage réglables
• B61G 7/00 - Parties constitutives ou accessoires

Abrégé

A transition coupler, comprising a coupler head (1) and a coupler body (2). A first end of the coupler body (2) is integrally connected to the coupler head (1), and a second end thereof is provided with a coupler tail pin (3) for coupling with an adaptive coupler. The transition coupler further comprises a first base body (4) and a second base body (5), and the first base body (4) is disposed on the coupler body (2), located on a side close to the coupler head (1) relative to the second base body (5), and connected to the second base body (5) by means of a balance mechanism (6). The second base body (5) is located on a side in which a hook (101) of the adaptive coupler extends out around the coupler tail pin (3) and is located on a side away from the coupler head (1) relative to the coupler tail pin (3). The distance between the second base body and the coupler tail pin (3) is configured to be able to make contact with the hook (101) after the hook (101) of the adaptive coupler extends out. The balance mechanism (6) comprises an elastic piece (61) and may generate elastic deformation when the transition coupler rotates relative to the adaptive coupler.

Classes IPC  ?

• B61G 5/04 - Couplages non prévus ailleurs pour apparier des couplages de types différents, p. ex. attelages de transition
• B61G 7/00 - Parties constitutives ou accessoires

Abrégé

A coupler unhooking mechanism comprises: a coupler head (1) having a coupler head cavity (101); a coupler knuckle (2) pivotally mounted on the coupler head (1) and partially extending into the coupler head cavity (101); a locking assembly disposed in the coupler head cavity (101), the locking assembly contacting a portion of the coupler knuckle (2) in the coupler head cavity (101) so as to limit relative pivoting between the coupler knuckle (2) and the coupler head (1); and an unhooking rotation component (5) comprising a main portion (501) and a first end portion (502) disposed on the main portion (501), the main portion (501) being pivotally mounted on the coupler head (1), and the first end portion (502) being disposed towards the locking assembly, wherein when the unhooking rotation component rotates with respect to the coupler head (1), the first end portion (502) contacts the locking assembly and enables the locking assembly to move so as to remove a limit on the motion of the coupler knuckle (2).

Classes IPC  ?

• B61G 3/06 - Dispositifs de verrouillage de l'articulation
• B61G 7/00 - Parties constitutives ou accessoires

Abrégé

The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation members are fixedly mounted on the mounting bracket. The present application can automatically recognize the orbit change of a train, the follow-up mechanism moves with a wheel by means of its stored elastic force and the unlocking members, and can self-locked at the target gauge position, thus realizing the change in position.

Classes IPC  ?

• B61H 5/00 - Emploi ou aménagements de freins comportant de substantielles surfaces de freinage radiales pressées l'une contre l'autre selon un mouvement axial, p. ex. freins à disques
• B61H 9/00 - Freins caractérisés par, ou modifiés pour, leur utilisation dans des systèmes, ou à des usages, ferroviaires particuliers
• B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
• F16D 65/00 - Éléments constitutifs ou détails des freins
• F16D 55/00 - Freins à surfaces de freinage substantiellement radiales pressées l'une contre l'autre dans une direction axiale, p. ex. freins à disques
• B61F 7/00 - Véhicules ferroviaires équipés pour circuler sur des voies à écartement différent
• F16D 55/224 - Freins à surfaces de freinage substantiellement radiales pressées l'une contre l'autre dans une direction axiale, p. ex. freins à disques avec disques ou patins déplaçables selon l'axe pressés contre des organes en rotation situés dans l'axe par serrage entre des organes mobiles de freinage, p. ex. des disques ou des patins de freins mobiles avec un organe d'actionnement commun pour les organes de freinage

Abrégé

A locomotive air-electric hybrid braking force control method, comprising: when in an air-electric hybrid state and when a signal for a change in the electric braking force of a locomotive is a low-level signal, then, according to a target braking force value and an electric braking force value, controlling the braking force of the locomotive to be constant; and when a signal for a change in the electric braking force of the locomotive is a high-level signal, then, according to the target braking force value, the maximum requested value of the electric braking force, the electric braking force value, and an air braking force value, controlling the braking force of the locomotive to be constant.

Classes IPC  ?

• B61H 11/14 - Combinaisons de différents types de freins, p. ex. sabots de freins agissant sur la jante de la roue combinés avec des freins à disques
• B61H 11/06 - Emploi ou aménagements des freins ou des appareils ralentisseurs non prévus ailleursCombinaisons d'appareils de genres ou de types différents de freins hydrostatiques, hydrodynamiques, ou aérodynamiques
• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule
• B60L 7/00 - Systèmes de freins électrodynamiques pour véhicules, en général
• B60T 13/58 - Systèmes combinés ou transformables

Abrégé

The present application provides an inverter heat dissipation device, comprising a cabinet assembly internally provided with an open cavity, sealed cavities, and air duct assemblies. A first fan electrically connected to a control unit is provided in the open cavity; the sealed cavities and the open cavity are sealed and isolated from each other, and a power module is provided in each sealed cavity; the air duct assemblies are arranged in the sealed cavities, and the inside of the air duct assemblies and the sealed cavities are sealed from each other; the air duct assemblies are communicated with the outside; heat sinks of the power modules are disposed in the air duct assemblies; one end of each air duct assembly extends to the open cavity; and the first fan is communicated with the air duct assemblies.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The present application provides a traction converter, comprising: a housing assembly; a first circuit assembly located in the housing assembly; a power module which comprises a second circuit assembly located in the housing assembly, the second circuit assembly and the housing assembly being movably connected to each other, and the second circuit assembly and the first circuit assembly being electrically connected to each other. When the traction converter provided by the present application is overhauled and maintained, the power module can be moved and separately overhauled, without the need for overall disassembly and assembly, so that the convenience of overhaul and maintenance is improved.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• F04D 27/00 - Commande, p. ex. régulation, des pompes, des installations ou des systèmes de pompage spécialement adaptés aux fluides compressibles

Abrégé

A synchronous soft-start networking control strategy for parallel auxiliary converters of EMU, that is, when a first auxiliary converter is connected to the bus, non-first auxiliary converters complete the networking during an amplitude soft-start process of the first auxiliary converter. Specific solution is: fast networking logic, bus fast-tracking logic and PQ droop networking control strategy. Wherein, the fast networking logic comprises recognizing the first auxiliary converter and the non-first auxiliary converter; the bus fast-tracking logic comprises tracking phase, frequency and amplitude; the PQ droop networking control strategy comprises introducing a correction coefficient K. The synchronous soft-start networking control strategy for the parallel auxiliary converters of EMU can realize quickly and reliably automatic networking in an emergency traction mode of EMU, and significantly shorten networking time in a network normal mode of EMU. Therefore, it can ensure that EMU can complete startup loading within a specified time under various working conditions, which provides strong guarantee for stable and reliable operation of EMU.

Classes IPC  ?

• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A parallel control method and a parallel control system for single-phase inverters and an inverter. Acquiring an output voltage and an output current of each of the single-phase inverters; transforming a voltage and a current in static abc coordinates into dq coordinates by reconstruction and coordinate transformation so as to realize decoupling of the voltage and the current; transforming an output voltage command value of a current loop in dq coordinates into abc coordinates by coordinate transformation; and modulating and generating modulation waves according to an output voltage command value in abc coordinates to control a switching of a power device. In the present application, a plurality of single-phase inverters are controlled to be connected in parallel and are simultaneously started to work, after one of the single-phase inverters is faulted, any other single-phase inverter automatically bears the load of the faulted single-phase inverter, so that a problem of restarting delay of a mutual backup module is solved, a real uninterrupted power supply of the power supply is realized, high reliability is achieved, and influences to vehicle driving are avoided.

Classes IPC  ?

• H02M 7/493 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande les convertisseurs statiques étant agencés pour le fonctionnement en parallèle
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont

Abrégé

A coupler telescopic apparatus comprises a housing and a drawbar capable of extending and retracting along the housing, the housing is sleeved outside the drawbar, a limiting block is fixed arranged on an outer side face of the drawbar, a locking ring capable of coming into contact with the limiting block is sleeved inside the housing, and the locking ring is coaxial with the housing and rotatably connected to the housing; a through groove is axially formed on an inner surface of the locking ring, and the through groove correspond to the limiting block in shape, so that the limiting block passes through the through groove when the through groove is aligned with the limiting block, and then an extension of the drawbar is locked by rotating the locking ring to block the limiting block after the extension of the drawbar is completed. The present application can reduce space occupation and has simple structure.

Classes IPC  ?

• B61G 9/20 - Organes de traction Parties constitutivesAccessoires

Abrégé

The present application provides a control system and method for a permanent magnet synchronous traction and transmission system. A The control system comprises a sampling unit and a controller; the sampling unit collecting an operation excitation current and an operation torque current, a input capacitor voltage and a rotor frequency; the controller acquires a target torque instruction issued to the traction and transmission system, calculates a target excitation current value and a target torque current value, and generates an excitation current regulation value and a torque current regulation value; a regulation unit is configured to generate a torque current regulation value according to the target torque current value and an operation torque current value and generate a target modulation ratio and a modulation frequency according to the excitation current regulation value and the torque current regulation value output from the regulation unit and finally output a PWM modulation wave control signal.

Classes IPC  ?

• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
• H02P 25/024 - Moteurs synchrones commandés par la fréquence d’alimentation
• H02P 27/14 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions avec au moins trois niveaux de tension
• H02P 27/12 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions appliquant des impulsions en guidant le vecteur-flux, le vecteur-courant, ou le vecteur-tension sur un cercle ou une courbe fermée, p. ex. pour commande directe du couple
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande

Abrégé

n of the regenerative braking energy recovery devices; further, configuring the total number of the regenerative braking energy recovery devices; finally, configuring the type of the regenerative braking energy recovery devices. By reasonably configure the capacity and number of regenerative braking energy recovery devices in traction substations, the configuring method of the present application allows the regenerative braking energy generated by a train during braking to be completely absorbed, thus reduce the energy consumption of braking resistors. Meanwhile, the waste of idle regenerative braking energy recovery devices is avoided, and the acquisition cost of devices is reduced. By reasonably configuring the type of regenerative braking energy recovery devices, the deficiencies of a single regenerative braking energy recovery device can be avoided.

Classes IPC  ?

• B60L 7/18 - Freinage dynamo-électrique par récupération commandant l'effet de freinage
• B60M 3/06 - Dispositions pour absorber l'énergie de récupération
• H02J 3/14 - Circuits pour réseaux principaux ou de distribution, à courant alternatif pour règler la tension dans des réseaux à courant alternatif par changement d'une caractéristique de la charge du réseau par interruption, ou mise en circuit, des charges du réseau, p. ex. charge équilibrée progressivement
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
• B60L 9/00 - Propulsion électrique par source d'énergie extérieure au véhicule

Abrégé

A system and a method for air braking pressure control, the system comprising an air charging solenoid valve (101), an air release solenoid valve (102), a pressure sensor (3), a detection module (4), a pressure control unit (6), an learning log module (701), and an abnormality control module (702). The braking control method uses a synchronous learning log control strategy of the learning log module (701). When a signal from the pressure sensor (3) is abnormal, the abnormality control module (702) deploys the control strategy of the learning log model (701) and transmits same to the pressure control unit (6), thus controlling the solenoid valves (101, 102) to move, causing a pressure chamber to be controlled (2) to gradually reach a target pressure. Control is relatively precise, and pressure control that approaches that of normal conditions can be achieved.

Classes IPC  ?

• B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
• B60T 17/18 - Dispositifs de sécuritéSurveillance

Abrégé

A bidirectional air resistance braking apparatus, comprising a base (1), first cylinders (21), second cylinders (22), a first air resistance plate (31) and a second air resistance plate (32), a first air resistance plate tail portion (311) being connected to the base (1), the first air resistance plate (31) also comprising first support rods (51), one end of each first support rod (51) being hingedly connected to a first air resistance plate central portion (312), the other end being connected to a first cylinder (21), a second air resistance plate tail portion (321) being connected to the base (1), the second air resistance plate (32) also comprising second support rods (52), one end of each second support rod (52) being hingedly connected to a second air resistance plate central portion (322), the other end being connected to a second cylinder (22). The bidirectional air resistance braking apparatus is highly efficient and highly stable.

Classes IPC  ?

• B60T 1/16 - Aménagements des éléments de freinage, c.-à-d. des parties de ceux-ci dans lesquelles se produit l'effet de freinage par action autre qu'en retardant les roues, p. ex. réaction par augmentation de la résistance de l'air, p. ex. par volets d'aérofreins
• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule

Abrégé

A lubricating oil emulsion prevention method for an air compressor, comprising: setting air compressor control modes as a low working rate mode and a high working rate mode; and performing lubricating oil emulsion prevention control on air compressors by using the two modes. According to this method, different control methods can be used under different working rate modes, and a main air compressor and an auxiliary air compressor are controlled to switch a loading/unloading working mode according to the change in total wind pressure of a vehicle, thereby effectively preventing lubricating oil of the air compressors from emulsion.

Classes IPC  ?

• F04B 49/06 - Commande utilisant l'électricité
• F04B 39/00 - Parties constitutives, détails ou accessoires de pompes ou de systèmes de pompage spécialement adaptés aux fluides compressibles, non prévus dans les groupes ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

Provided are a detection brake pad (1), and a brake clamp unit fault detection device and detection method. The detection brake pad (1) is used for fault detection of a vehicle brake device, and the detection brake pad (1) comprises a brake pad body (100), a support chamber (200), a moving member (300), an elastic force transmission medium (600) and an extension member (400), wherein the brake pad body (100) has a second mounting portion (110) and a displacement detection mounting portion (120), the support chamber (200) is provided with an access port (210), the moving member (300) is sleeved with the support chamber (200), the elastic force transmission medium (600) is located between the moving member (300) and the brake pad body (100), the extension member (400) is fixedly connected to the moving member (300), the extension member (400) corresponds to the access port (210), and the extension member (400) corresponds to the displacement detection mounting portion (120). According to the brake clamp unit fault detection device and detection method, a brake clamp unit can still be accurately tested without removing the brake clamp unit.

Classes IPC  ?

• F16D 66/00 - Dispositions pour la surveillance des conditions de fonctionnement des freins, p. ex. de l'usure ou de la température

Abrégé

A bidirectional air resistance braking apparatus, comprising a base (1), first cylinders (21), second cylinders (22), a first air resistance plate (31) and a second air resistance plate (32), a first air resistance plate tail portion (311) being connected to the base (1), the first air resistance plate (31) also comprising first support rods (51), one end of each first support rod (51) being hingedly connected to a first air resistance plate central portion (312), the other end being connected to a first cylinder (21), a second air resistance plate tail portion (321) being connected to the base (1), the second air resistance plate (32) also comprising second support rods (52), one end of each second support rod (52) being hingedly connected to a second air resistance plate central portion (322), the other end being connected to a second cylinder (22). The bidirectional air resistance braking apparatus is highly efficient and highly stable.

Classes IPC  ?

• B60T 1/16 - Aménagements des éléments de freinage, c.-à-d. des parties de ceux-ci dans lesquelles se produit l'effet de freinage par action autre qu'en retardant les roues, p. ex. réaction par augmentation de la résistance de l'air, p. ex. par volets d'aérofreins
• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule

Abrégé

A parking brake control module (1), comprising: an air inlet end (100), a first air inlet channel (200), a first air outlet channel (300), a second air inlet channel (400), a second air outlet channel (500), and a valve (600); the first air inlet channel (200) is provided with an air storage unit (210); the first air outlet channel (300) is connected to a brake cylinder (2); the second air inlet channel (400) is connected to the air inlet end (100); the second air outlet channel (500) is connected to a parking cylinder (3); when in a first working state, the valve (600) causes an air storage chamber (220) to be in communication with the first air outlet channel (300) and, at the same time, causes the second air outlet channel (500) to be in communication with the atmosphere, so as to allow for the application of parking brake force; when in a second working state, the valve (600) causes the second air inlet channel (400) to be in communication with the second air outlet channel (500) and, at the same time, causes the first air outlet channel (300) to be in communication with the atmosphere, so as to allow for the release of the parking brake. A rail vehicle comprising the parking brake control module is also disclosed.

Classes IPC  ?

• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule

Abrégé

A detection-type brake pad (1), and a brake caliper unit fault detection device and detection method. The detection-type brake pad (1) comprises a brake pad body (100), cylinder support chambers (200), pistons (300), and projection elements (400); the brake pad body (100) is provided with pressure detection units (120); the cylinder support chambers (200) are formed in the brake pad body (100); the cylinder support chambers (200) are arranged so as to correspond to the pressure detection units (120); the pistons (300) fit sealingly into the cylinder support chambers (200); the projection elements (400) are fixedly connected to the pistons (300); the cylinder support chambers (200) are provided with pressure inlets (210) that are able to supply a certain amount of pre-pressure into the chambers, as well as with openings (220) that allow for the inward and outward movement of the projection elements (400).

Classes IPC  ?

• B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
• F16D 66/00 - Dispositions pour la surveillance des conditions de fonctionnement des freins, p. ex. de l'usure ou de la température
• G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques

Abrégé

A cushioning apparatus, a coupler cushioning apparatus, and a railway train. The cushioning apparatus comprises: a cushioning assembly (1); a connection assembly (2), the connection assembly (2) comprising a connection body (21); the connection body (21) comprises a first connection part (211), the first connection part (211) being in a mutually horizontal and rotatable connection with the cushioning assembly (1), and the first connection part (211) and the cushioning assembly (1) having a first rotation center (23); a second connection part (212), the second connection part (212) having a connection surface (214); the connection surface (214) is connected to a train body (7), the first rotation center (23) being disposed at the rear side of the connection surface (214); a support assembly (3), the support assembly (3) being in a mutually horizontal and rotatable connection with the connection assembly (2), and the support assembly (3) and the connection assembly (2) having a second rotation center (36); the second rotation center (36) is disposed at the front side of the first rotation center (23); an adaptive assembly (4), the adaptive assembly (4) being connected to the support assembly (3) and the cushioning assembly (1). The present cushioning apparatus makes the installation more compact.

Classes IPC  ?

• B61G 9/04 - Organe de traction combiné avec des dispositifs- tampons
• B61G 9/20 - Organes de traction Parties constitutivesAccessoires

Abrégé

A parallel control method and system for a single-phase inverter, and an inverter. The method comprises: collect an output voltage and an output current of the single-phase inverter; by means of reconstruction and coordinate transformation, transform the voltage and current in a static abc coordinate system into a dq coordinate system and implement the decoupling of voltage and current; an output voltage instruction value of a current loop is subjected to coordinate transformation; transform the output voltage instruction value in the dq coordinate system into the abc coordinate system, and generate a modulated wave to control a switch of a power device according to the output voltage instruction value in the abc coordinate system. A plurality of single-phase inverters are controlled to simultaneously start to operate in parallel; when a single-phase inverter is failed, any other single-phase inverter automatically bears a load thereof, thereby the delay problem due to restart of a standby module is overcome; the uninterruptible power supply is implemented in a true sense; the reliability is high and the traffic is not affected.

Classes IPC  ?

• H02M 7/5381 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration push-pull de type parallèle

Abrégé

The application relates to a cooling-heat dissipating case, and a heat dissipation control method. The case comprises a first air channel cavity and an inner cavity surrounding the air channel cavity; an air inlet, the first air cavity, a first fan cavity, and an air outlet sequentially form a first ventilation path; the inner cavity comprises a component region and an empty region, the component region being provided with a heat-generating component; a second fan is provided in the inner cavity; and a first heat sink and a second heat sink are provided between the inner cavity and the first air channel cavity. The inner cavity is provided with a first temperature sensor for detecting the temperature of the heat-generating component and a second temperature sensor for detecting the air temperature of the inner cavity; the present case is further provided with a control unit that receives temperature information collected by the temperature sensors and controls the first fan and the second fan to start and to stop on the basis of said information.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The present application relates to an opening and closing mechanism and a train having the same. The opening and closing mechanism comprise a driving device, a locking device and a support arm; the driving device is connected to the locking device to drive the locking device to rotate; a first end of the locking device is rotatably mounted on a baseplate; a sliding groove in which a second end of the locking device is slidably located is formed on the support arm; a first end of the support arm is rotatably mounted on the baseplate; a second end of the support arm is connected to a fairing; the driving device drives the locking device to rotate, the locking device drives the support arm to rotate by the sliding groove, so that the support arm opens or closes the fairing.

Classes IPC  ?

• E06B 3/32 - Aménagements des battants caractérisés par le genre de mouvementAménagements des battants modèles dans les ouverturesCaractéristiques des battants ou châssis ayant trait uniquement au genre de mouvement du battant
• B61D 17/06 - Parois d'extrémités

Abrégé

A foldable vehicular coupler, comprising a coupler terminal (1); a rotating arm mechanism (2) comprising a first arm (21) and a second arm (22) rotatingly connected to the first arm (21); a fold mechanism (3) comprising a drive mechanism (31) and a force transfer component (32); the drive mechanism (31) is installed on the second arm (22), and the force transfer component (32) is rotatably installed on the first arm (21); the drive mechanism (31) and the force transfer component (32) are connected such that a drive force is transferred to the first arm (21) by means of the force transfer component (32), and the first arm (21) and the second arm (22) rotate relative to one another; the first arm (21) is connected to a vehicular body (4), the second arm (22) is connected to the coupler terminal (1); or the first arm (21) is connected to the coupler terminal (1), and the second arm (22) is connected to the vehicular body (4). Also disclosed is a vehicle having the foldable vehicular coupler. The foldable vehicular coupler enables automatic folding and reduces the number of drive elements, thereby substantially simplifying intermediate control.

Classes IPC  ?

• B61G 1/00 - Couplages comportant des parties s'engageant l'une dans l'autre, de forme ou de conformation différente, et ayant comme moyens d'attelage des chaînons, tiges, broches, manivelles ou crochets
• B61G 7/00 - Parties constitutives ou accessoires
• B61G 7/08 - Têtes d'attelage réglables

Abrégé

The application discloses a hard-shell flexibly-packaged capacitor module and a system, including: a flexibly-packaged individual capacitor and fastening plates, including a first fastening plate and a second fastening plate being oppositely mounted and connected in clasped manner; and, supports including a first support and a second support being oppositely mounted and used for connecting the individual positive and negative tabs respectively; and the two supports and the two fastening plates being enclosed to form a closed structure for accommodating the individual capacitor. Individual capacitors and a silica gel insulator are assembled inside the fastening plates clasped with each other, i.e. a “hard-shell” structure is provided for the individual capacitors; the hard-shell flexibly-packaged capacitor module is assembled as a whole, and multiple capacitor modules are connected in series or in parallel to form a required capacitor system, it is good in expansibility and easy to assemble.

Classes IPC  ?

• H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules
• H01G 11/12 - Condensateurs hybrides ou EDL à empilement
• H01G 11/82 - Fixation ou assemblage d’un élément capacitif dans un boîtier, p. ex. montage d’électrodes, de collecteurs de courant ou de bornes dans des récipients ou des encapsulations

Abrégé

A multiple unit parallel auxiliary converter synchronous soft startup networking control strategy, wherein when a first auxiliary converter is put into a bus, non-first auxiliary converters synchronously complete networking and connecting during a first amplitude soft startup process. The specific solution is: rapid networking logic, bus rapid tracking logic and a PQ droop control strategy, wherein the rapid networking logic comprises first and non-first auxiliary converter identification, the bus rapid tracking logic comprises phase and frequency tracking and amplitude tracking, and the PQ droop control strategy comprises introducing a correction coefficient K. The multiple unit parallel auxiliary converter synchronous soft startup networking control strategy implements rapid, reliable and automatic networking of auxiliary converters under a multiple unit emergency traction mode, and significantly shortens networking time under a multiple unit networking normal mode. Therefore, the present invention ensures that a multiple unit can complete startup within a specified time under various operating conditions, and provides a strong guarantee for the stable and reliable operation of the multiple unit.

Classes IPC  ?

• H02J 3/40 - Synchronisation d'un générateur pour sa connexion à un réseau ou à un autre générateur

Abrégé

Provided are a cross-platform communication system for multiple units, and further provided are a cross-platform passenger information communication system and method for multiple units based on the communication system. The communication system comprises a first multiple units platform and a second multiple units platform that use different communication buses, wherein a reconnection gateway is provided in a head car and/or tail car of the first multiple units platform and/or the second multiple units platform, the reconnection gateway communicates with a system controller of the two multiple units platforms, and the system controller of the multiple units platform provided with the reconnection gateway is internally provided with a protocol conversion unit for converting data between different communication buses. In the communication method for the cross-platform passenger information system for multiple units, data transfer between the two cars is conducted through the reconnection gateway, and the conversion between two different data formats is conducted through the protocol converter. The system and method provided in the present application can be applied to interconnection and intercommunication between different technology platforms, thereby realizing flexible grouping between multiple units, and improving the utilization rate of the multiple units.

Classes IPC  ?

• H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison

Abrégé

The present invention relates to a vehicle-mounted network system and a communication method thereof. The vehicle-mounted network system comprises signal system devices, a TCMS device, other vehicle-mounted network subsystem devices, and two mutually independent subnetworks. The signal system devices directly access a first sub-network A and a second sub-network B, respectively. The TCMS device and other vehicle-mounted network subsystem devices are classified, according to security level, into key subsystem devices having high security level and common subsystem devices having low security level; the key subsystem devices access the first subnetwork A and the second subnetwork B by means of two or more communication interfaces; and the common subsystem devices directly access the first subnetwork A or/and the second subnetwork B. The present invention integrates the signal system network and the TCMS network into the same network, so that the complexity of the vehicle-mounted network system and fault points of the system are reduced. The two subnetworks are hot standby for each other, so as to prevent normal operation of a vehicle-mounted network device from being affected when an irrecoverable failure occurs in any one of the subnetworks.

Classes IPC  ?

• H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
• H04L 12/24 - Dispositions pour la maintenance ou la gestion
• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

A locomotive braking control system and control method, belonging to the field of locomotive braking control. The locomotive braking control system comprises a balance pipe control system (1) and a brake cylinder control system (2). The balance pipe control system (1) compares a brake cylinder pre-control pressure and a balance pipe pre-control pressure, and outputs the larger pressure as a balance pipe pressure. The brake cylinder control system (2) compares a brake cylinder pre-control pressure and a balance pipe pressure, and outputs the larger pressure as a brake cylinder pressure to implement braking. The present invention implements redundancy for the two control systems.

Classes IPC  ?

• B61H 11/10 - Freins aérodynamiques commandés par volets, p. ex. intercepteurs (spoilers), fixés au véhicule

Abrégé

A control system and a method for a permanent magnet synchronous traction drive system. The control system comprises a sampling unit and a controller, the sampling unit collecting an operational excitation current and an operational torque current of a permanent magnet synchronous motor and a capacitor supporting voltage, and a resolver having a rotor frequency. The controller obtains a target torque instruction given to a traction drive system, and calculates a target excitation current value and a target torque current value, so as to generate an excitation current adjustment value and a torque current adjustment value. A torque adjustment unit is used to generate the torque current adjustment value according to the target torque current value and an operational torque current value, generate a target modulation ratio and a modulation frequency according to the excitation current adjustment value and the torque current adjustment value output by the adjustment unit, and finally output a PWM modulated wave control signal for the permanent magnet synchronous motor. The control method uses a novel SVPWM pulse control method, so as to further reduce switching frequency, improve system efficiency, and achieve the stable operation of a system having a lower switching frequency.

Classes IPC  ?

• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H02P 21/00 - Dispositions ou procédés pour la commande de machines électriques par commande par vecteur, p. ex. par commande de l’orientation du champ
• H02P 25/026 - Moteurs synchrones commandés par la fréquence d’alimentation ce qui permet de détecter la position du rotor
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

Provided is an air spring, comprising an upper cover (1), an air bag (2), a first rubber stack (3) and a second rubber stack (5), wherein the air bag (2) is arranged between the upper cover (1) and the first rubber stack (3), the first rubber stack (3) is configured to be hollow so as to form a cavity, the cavity of the first rubber stack (3) penetrates the top of the first rubber stack (3) in a vertical direction, the top of the first rubber stack (3) is connected to a first supporting member (4), and the top of the first supporting member (4) corresponds to the upper cover (1), so as to come into contact with the upper cover (1) when the air bag (2) contains no air; and the second rubber stack (5) is fixedly sleeved inside the cavity of the first rubber stack (3), the top of the second rubber stack (5) is connected to a second supporting member (6), the top of the second supporting member (6) corresponds to the upper cover (1) so as to come into contact with the upper cover (1) when the air bag (2) contains no air, and when the air bag (2) contains air, there is a height difference Δh between the top of the second supporting member (6) and the top of the first supporting member (4), where Δh is not equal to 0. The air spring can ensure the riding comfort of a vehicle under a low load condition, and also effectively prevents other parts from being damaged due to the vehicle body sinking under a heavy load condition.

Classes IPC  ?

• F16F 9/04 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement utilisant un gaz uniquement dans une chambre à paroi flexible
• F16F 13/20 - Ensembles comportant des ressorts du type non à fluide ainsi que des amortisseurs de vibrations, des amortisseurs de chocs ou des ressorts à fluide comprenant à la fois un ressort en matière plastique et un amortisseur, p. ex. un amortisseur de friction l'amortisseur étant un amortisseur à fluide, p. ex. le ressort en matière plastique ne faisant pas partie de la paroi de la chambre à fluide de l'amortisseur caractérisés en ce qu'ils comprennent aussi un ressort pneumatique

Abrégé

nnn of the regenerative braking energy recycling devices; then, configuring the total mounting number M of the regenerative braking energy recycling devices; and finally, configuring the types of the regenerative braking energy recycling devices.

Classes IPC  ?

• B60L 7/18 - Freinage dynamo-électrique par récupération commandant l'effet de freinage

Abrégé

Disclosed are a locking device (1) and an opening/closing mechanism (2) having the locking device (1), belonging to the field of mechanical manufacturing technology. The locking device (1) comprises a housing (101) having a housing first end (1011) and a housing second end (1012), wherein the first end (1011) is provided with a hole (1013), and the second end (1012) is provided with an opening (1014); a rod (102) is arranged in the housing (101), the rod (102) extends in the direction of the housing first end (1011) through the hole (1013) to the outside of the housing (101), and an end (1023) of the rod (102) located outside the housing (101) is provided with a fastener (105); a second end (1024) of the rod (102) is provided with a protruding component (106) located outside the housing (101), and a gap (107) is formed between the protruding component (106) and the housing (101); a spring (103) in a preloaded state is sleeved on the rod (102); and the second end (1024) is further provided with a first shaft (108). Further disclosed is an opening/closing mechanism (2) having the locking device (1), the opening/closing mechanism (2) being used for opening and closing a cowl (202).

Classes IPC  ?

• E05F 15/53 - Mécanismes pour battants mus par une force motrice utilisant des actionneurs à pression de fluide pour battants pivotants
• B61D 17/06 - Parois d'extrémités

Abrégé

A coupler telescopic apparatus, comprising a housing (1), and a drawbar (2) capable of telescoping along the housing, the housing being sleeved on the outside of the drawbar, an outer side surface of the drawbar being fixedly provided with limiting blocks (3), the inside of the housing being sleeved with a locking ring (4) in contact with the limiting blocks, the locking ring being coaxial with the housing, the locking ring being rotatably connected to the housing, an inner surface of the locking ring being provided with slots (41) along the axial direction, the shape of the slots corresponding to the limiting blocks, so that when the slots are aligned with the limiting blocks, the limiting blocks pass through the slots, and when an extension of the drawbar is complete, the locking ring is rotated to restrict the limiting blocks, and lock the extension of the drawbar. The coupler telescopic apparatus reduces the amount of occupied space, and has a simple structure. Also disclosed is a coupler, comprising the coupler telescopic apparatus.

Classes IPC  ?

• B61G 9/04 - Organe de traction combiné avec des dispositifs- tampons

Abrégé

An automatic uncoupling mechanism for couplers comprises a coupler knuckle spindle and a driving unit comprising a cylinder body hinged to a coupler body and a telescopic member; and further comprises a first rotating member, a boss and a boss stopper, wherein the first rotating member comprises a crank hinged to the telescopic member and a rotating part being sheathed on the coupler knuckle spindle. The driving unit unidirectionally drives the telescopic member so that the rotating part drives the coupler knuckle spindle to unidirectionally rotate by the contact of the boss with the boss stopper, realizing coupler uncoupling; and, after the driving unit drives the telescopic member to return to its position, the rotation of the coupler knuckle spindle for achieving coupler coupling is not limited by the rotating part. The present application may reduce the lateral force of the coupler knuckle to the driving unit during the uncoupling process of the coupler, and may cause the spring to drive the coupler knuckle to rotate rapidly and lock the coupler during the coupler coupling process.

Classes IPC  ?

• B61G 7/00 - Parties constitutives ou accessoires
• B61G 3/20 - Dispositifs de commande, p. ex. pour dételer
• B61G 7/02 - Outils à main pour atteler ou dételer

Abrégé

A follower mechanism for a variable gauge bogie, said mechanism comprising a follower connecting piece (1), unlocking pieces (2, 3) located on two sides of the follower connecting piece (1) and movably connected to the follower connecting piece (1), a lateral displacement identification apparatus movably connected to the unlocking pieces (2, 3), a toothed locking positioning apparatus mounted on the follower connecting piece (1), and at least two mutually parallel fixing pieces (4, 5). The follower connecting piece (1) is slidably mounted with the fixing pieces (4, 5), end portions of the unlocking pieces (2, 3) are fixedly connected to sliding pieces (201, 301), and the toothed locking positioning apparatus is respectively movably connected to the lateral displacement identification apparatus and the fixing pieces (4, 5). A brake caliper unit comprises a mounting bracket (12), the follower mechanism, and a brake execution mechanism (13) mounted on the mounting bracket (12), the follower connecting piece (1) being mounted with the brake execution mechanism (13), the fixing pieces (4, 5) being fixedly mounted on the mounting bracket (12). The brake caliper unit mechanism can automatically identify a train variable gauge, move with respect to a wheel by means of elastic force stored up by the follower mechanism and the unlocking pieces, and perform self-locking at a target gauge position, so as to implement a change in position. Also provided is the brake caliper unit for a variable gauge bogie, said unit comprising the described follower mechanism.

Classes IPC  ?

• B61H 5/00 - Emploi ou aménagements de freins comportant de substantielles surfaces de freinage radiales pressées l'une contre l'autre selon un mouvement axial, p. ex. freins à disques

Abrégé

The present application relate to a follow-up mechanism and a brake caliper unit for gauge-changeable bogie, the follow-up mechanism includes a follow-up connector, unlocking members that are located on two sides of the follow-up connector and movably connected to the follow-up connector, a transverse displacement recognition device movably connected to the unlocking members, a toothed locking and positioning device mounted on the follow-up connector, and at least two mutually parallel fixation members; the follow-up connector is in sliding fit with the fixation members, and sliders are fixedly connected at ends of the unlocking members; the toothed locking and positioning device is movably connected to the transverse displacement recognition device and fixation members, respectively; the brake caliper unit comprises a mounting bracket, the follow-up mechanism, and a brake actuator mounted on the mounting bracket, the follow-up mechanism is installed in cooperation with the brake actuator, and the fixation members are fixedly mounted on the mounting bracket. The present application can automatically recognize the orbit change of a train, the follow-up mechanism moves with a wheel by means of its stored elastic force and the unlocking members, and can self-locked at the target gauge position, thus realizing the change in position.

Classes IPC  ?

• B61H 5/00 - Emploi ou aménagements de freins comportant de substantielles surfaces de freinage radiales pressées l'une contre l'autre selon un mouvement axial, p. ex. freins à disques

Abrégé

Disclosed are an encapsulated flexibly packaged capacitor module (5) and system. The capacitor module comprises a flexibly packaged capacitor cell (1) and securing plates (3), the securing plates (3) comprising a first securing plate (31) and a second securing plate (32) mounted opposite each other and connected in a snap-fit manner, and further comprises support bodies (4), wherein the support bodies (4) comprise a first support body (41) and a second support body (42) mounted opposite each other and respectively used for connecting a cell positive electrode tab (111) and a cell negative electrode tab (112), and a closed structure for wrapping the flexibly packaged capacitor cell (1) is formed by the two support bodies (41, 42) and the two securing plates (31, 32). The advantage of the above-mentioned solution is assembling a flexibly packaged capacitor cell and a silica gel insulator within the snap-fitted securing plates, namely, additionally providing an "encapsulated" structure for the flexibly packaged capacitor cell and combining and assembling the encapsulated flexibly packaged capacitor module as a whole; and connecting multiple encapsulated flexibly packaged capacitor modules in series or in parallel to form a desired encapsulated flexibly packaged capacitor system, this allowing a good extensibility and easy assembly.

Classes IPC  ?

• H01G 11/10 - Condensateurs hybrides ou condensateurs EDL multiples, p. ex. réseaux ou modules

Abrégé

Disclosed is a valve assembly (22) arranged on a piston body (21) of an oil damper (3), wherein a valve cover (221) is provided with a fluid hole (2213). Oil above the piston body (21) successively passes through the fluid hole (2213) and a discharge hole (211) so as to realize unloading and vibration-damping functions, thus avoiding the geometrical tolerance between a valve cover (121) and a valve core (122) being influenced when an unloading opening (1222) is machined in a side wall of a blind hole (1221) of the valve core (122) in the prior art, thereby ensuring that the valve cover (221) and a valve core (222) fit precisely and further making the valve assembly (22) have a stable quality and a stable precision performance. Further disclosed is a piston unit (2) applied to the oil damper (3) and provided with the valve assembly (22) mentioned above, wherein same has a stable quality and stable precision performance. Further disclosed is an oil damper (3) provided with the piston unit (2) mentioned above, wherein same has a stable quality and stable precision performance.

Classes IPC  ?

• F16F 9/34 - Structure des clapets particuliersForme ou structure des passages d'étranglement
• F16K 15/06 - Soupapes, clapets ou valves de retenue à corps de soupapes rigides guidés par tige-guide

Abrégé

Provided is a real-time data scheduling method having a fault tolerance function for use in the field of rail transportation, said method comprising the following steps: step 1, initialising a real-time Ethernet switch system having a fault tolerance function; step 2, monitoring switch failure; step 3, in response to switch failure, when a CPU board detects peripheral switch failure, a CPU sending a command for turning on the fault tolerance function to a switch board, thereby turning on the fault tolerance function for a port connected to a faulty switch; step 4, determining whether an arbitration module is turned on according to the fault tolerance function for each port; step 5, upon reaching a receiving window of a data packet, controlling a logic module to determine an address space of the data packet according to a data stream identifier field. The present invention effectively prevents real-time data originally passing through faulty switches from arriving at the next switches early, thereby causing the data and the corresponding receiving time windows to be mismatched, which leads to the problem of network packet loss.

Classes IPC  ?

• H04L 12/26 - Dispositions de surveillance; Dispositions de test

Abrégé

A brake pad pressure testing device of a locomotive vehicle, used for testing brake pad pressure of a brake caliper unit of the locomotive vehicle. The testing device comprises a data acquisition box (7) used for acquiring pressure data, pressure testing units (6) connected to the data acquisition box (7), and a PC terminal (1) used for analyzing and displaying the pressure data; multiple pressure testing units (6) are configured to correspond to each brake caliper unit of the vehicle so as to separately acquire the brake pad pressure data of each brake caliper unit of the locomotive vehicle; each pressure testing unit (6) is electrically connected to the data acquisition box (7); the data acquisition box (7) is electrically connected to the PC terminal (1); the data acquisition box (7) acquires the pressure data of the pressure testing units (6), and transmits the pressure data to the PC terminal (1). The pressure testing device can simultaneously test the brake pad output pressure of a whole vehicle, improves the working efficiency, and provides possibility for confirming the brake performance of the brake caliper unit before the locomotive vehicle leaves a factory.

Classes IPC  ?

• G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques

Abrégé

A communication system for sharing of a radio frequency antenna by multiple data modules. The communication system comprises external antennas, i.e. primary and secondary antennas, an external power divider, a switching switch, and N groups of power divider units. The power divider units comprise two antenna signal power dividers, and each group of power divider units corresponds to a group of communication units. The communication units comprise multiple communication modules, and each of the communication modules comprise a SIM card. The primary antenna is connected to an input terminal of the external power divider, and the secondary antenna is connected to the switching switch. In a communication method based on the above system, the number of antenna signal power dividers connected to an output terminal of the external power divider is adjusted according to the number of connected wireless communication units, so as to control a connection path between the switching switch and the communication units. The present application uses one external antenna, supports expansion of communication units and communication modules and can realize sharing of one external antenna by multiple data modules for communication.

Classes IPC  ?

• H04W 88/10 - Dispositifs formant point d'accès adapté au fonctionnement dans des réseaux multiples, p. ex. points d'accès multi-mode
• H04B 1/3827 - Émetteurs-récepteurs portatifs
• H04B 1/40 - Circuits

Abrégé

A control system and method for vehicle support machine lifting unit load testing, the control system being used for testing a lifting unit and comprising a base (11), the base (11) being provided with a support (12) capable of mounting a lifting unit to be tested (2), the support (12) being provided with a load unit (13) used for applying a load force to the lifting unit to be tested (2), the load unit (13) being electrically connected to a control unit capable of controlling the load unit (13) to apply pressure according to a set value. The control method uses the control system. The control system performs load testing on the lifting unit (2) of a vehicle support machine device before the processing and assembly of said device is complete, and verifies the functions and static strength of the lifting unit (2). The testing is convenient and saves costs.

Classes IPC  ?

• G01M 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01M 1/00 - Test d'équilibrage statique ou dynamique des machines, des structures ou des ouvrages

Abrégé

An automatic decoupling mechanism for a vehicle coupler, comprising a coupler knuckle rotary shaft (1), a driving unit (2), a first rotary member (4), a protrusion (5), and a protrusion stopper (6). The driving unit comprises a cylinder (201) hingedly connected to a coupler (3), and a telescopic member (202) axially moving along the cylinder. The first rotary member comprises a crank (401) hingedly connected to the telescopic member, and a rotary part (402) fixedly connected to the crank and sheathed around the coupler knuckle rotary shaft. The telescopic member can be unidirectionally driven by the driving unit, so that the rotary part can drive the coupler knuckle rotary shaft under the effect of contact between the protrusion and the protrusion stopper to unidirectionally rotate, and the vehicle coupler can be decoupled; the coupler knuckle rotary shaft rotates for coupling the vehicle coupler without constraints of the rotary part after the telescopic member is driven by the driving unit to return. The decoupling mechanism is in an automatic decoupling mode, and accordingly, lateral force applied by a coupler knuckle on the driving unit in the vehicle coupler decoupling process can be reduced, and the coupler knuckle can be driven by tension springs to quickly rotate in the vehicle coupler coupling process so as to lock the vehicle coupler.

Classes IPC  ?

• B61G 3/14 - Dispositifs de commande, p. ex. pour dételer
• B61G 3/20 - Dispositifs de commande, p. ex. pour dételer

Abrégé

A threaded interface buffer provided with anti-rotation structures, said buffer comprising a buffer housing (1), a buffer core (2) and a drawbar (3), the drawbar (3) comprising a connection portion (4) connected to the buffer core (2). The drawbar (3) is threadedly connected to the buffer core (2) via the connection portion (4), a primary anti-rotation structure (5) limiting the rotation of the drawbar (3) and the buffer core (2) is mounted on said components, and a secondary anti-rotation structure (6) limiting the rotation of the drawbar (3) and the buffer housing (1) is mounted between said components, thereby enhancing the versatility and adaptability of the buffer, and ensuring the operational stability of the buffer.

Classes IPC  ?

• B61G 9/04 - Organe de traction combiné avec des dispositifs- tampons

Abrégé

A phase shifted full bridge charger control system and a control method, the control system comprising a sampling system and a charger controller, the charger controller comprising: an operation start-up determination unit, a soft-start control unit, an operation control unit and a smooth switching unit, the operation control unit comprising a mode determination unit, a constant voltage control unit, a total current current-limiting control unit and a charging current-limiting control unit. Within a charger operating process, after soft-starting has finished, switching occurs between a constant voltage operation state, a total current current-limiting operation state and a charging current-limiting operation state according to differences in conditions, and the smooth switching unit enables the controller to switch between the operation states according to differences in the charger operation states. The present invention implements smooth transitioning within the charger control method, and has high steady-state performance and dynamic performance.

Classes IPC  ?

• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H01M 10/44 - Méthodes pour charger ou décharger

Abrégé

An independent module combination 3U chassis structure-based train fire alarm communication method. An IO board external address line identifies a carriage number, and calls a detector for configuration; the detector collects temperature information and smoke information, and sends said information to a CPU board for processing; the CPU board performs a determination on the collected information, and outputs alarm information; after issuing an alarm, the CPU board sends the alarm information to a driver cab HMI display screen; the IO board disconnects a signal output of a vehicle safety loop and sends alarm information to the driver cab HMI display, and a DISP board red alarm indicator light lights up; a DS board, an Enet board and a wireless board collect, store and upload the temperature information, the smoke information and the alarm information. When the detector communicates with a CAN board, via a detector forwarding mechanism, with regard to detector CAN frame address increasing or decreasing operations, when the detector receives CAN frames having different addresses, the addresses of response frames are also different, thereby increasing system configurability.

Classes IPC  ?

• G08B 17/06 - Déclenchement électrique de l'alarme, p. ex. utilisant un interrupteur actionné thermiquement

Abrégé

A heavy freight train grouping device and grouping method, and an electronically controlled pneumatic brake system. Longitude and latitude data of a vehicle control unit is obtained via BeiDou positioning, first car status data is obtained by detecting a first car identification terminal, and the vehicle control unit need only send the obtained position data and first car status data to a train head end device HEU via a communication module, thereby reducing the number of communication messages between the vehicle control unit and the train head end device HEU, eliminating cumbersome processes wherein various vehicle control units respectively connect and disconnect switchable loads, shortening train grouping time, and reducing the complexity of train grouping, so that train grouping is simple and rapid.

Classes IPC  ?

• B61L 15/00 - Indicateurs de signalisation sur le véhicule ou sur le train
• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique

Abrégé

A TigerSharc series DSP start-up management chip and management method, the start-up management chip comprising an interface unit, a dual-port RAM unit, a management unit and a DSP download management unit, and also comprising a flash drive unit and a NOR flash chip. The management unit is connected to the flash drive unit, the dual-port RAM unit is connected to the NOR flash chip via the flash drive unit, and the NOR flash chip communicates with the DSP download management unit via the flash drive unit. The management chip provides two start-up modes, NOR flash chip and external bus start-up modes, improves a host boot start-up method, provides two start-up program download means, and significantly increases the start-up speed of a TigerSharc series DSP chip.

Classes IPC  ?

• G06F 9/44 - Dispositions pour exécuter des programmes spécifiques

Abrégé

A brake beam fatigue test bench, used for simultaneously testing the fatigue strength of two brake beams (6), and comprising a base (1) and four columns (81, 82, 83, 84) which are perpendicular to the base (1) and arranged at intervals above the base (1). A first tangential force load actuator (3) is vertically mounted between the first column (81) and the second column (82), front and rear sides of a bottom portion of the first tangential force load actuator (3) are provided with simulation wheels (2), a pressure load actuator (5) is vertically mounted between the second column (82) and the third column (83), a second tangential force load actuator (4) is vertically mounted between the third column (83) and the fourth column (84), and front and rear sides of a bottom portion of the second tangential force load actuator (4) are provided with simulation wheels (2). The brake beam fatigue test bench improves the vertical and horizontal stiffness of the test bench.

Classes IPC  ?

• G01M 13/00 - Test des pièces de machines

Abrégé

A broadband communication network architecture for a train control and service common network, said architecture comprising: a trusted network and an untrusted network. The trusted network comprises trusted car-level network elements arranged within each car, and a head car and a tail car are also respectively provided with a trusted train-level network element in addition to the trusted car-level network element. The untrusted network comprises untrusted train-level network elements respectively arranged within the head car and the tail car. A trusted train-level network element communicates with an untrusted train-level network element via a security gateway, a plurality of security gateways being mutually redundant. The network architecture is a network architecture for a train control network and service network common network, implements common network transmission of train control, monitoring and diagnostic information, passenger information and video information, and common network transmission for a passenger information service system network and a train network, satisfies broadband requirements of the passenger information service system network, and ensures the stability of the train network.

Classes IPC  ?

• H04L 12/437 - Isolement de la défaillance de l'anneau ou reconfiguration
• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

A multiple unit (MPU) offline variable monitoring system and method, the monitoring system comprising a main control unit, a serial port unit, an Ethernet interface, a TF card interface and a status indicator lamp, the serial port unit, the Ethernet interface, the TF card interface and the status indicator lamp being electrically connected to the main control unit, the main control unit being connected to a PC machine and a TF expansion card via the Ethernet interface and the TF card interface, monitored offline variable values being recorded within the TF expansion card. The monitoring method comprises three operating modes, namely a configuration mode, an operation mode and a download mode, a multiple unit (MPU) offline variable continuous long-term monitoring operation is implemented via a multi-thread operating system using a TCP/IP communication thread, a main control thread and a serial port data monitoring thread, a monitoring data recording means may be flexibly configured, and a logic control variable monitoring operation may be implemented for four multiple unit central control units (MPUs) at most.

Classes IPC  ?

• G05B 23/02 - Test ou contrôle électrique

Abrégé

The present application relates to the electronic field of railways, and in particular to the traction control system for electric multiple units. A host processor of the traction control system for electric multiple units is connected to a subordinate computer board via a CPCI bus. The traction control system for electric multiple units comprises a fast computing board, a network module and a debugging module. An instruction is passed to the subordinate computer board via the CPCI bus, and meanwhile, the subordinate computer board passes status information to the host processor via the CPCI bus to realize overall control on the interior of the traction control system for electric multiple units. Bidirectional communication between the signal sampling board and the fast computing board is realized by a high-speed differential LinkPort bus to realize quick control on the inverter power module and the four-quadrant power module. Bidirectional communication between the network card and boards of the I/O module is realized by a CAN bus, and digital signals and analog signals sent by boards of the I/O module are transferred to the host processor via the CPCI bus to ensure stability and reliability in information transmission of the traction control system for electric multiple units.

Classes IPC  ?

• B60L 15/32 - Commande ou régulation des véhicules à plusieurs moteurs propulsés électriquement
• H04L 29/08 - Procédure de commande de la transmission, p.ex. procédure de commande du niveau de la liaison
• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
• B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
• G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)

Abrégé

The present application relates to the technical field of magnetic track brake, and in particular to a testing device for electromagnetic attraction force of a magnetic track brake, comprising a steel rail, a force measuring rail block, a guide groove, an elastic force measuring device and a pull machine, wherein the steel rail consists of segmented steel rails, the groove body of the guide groove is vertically provided between the segmented steel rails, the limiting plate is fixed on an inner wall of the groove body, the force measuring rail block and the elastic force measuring device are both located inside the groove body, and a bottom of the force measuring rail block is connected to the elastic force measuring device and the pull machine through an intermediate connection rod.

Classes IPC  ?

• G01M 19/00 -
• G01L 5/28 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour le test des freins
• G01M 17/08 - Véhicules ferroviaires

Abrégé

Disclosed is a hydraulic brake unit oil tank breather for tramcars, which comprises a breathing plug (4), a sealing ring (5), an air guide hole (6), and an air guide tube (7), wherein the air guide hole adopts a through hole structure and is arranged at the upper end inside a modular valve block (2), and by means of the air guide tube extending into the air cavity of an oil tank and the breathing plug being arranged in an electric element protection cover (1), the electric element protection cover, the modular valve block and the oil tank are in communication with one another. The ventilation of the oil tank is realized by means of two waterproof air-permeable components (42), and during replacement, only the waterproof air-permeable components need to be replaced, without the need to remove the entire breathing plug from the oil tank, thereby facilitating maintenance and replacement; and when the surface of the oil tank is covered by ice and snow, since the breathing plug is arranged in the electric element protection cover and the waterproof air-permeable components are mounted on the side of the body of the breathing plug, the air-permeable sides of the waterproof air-permeable components cannot be covered by rainwater and snow; moreover, rainwater, snow and the like can be effectively prevented from falling in, thereby ensuring the running safety of a train.

Classes IPC  ?

• F15B 21/04 - Mesures particulières prises en rapport avec les propriétés du fluide

Abrégé

An auxiliary spring, a belted capsule and an air spring are disclosed. The air spring comprises the auxiliary spring and the belted capsule arranged thereabove. The auxiliary spring comprises a bracket (1), a rubber (2) with an edge of a tilted ellipsoidal structure, and a base plate (3). The bracket (1) has a reverse convex structure with a downward support post on a base surface. A concave hole on the center of the rubber (2) encapsulates the entire support post. The top of the rubber (2) contacts with the recessed base surface of the bracket (1). The belted capsule comprises an upper cover (41) and a capsule body (42). The capsule body (42) has a hollow structure which is installed below the upper cover (41). The top of the capsule body (42) is an annular opening, and vertical part of the middle section thereof is a waistband portion. The top of the capsule body (42) is connected with the upper cover (41) by means of a connecting element (44). A positioning bulge (751) is formed and projected upwardly on the top surface of the bracket (1). A top surface of the positioning bulge (751) is fixed with a friction plate (52) which forms the first gap E with the upper cover (41).

Classes IPC  ?

• F16F 1/373 - Ressorts en matière plastique, p. ex. en caoutchoucRessorts faits d'un matériau à friction intérieure élevée caractérisés par une forme particulière
• F16F 9/04 - Ressorts, amortisseurs de vibrations, amortisseurs de chocs ou amortisseurs de mouvement de structure similaire, utilisant un fluide ou moyen équivalent comme agent d'amortissement utilisant un gaz uniquement dans une chambre à paroi flexible

Abrégé

A self-adjusting supporting head comprises a vehicle body lifting column (10) and a load-bearing detection device arranged on the vehicle body lifting column (10). The load-bearing detection device comprises a spring supporting plate (5), a spring (6), a limiting switch tip (8), a load limiting switch (9) and a floating load-bearing adjusting device. The floating load-bearing adjusting device comprises a floating load-bearing block (1), a floating load-bearing block mounting base (2) and a floating connector. The floating load-bearing block is in spherical fit with the floating load-bearing block mounting base.

Classes IPC  ?

• B66F 7/00 - Châssis de levage, p. ex. pour lever des véhiculesAscenseurs à tablier
• B66F 7/28 - Détails de structure, p. ex. butées d'arrêt, organes de support pivotants, curseurs coulissants réglables aux dimensions de la charge
• B61F 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe

Abrégé

Disclosed is a device for testing electromagnetic attraction force of a magnetic track brake, comprising a steel rail (1), a force-testing rail block (2), a guide slot (3), an elastic force-testing device (4) and a tensile machine (5), wherein the steel rail (1) serves as a sectional steel rail (1), a slot body (6) of the guide slot (3) is perpendicularly disposed between sectional steel rails (1), a limiting plate is fixed to an inner wall of the slot body (6), the force-testing rail block (2) and the elastic force-testing device (4) are both located inside the slot body (6), and the bottom of the force-testing rail block (2) is connected to the elastic force-testing device (4) and the tensile machine (5) through an intermediate connection rod. Compared with a conventional force-testing device, the attraction force testing device is simple in structure and is convenient for force testing, and can efficiently and accurately test the electromagnetic attraction force value of the magnetic track brake, and ensure reliability and safety of the service brake of trains.

Classes IPC  ?

• G01L 5/28 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour le test des freins

Abrégé

The present invention relates to the technical field of on-site bus communications, and particularly to a protocol converter and conversion method of a CPCI bus and an ISA bus suitable for communication between a railway vehicle CPU and a multifunction vehicle bus (MVB) device. The protocol converter comprises a CPCI local bus interface expansion time sequence module, an ISA bus interface time sequence module, a CPCI-ISA-matching bus time sequence interface module and a time clock management module. The CPCI bus communicates with the ISA bus via the protocol converter, and the protocol converter replaces a traditional conversion bridge without changing a traction controller structure and other devices in a system; in addition, the present invention has good flexibility and multiple functions, supports 8-bit or 16-bit data width of the ISA bus, and supports an IO operation of a CPCI bus device with respect to an ISA bus device, or an operation from memory.

Classes IPC  ?

• H04L 12/40 - Réseaux à ligne bus

Abrégé

Disclosed is a motor train unit traction control system. A processor host of the motor train unit traction control system is connected to a lower computer board card through a CPCI bus, and comprises a rapid operation board, a network module and a debugging module. An instruction is transmitted to the lower computer board card through the CPCI bus. At the same time, the lower computer board card transmits state information to the processor host through the CPCI bus, so as to realize the overall control inside the motor train unit traction control system. A signal sampling board and the rapid operation board perform bi-directional communication through a high-speed differential LinkPort bus, so as to realize the rapid control over an inverter power module and a four-quadrant power module. The network board card performs bi-directional communication with various board cards of an I/O module through a CAN bus, and transmits digital quantity and analogue quantity signals sent by the various board cards of the I/O module to the processor host through the CPCI bus, so as to ensure the stability and the reliability of information transmission of the motor train unit traction control system.

Classes IPC  ?

• G05B 19/418 - Commande totale d'usine, c.-à-d. commande centralisée de plusieurs machines, p. ex. commande numérique directe ou distribuée [DNC], systèmes d'ateliers flexibles [FMS], systèmes de fabrication intégrés [IMS], productique [CIM]

Abrégé

A balancing apparatus comprises a rotating shaft (2) arranged on a transition coupler (1), a rotating rod (4) and a top seat (7). The rotating rod (4) comprises an upper and lower end plates (11,12), and a ramp protrusion (13) that is arranged between the upper and lower end plates (12), and is of a sheet protruding structure; when the upper and lower end plates serve as the reference, in the longitudinal direction, the ramp protrusion (13) outward inclines towards the rotating rod, one end of the rotating rod (4) is arranged on the rotating shaft, a pin shaft (5) is arranged at the other end of the rotating rod (4), an eyelet bolt (6) is further arranged on the pin shaft (5), and the rotating rod (4) can rotate around the rotating shaft (2) and hinged to the eyelet bolt (6) through the pin shaft (5). A through hole is formed in the top seat (7), the eyelet bolt (6) penetrates through the through hole in the top seat, a nut (9) is fixedly arranged at the tail end of the eyelet bolt (6), a spring (10) is arranged between the nut (9) and the through hole of the top seat (7), and the diameter of the spring (10) is larger than the diameter of the through hole in the top seat (7). The balancing apparatus prevents a “bent head” phenomenon in a transition coupler when coupling car-couplers.

Classes IPC  ?

• B61G 5/04 - Couplages non prévus ailleurs pour apparier des couplages de types différents, p. ex. attelages de transition
• B61G 7/00 - Parties constitutives ou accessoires

Abrégé

A segmented inverting cover plate apparatus for an underfloor vehicle lifting jack comprises a cover plate comprising a first movable cover plate (4) and a second movable cover plate (6), wherein the first movable cover plate (4) and the second movable cover plate (6) are pivotly connected via a pin shaft (15). An anti-inversion block (5) is provided directly below the pin shaft (15). A guide wheel (7) is provided below the end of the second movable cover plate (6) away from the first movable cover plate (4). An inverting arm (3) is provided below the first movable cover plate (4), with one end of the inverting arm (3) connected to the anti-inversion block (5) via a bearing (13), the other end of the inverting arm connected to a powered push rod (1) via a pin shaft (17) and an oil-containing bearing (18), and the powered push rod (1) is installed on a powered push rod mounting seat (2).

Classes IPC  ?

• B66F 7/28 - Détails de structure, p. ex. butées d'arrêt, organes de support pivotants, curseurs coulissants réglables aux dimensions de la charge

Abrégé

A self-adjusting supporting head comprises a vehicle body lifting column (10) and a detection bearing device arranged on the vehicle body lifting column. The detection bearing device comprises a spring supporting plate (5), a spring (6), a limiting switch thimble (8), a load limiting switch (9) and a floating bearing adjusting device. The floating bearing adjusting device comprises a floating bearing block (1), a floating bearing block mounting base (2) and a floating connecting piece. The floating bearing block is in spherical fit with the floating bearing block mounting base. The floating bearing block can swing in random directions above the floating bearing block mounting base according to the specific state of a steel plate in contact with the floating bearing block. When the heights of a plurality of steel plates welded on the side beam of a vehicle are not inconsistent, the floating bearing block can automatically correct according to the steel plates through a spherical fit structure, so as to realize that the upper surface of the floating bearing block is in complete contact with the steel plates, and ensure that the side beam of the vehicle is uniformly stressed and the vehicle is not damaged.

Classes IPC  ?

• B61K 5/00 - Dispositifs pour placer les véhicules sur la voieDérailleursSoulèvement ou abaissement des essieux ou des roues des véhicules ferroviaires

Abrégé

Provided is a hand brake limiting device, comprising a bearing I (10), a spring, a spring holder (12), a guide plate (9), and a guide plate holder (23); the bearing I (10) is disposed on the spring holder (12); the spring is sleeved on the outside of the bearing I (10); the guide plate (9) and the guide plate holder (23) are sequentially disposed at the side of the spring away from the spring holder (12); a stopper post III (7) is secured to the side of the spring holder (12) facing the spring; a stopper post In (8) is secured to the side of the guide plate (9) facing the spring; a stopper post II (26) is secured to the side of the guide plate holder (23) facing the guide plate (9); the two ends of the spring are curved shapes; the guide plate (9) is provided with an arcuate groove running through the guide plate (9); the quantity of the guide plates (9) is the number n, where 1≤n≤10; when n≥2, the stopper posts In on the nth guide plate (9) rotate in the arcuate groove of the n-1th guide plate; the stopper post II (26) rotates in the arcuate groove of the nth guide plate. The limiting device may enable the center distance of the drive shaft of the hand brake and the end chain of the chain winding shaft to increase by 47 mm, avoiding the problem of the chain interfering with the movable pulley when the hand brake is deployed and thus affecting the performance of the hand brake, and also providing for a better appearance.

Classes IPC  ?

• B61H 13/04 - Mise en action à la main ou par un autre moyen humain par des mécanismes comprenant une transmission à engrenage
• B61H 13/20 - Mécanismes de transmission

Abrégé

Provided is a hand brake, comprising a hand wheel (4), a chain (5), an enclosure (1), and a drive shaft (3), bull gear (13), and base assembly disposed in the enclosure (1); the hand wheel (4) is connected to the drive shaft assembly (3), one end of the chain (5) is fixed to the bull gear (13) by means of rivets, and the main shaft of the bull gear (13) is a chain winding shaft (2). The hand brake further comprises a limiting means disposed on the chain winding shaft (2) between the bull gear (13) and the base (22); the limiting means comprises a bearing I (10), a torsion spring (11), a guide plate (9), and a guide plate holder (23); the torsion spring (11) is sleeved on the outside of the bearing I (10). a stopper post III (7) is secured to the side of the torsion spring holder (12) facing the spring; a stopper post I (8) is secured to the side of the guide plate (9) facing the torsion spring (11); a stopper post II (26) is secured to the side of the base (22) facing the guide plate holder (23); the stopper post II (26) passes, by means of a hole, through the guide plate holder (23) and rotates in the arcuate groove of the guide plate (9). The center distance between the drive shaft (16) and the chain winding shaft (2) end chain (5) is increased by 47 mm; installing the hand brake not only prevents the problem of the chain interfering with the movable pulley when the hand brake is deployed and thus affecting the performance of the hand brake, but also provides for a better appearance.

Classes IPC  ?

• B61H 13/04 - Mise en action à la main ou par un autre moyen humain par des mécanismes comprenant une transmission à engrenage
• B61H 13/02 - Mise en action à la main ou par un autre moyen humain

Abrégé

A fatigue testing device for a pulsation fatigue testing machine and the pulsation fatigue testing machine. The fatigue testing device comprises a force transfer plate (1) and a support column (2) fixed on a working platform (3), wherein a pre-set part of the force transfer plate (1) is hinged with the support column (2), and the two ends of the force transfer plate (1) can swing up and down around the support column (2); and clamps (5, 6) are respectively arranged at one end of the force transfer plate (1) and on the working platform (3) and are used for connecting the two ends of a workpiece (7) to be stretched, and an actuator (4) is arranged at the other end of the force transfer plate (1), so that the other end of the force transfer plate (1) stretches the workpiece (7) to be stretched when the actuator (4) applies an acting force to one end of the force transfer plate (1) under the control of a control system. The fatigue testing device for a pulsation fatigue testing machine and the pulsation fatigue testing machine can perform the tension fatigue test on small specimens. The test range of the pulsation fatigue testing machine can be expanded when the fatigue testing device is applied to the pulsation fatigue testing machine.

Classes IPC  ?

• G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires

Abrégé

Disclosed are a vehicle speed control method and device, the method comprising: receiving a second speed value inputted by a user, and acquiring the first speed value of a vehicle; determining the speed difference value by deducting the first speed value from the second speed value; if the speed difference value is less than 0, then determining that the vehicle is in the brake control stage, and determining the braking force required by the vehicle to reach the second speed value from the first speed value; and if the speed difference value is greater than 0, then determining that the vehicle is in the traction control stage, and determining the traction force required by the vehicle to reach the second speed value from the first speed value. The present invention determines the speed difference value by deducting the first speed value from the second speed value , and classifies vehicle speed control into brake control and traction control by determining whether the speed difference value is positive or negative, such that speed control can be achieved via not only a vehicle traction system but also a vehicle brake system, enabling vehicle speed control to be more automatic, avoiding human speed control operation, and improving the safety of vehicle travelling.

Classes IPC  ?

• B61C 17/00 - Aménagement ou disposition des élémentsDétails ou accessoires non prévus ailleursUtilisation de mécanismes ou de systèmes de commande

Abrégé

A laser shock peening device and a water spray pipe (10) thereof. The laser shock peening device comprises a clamping assembly (5) for clamping a lens seat (6) and the water spray pipe (10). The water spray pipe (10) comprises a pipe body (1) that is provided with a water inlet and a water outlet, a nozzle (2) that is connected to the water outlet of the pipe body (1) has a spray opening with a rectangular cross section, and grooves (21) with arc-shaped cross sections are oppositely provided at two ends of the spray opening. The laser shock peening device can form a stable water restraint layer, and can adapt to workpieces in various situations by means of adjustment of the spray position and spray angle.

Classes IPC  ?

• C21D 7/06 - Modification des propriétés physiques du fer ou de l'acier par déformation par travail à froid de la surface par grenaillage ou similaire
• C21D 1/09 - Durcissement de surface par application directe d'énergie électrique ou ondulatoireDurcissement de surface par radiation particulaire

Abrégé

A balancing apparatus for a transition coupler, provided on an upper end surface of a transition coupler (1), comprising, arranged on the transition coupler (1), a rotary shaft (2), a rotary rod (4), and a top base (7). The rotary rod (4) comprises an upper end plate (11) and a lower end plate (12). A ramp protrusion (13) is arranged between the upper end plate (11) and the lower end plate (12). The ramp protrusion (13) is located on a side of the lower end plate (12). The ramp protrusion (13) is a piece of protruding structure. With reference to the upper end plate (11) and the lower end plate (12) of the rotary rod (4), the ramp protrusion (13) in the vertical direction is a structure inclined outward from the rotary rod, one extremity of the rotary rod (4) is mounted onto the rotary shaft, the other extremity of the rotary rod (4) is mounted with a pin shaft (5), an eyelet bolt (6) is also mounted onto the pin shaft (5), and, the rotary rod (4) is allowed to rotate around the rotary shaft (2) and is pivotally connected to the eyelet bolt (6) via the pin shaft (5). A through hole is provided on the top base (7). The eyelet bolt (6) runs through the through hole of the top base (7). A nut (9) is fixedly mounted at a distal extremity of the eyelet bolt (6). A spring (10) is arranged between the nut (9) and the through hole of the top base (7). The diameter of the spring (10) is greater than the diameter of the through hole of the top base (7). The apparatus can effectively prevent the phenomenon of a "bent head" found in a transition coupler when coupling car-couplers, thus allowing the transition coupler to be kept horizontal when mounted.

Classes IPC  ?

• B61G 5/04 - Couplages non prévus ailleurs pour apparier des couplages de types différents, p. ex. attelages de transition

Abrégé

Disclosed is a movable loading machine with a twin telescopic boom structure, comprising a head wagon (1) and a tail wagon (2), wherein the tail wagon (2) is connected to the head wagon (1) via a traction pull rod, a twin telescopic boom (4) and a dual-stage triple-channel forked hopper (3) are mounted on the head wagon (1), the twin telescopic boom (4) is a main wagon loading boom (41) and an auxiliary wagon loading boom (42) mounted in parallel, the main wagon loading boom (41) and the auxiliary wagon loading boom (42) both being booms with a telescopic function, the dual-stage triple-channel forked hopper (3) comprises an upper-stage forked hopper (31) and a lower-stage forked hopper (32), the upper-stage forked hopper (31) and the lower-stage forked hopper (32) both have three channels, namely a main wagon loading channel (33), an auxiliary wagon loading channel (34) and a reject recovery channel (35), and the main wagon loading channel (33) is connected to the main wagon loading boom (41) and the auxiliary wagon loading channel (34) is connected to the auxiliary wagon loading boom (42). The present invention can continuously meter and load bulk freight into a box of an open wagon and can meet the conditions of use of electrified railway depots, making it suitable for electrified railways with overhead lines.

Classes IPC  ?

• B65G 67/04 - Chargement des véhicules terrestres
• B65G 67/22 - Chargement des véhicules en mouvement

Abrégé

An opening/closing mechanism having a self-locking device, the opening/closing mechanism comprising a bottom plate (1), a fairing (2), a fairing support arm (3), and a power source push cylinder (4); the bottom plate (1) is provided with a rotating shaft (5), one end of the fairing support arm (3) is sleeved on the rotating shaft (5), and the other end is connected to the fairing (2) by means of a fairing mount (6); the fairing (2) is provided with a closed-state limit stop (7), and an open-state limit stop (8) is arranged between the fairing support arm (3) and the fairing mount (6); a locking device (9) is arranged between the fairing support arm (3) and the power source push cylinder (4), one end of said locking device (9) can move within the sliding groove of the fairing support arm (3), and the other end is mounted on the power source push cylinder (4). The opening/closing mechanism has a simple and reliable structure, is low cost and highly stable, and is easy to maintain; a power source is used for opening and closing the opening/closing mechanism and mechanical self-locking is achieved by means of "dead points"; locking the opening/closing mechanism holds same in a given state without requiring an additional power source.

Classes IPC  ?

• B61D 17/02 - Parties constitutives structurales du corps des véhicules réduisant la résistance de l'air par modification du profil

Abrégé

A system and a method for parallel power supply control for auxiliary converters of a motor train unit in the presence of interconnecting lines. The system comprises multiple three-phase inverter modules. The multiple three-phase inverter modules are in parallel connection with each other. Any two-phase circuit of a three-phase inverter module is separately in parallel connection with a corresponding two-phase circuit of a three-phase inverter module adjacent to the three-phase inverter module by using a connecting line module. The connecting line module is connected to a control system. The three-phase inverter modules are also connected to the control system. The three-phase lines of the three-phase inverter modules are all provided with switches. Less interconnecting lines are used, and any two phases of the three-phase inverter modules are separately in parallel connection, and therefore, stable power supply is achieved by balancing currents of any two phases of the three-phase circuits, and the system reliability is improved.

Classes IPC  ?

• H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p. ex. batterie tampon
• H02M 7/42 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité

Abrégé

The patent was disclosed a telescopic mechanism in a telescopic hitch buffer device for use in high speed electric multiple unit (EMU) trains. The telescopic mechanism comprises a compression rod (2) located inside a movable housing (1) of said hitch buffer device, one end of said compression rod (2) being connected to the movable housing (1), and a bearing connector (3) encasing the compression rod (2). A guiding barrel (4) is fixedly mounted outside the bearing connector (3). An extension/retraction driving mechanism (9) is provided between the guiding barrel (4) and the movable housing (1). A locking mechanism comprises protrusions (6) distributed at the other end of the compression rod (2), and grooves (7) in engagement with protrusions (6) on the inner wall of the bearing connector (3). One end of the compression rod (2) is connected to the movable housing (1) via a torsion spring (5), keeping the compression rod (2) and the bearing connector (3) in a locked state; an unlocking driving mechanism is provided on the outside of the movable housing (1), and is in an unlocked state when the protrusions (6) face the grooves (7), in which case, the movable housing (1) and the bearing connector (3) can slide relative to each other. Since the extension/retraction driving mechanism (9) is provided inside the movable housing (1), volume is reduced, good protection is provided for respective components, and the telescopic mechanism and the locking mechanism are relatively simple in structure, labor-saving, reliable in operation, and can bear relatively large loads.

Classes IPC  ?

• B61G 7/00 - Parties constitutives ou accessoires
• B61G 7/08 - Têtes d'attelage réglables
• B61G 9/20 - Organes de traction Parties constitutivesAccessoires
• B61G 5/00 - Couplages non prévus ailleurs
• B61G 11/18 - Tampons Parties constitutives

Abrégé

The present invention provides a method and a system for matching a virtual vehicle sample of a railway vehicle. The method comprises: calling part of models, materials and/or colors of a virtual vehicle sample according to an actual demand; and replacing the part of models, materials and/or colors of the virtual vehicle sample according to the actual demand, and building a new virtual vehicle sample. By using the method and the system for matching a virtual vehicle sample of a railway vehicle provided in the present invention, part of models of the virtual vehicle sample can be replaced in real time, and materials and colors of the sample can also be replaced in real time, and components of an existing virtual vehicle sample can be repeatedly used, thereby reducing production and modification periods of a virtual vehicle sample.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur

Abrégé

A natural gas internal combustion powered tractor and a railway vehicle. The natural gas internal combustion powered tractor comprises a compartment (1), a natural gas engine (6), a natural gas storage tank (2), and a transmission apparatus (9). The compartment is provided with a cab (3), an electric room (4), and a power room (5) disposed sequentially from front to back. The natural gas engine (6) and the transmission apparatus (9) are disposed in the power room (5). A power output end of the natural gas engine is connected to a power input end of the transmission apparatus. The natural gas storage tank (2) is fixed to a top of the compartment by using a fixing frame (8). A gas outlet of the natural gas storage tank (2) communicates with a gas inlet of the natural gas engine through a communicating pipe. In the present invention, a natural gas engine is disposed in a tractor and the natural gas engine is used as a power source of the tractor, the excessive dependence of an existing railway vehicle of an internal combustion powered vehicle group on a petroleum resource can be effectively reduced, and the pollution of the vehicle to the atmospheric environment can be effectively reduced.

Classes IPC  ?

• B61C 5/00 - Locomotives ou automotrices à moteurs à combustion interne ou turbines à gaz

Abrégé

Disclosed is a carriage body for a multiple unit train, the carriage body comprising: an undercarriage (10) and a power system module mounted in a suspended manner below the undercarriage (10), wherein a servicing opening (11) for facilitating servicing of the power system module is provided on the undercarriage (10), and passenger compartment floorboards (12) cover a top face of the undercarriage (10) and surround the servicing opening (11), and further comprising a servicing door (2) used for blocking the servicing opening (11), the servicing door (2) comprising a top panel (21), a reinforcement panel (22) and a sound-insulation panel (23), which is used for sound-proofing, which are provided successively from top to bottom, the top panel (21), the reinforcement panel (22) and the sound-insulation panel (23) being fixedly connected as one piece; the periphery of the top panel (21) engages with the passenger compartment floorboards (12); and the top panel (21) is detachably yet fixedly connected onto the passenger compartment floorboards (12) and/or the undercarriage (10). The carriage body for a multiple unit train can be conveniently opened during maintenance, and not only can the servicing opening be reliably blocked during normal operation, but the bearing strength of the servicing door is also improved, the safety, sealing, and sound-proofing effects are good, and noise transmitted from the power system module to the passenger compartments can be effectively reduced.

Classes IPC  ?

• B61D 17/10 - Planchers

Abrégé

An obstacle removing and energy absorbing device provided with an obstacle removing beam (6) and a bumper cross-beam (15) which are oppositely arranged, an energy-absorbing tube assembly with an energy-absorbing tube (9) is fixedly connected between the obstacle removing beam (6) and the bumper cross-beam (15), a mounting base (8) is fixedly connected with one end of the energy-absorbing tube (9), a crushing support (13) is threaded onto the other end of the energy-absorbing tube (9), the crushing support (13) is provided with a variable-diameter through-hole, a crushing-convex portion (20) is provided in the variable-diameter through-hole, a concave portion (21) matched with the crushing-convex portion (20) is arranged at an end portion where the energy-absorbing tube (9) is penetrated into the crushing support (13), the mounting base (8) is fixedly connected with the obstacle removing beam (6), the crushing support (13) is fixedly connected with the bumper cross-beam (15).

Classes IPC  ?

• B61D 15/06 - Wagons de chocAménagements ou structure des véhicules ferroviaires pour les protéger en cas de collision
• B61F 19/04 - Tampons ou dispositifs similaires contre les collisions
• B61D 17/06 - Parois d'extrémités

Abrégé

The present invention provides a bogie for a railway vehicle, and the railway vehicle. The bogie for the railway vehicle comprises a wheel set and a framework. Two ends of the wheel set are respectively provided with a shaft box. The framework is connected to the shaft boxes. Magneto-rheological adjustable rigidity spiral springs are vertically disposed between the framework and the shaft boxes. By means of the present invention, riding comfort and safety of a railway vehicle can be improved.

Classes IPC  ?

• B61F 5/30 - Boîtes d'essieux montées mobiles sur ressorts dans le châssis des véhicules ou des bogies
• B61F 5/24 - Moyens pour amortir ou minimiser les mouvements de roulis, lacet, galop ou tangage des châssis
• B61F 5/04 - Supports ou montages de la traverse danseuse du bogie
• B61F 5/02 - Aménagements permettant de limiter les mouvements transversaux relatifs entre le châssis du véhicule ou la traverse danseuse et le bogieLiaisons entre châssis et bogies

Abrégé

A telescoping railway vehicle head and railway vehicle, the head comprising: a telescoping front end (1) of the head, a head body (4) behind, and an internal telescoping frame (3). The telescoping front end (1) of the head comprises multiple centipede-like unit sections (1a, 1b, 1c, 1d, 1e, 1f, 1g) connected in a head-to-tail manner and corresponding connecting rods (2a, 2b, 2c, 2d, 2e, 2f, 2g) fixedly disposed in the unit sections (1a, 1b, 1c, 1d, 1e, 1f, 1g). The telescoping frame (3) comprises several swing rods (3a) and swing shafts (3b), the swing rods (3a) are rotationally connected in a head-to-tail manner via the swing shafts (3b) to form a telescoping diamond-shaped frame in the longitudinal direction of the head. The telescoping frame (3) drives the connecting rods (2a, 2b, 2c, 2d, 2e, 2f, 2g) together with the centipede-like unit sections (1a, 1b, 1c, 1d, 1e, 1f, 1g) to shift back and forth in the longitudinal direction of the head, thus changing the aerodynamic resistance of the head by driving the telescoping front end (1) of the head. A railway vehicle comprises a vehicle body, and telescoping heads connected to the front and back of the vehicle body. The combined aerodynamic resistance of the front and the back is changed by driving the telescoping front end (1) of the head at the front and the back of the vehicle body.

Classes IPC  ?

• B61D 17/02 - Parties constitutives structurales du corps des véhicules réduisant la résistance de l'air par modification du profil

Abrégé

A bogie of a rail vehicle comprises: two wheels (51) set one after the other, axle boxes (52) fixed at both ends of the axles of the wheels respectively, a frame (50) provided on the two axle boxes on the same side, and a mounting plate (53) for a collector. The two ends of the collector mounting plate are fixed respectively at the two axle boxes on the same side. The collector is provided on the collector mounting plate. The bogie of rail vehicle provided by the present invention efficiently reduces the displacement of the collector relative to the third track in each direction during the operation, and reduces the vibration and impaction of the collector, by the ways of fixing the collector on the axle boxes so as to enable the collector and the axle boxes to have the same state of motion.

Classes IPC  ?

• B61F 5/26 - Montage ou fixation des boîtes d'essieux sur les châssis des véhicules ou des bogies
• B60L 5/39 - Collecteurs de courant pour lignes d'alimentation en énergie sur les véhicules propulsés électriquement pour collecter le courant sur un rail conducteur sur un troisième rail

Abrégé

A device for detecting the air tightness of a backup brake system of a high-speed motor train unit, comprising a pressure gauge (101) and a connecting pipe (102). A first end of the connecting pipe (102) is connected to the pressure gauge (101), and a second end of the connecting pipe (102) is provided with two ports, wherein at least one port is provided with a cutoff switch thereon (103). Also provided are a system and method for detecting the air tightness of a backup brake system of a high-speed motor train unit. The detection device, system and method can simplify the detection process, improve the detection efficiency and accuracy, and reduce the cost of detection.

Classes IPC  ?

• G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour raccords ou joints d'étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes

Abrégé

A power supply device (10) for a hybrid railway vehicle, a power supply system including the power supply device (10) and the railway vehicle including the power supply system. The power supply device (10) comprises a super capacitor (101) and a storage battery bank (102). The super capacitor (101) is connected in parallel with the storage battery bank (102). The super capacitor (101) and the storage battery bank (102) are both connected to the power supply system in the vehicle, thereby providing a power supply voltage source for the power supply system in the vehicle in a state that a contact network is separated from the power supply system of the vehicle. The power supply device (10) is characterized in that the super capacitor (101) and the storage battery bank (102) are connected in parallel, so that the electric energy output by both the super capacitor (101) and the storage battery bank (102) serves as the power supply voltage source for the power supply system together, and provides power to the traction motor (50) of the vehicle through the power supply system when the contact network is separated from the power supply system or the contact network has a power failure. Hence the electric energy required for driving the vehicle to run can be continuously output for a long time, therefore enabling safe running of the vehicle.

Classes IPC  ?

• B60L 9/00 - Propulsion électrique par source d'énergie extérieure au véhicule
• B60L 5/18 - Collecteurs de courant pour lignes d'alimentation en énergie sur les véhicules propulsés électriquement utilisant des collecteurs en forme d'arc en contact avec le câble du trolley

Abrégé

A water supply system for a railway vehicle comprises: a water tank (21) provided below a vehicle chassis (20), a water pumping device (22), a water use apparatus (23) provided above the vehicle chassis, a control module, and an intermediate water tank (24) provided above the water use apparatus. An acquisition device (25) is disposed in the intermediate water tank. A water output pipe of the water tank is in communication with the water pumping device. An output end of the water pumping device is in communication with the intermediate water tank through a water supply pipeline (3), and a check valve (31) for preventing the water in the intermediate water tank from flowing back to the water pumping device is disposed on the water supply pipeline. A branch pipeline (32) for supplying water to the water use apparatus is connected to the water supply pipeline, and the end of the branch pipeline is connected to a drain pipe (4). The control module is connected to the acquisition device and the water pumping device respectively, so as to start the water pumping device when the value of an obtained liquid level signal is less than a preset value and turn off the water pumping device after a preset duration. The water supply system for a railway vehicle avoids pipeline leakage incurred by an excessive system pressure, and eliminates a hidden danger that excessive water filling caused by the pressure sensor failure results in pipeline cracking, thereby improving the operational reliability of the system.

Classes IPC  ?

• B61K 11/00 - Maintenance particulière aux locomotives, p. ex. remplissage ou vidange aux dépôts de l'eau, du sable ou autres matériaux
• B61D 35/00 - Installations sanitaires

Abrégé

A troubleshooting and energy absorbing device and a leading car of a motor train unit. The troubleshooting and energy absorbing device is provided with a troubleshooting beam (6) and a buffer crossbeam (15) that are arranged in opposite directions; an energy absorbing tube assembly is fixedly connected between the troubleshooting beam (6) and the buffer crossbeam (15) and is provided with an energy absorbing tube (9); one end of the energy absorbing tube (9) is fixedly connected to a mounting seat (8), and a crushing support (13) is penetratingly mounted at the other end of the energy absorbing tube (9). The crushing support (13) is provided with a reducing through hole; a crushing protruded portion (20) is arranged in the reducing through hole. A recess portion (21) matched with the crushing protruded portion (20) is arranged at an end portion, penetrating into the crushing support (13), of the energy absorbing tube (9); the mounting seat (8) is fixedly connected to the troubleshooting beam (6); the crushing support (13) is fixedly connected to the buffer crossbeam (15). Due to the arrangement of the energy absorbing tube assembly, when the troubleshooting and energy absorbing device collides with an obstacle and produces high impact, the energy absorbing tube (9) of the energy absorbing tube assembly can absorb a great deal of impact energy by generating crushing deformation, so as to reduce the impact on a car body, thereby guaranteeing the stability and the safety of the car in running.

Classes IPC  ?

• B61F 19/04 - Tampons ou dispositifs similaires contre les collisions

Abrégé

Provided is a powered bogie for a motor train unit, comprising a bogie, two groups of wheelsets disposed below the bogie, and a bearing beam disposed above the bogie; a drive gear box is reeved on the axle of each group of wheelset; the power output shaft of the drive gear box is fixedly connected to the wheel of the corresponding wheelset; the bogie is fixedly connected to a rigid drive motor mounting base; the rigid drive motor mounting base is rigidly and fixedly connected to a drive motor; and the drive motor is in a transmission connection with the power input shaft of the drive gear box. In the above solution, the bogie is firstly fixedly connected to the rigid drive motor mounting base, and then the rigid drive motor mounting base is rigidly and fixedly connected to the drive motor; thus the structure of the bogie is simple, facilitating cost reduction; furthermore, the rigid drive motor mounting base has higher fatigue strength, thus overcoming the defects of low fatigue strength and tendency of failure in existing motor hoisting bases; and moreover, the manufacturing process of the rigid drive motor mounting base is also improved.

Classes IPC  ?

• B61C 9/50 - Systèmes de transmission des locomotives ou des automotrices pour propulsion par moteur électrique avec moteurs supportés par le châssis des véhicules et les essieux moteurs, p. ex. suspension sur essieux ou par le nez dans les bogies
• B61F 5/02 - Aménagements permettant de limiter les mouvements transversaux relatifs entre le châssis du véhicule ou la traverse danseuse et le bogieLiaisons entre châssis et bogies
• B61F 5/30 - Boîtes d'essieux montées mobiles sur ressorts dans le châssis des véhicules ou des bogies

Abrégé

A fixture supporting plate, a forward assembly welding fixture and a method for welding an arc sectional material are disclosed. The supporting height at the edge of the fixture supporting plate is greater than the height at the corresponding position of the sectional material to be supported. The forward assembly welding fixture includes a deformable supporting plate (243) formed by the supporting plate which is adjacent to a resisting end clamp (206) and/or a locating end clamp (205). The method for welding the arc sectional material adopts above-mentioned forward assembly welding fixture during the welding process. The fixture supporting plate, the forward assembly welding fixture and the method for welding the arc sectional material can enhance the pressing-clipping effect of the fixture pressing clamp, and can control effectively the misalignment problem at the position of the butt joint groove of the long seam of the arc sectional material before welding without adjusting groove misalignment. The production efficiency of the long longitudinal seam arc sectional material is greatly improved.

Classes IPC  ?

• B23K 37/04 - Dispositifs ou procédés auxiliaires non spécialement adaptés à un procédé couvert par un seul des autres groupes principaux de la présente sous-classe pour maintenir ou mettre en position les pièces
• B23K 31/02 - Procédés relevant de la présente sous-classe, spécialement adaptés à des objets ou des buts particuliers, mais non couverts par un seul des groupes principaux relatifs au brasage ou au soudage