When a vehicle 10 is stopped by applying braking force to the vehicle 10, a braking control device 50 executes stop control for controlling the braking force so as to suppress any change in the orientation of the vehicle 10 accompanying the stop. The braking control device 50 comprises an instruction value acquisition unit M11 that acquires an instruction value related to occupant comfort when the vehicle 10 stops. The instruction value is set by an operation of an operation element 71 by an occupant of the vehicle 10. The braking control device 50 comprises a request value calculation unit M12 that, in accordance with the instruction value, calculates a demand value for the vehicle body deceleration immediately before the vehicle 10 stops. The braking control device 50 comprises a setting unit M14 that sets a degree of suppression for the change in the orientation of the vehicle 10 caused by execution of the stop control on the basis of the demand value.
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
A braking control device 70 comprises: a target setting unit 115 that, when stopping a vehicle 10, performs an at-vehicle-stop target setting process which includes decreasing a target regenerative braking force and increasing a target frictional braking force; a correction unit 117 that corrects the target frictional braking force so that a deviation between a target value and an actual value of deceleration of the vehicle 10 is reduced; and a stop control unit 119 that, when the at-vehicle-stop target setting process is being performed, stops the vehicle 10 by operating a regenerative braking unit 20 on the basis of the target regenerative braking force and operating a friction braking unit 40 on the basis of a corrected target frictional braking force.
A motor control device includes a control unit that performs sensorless control of a brushless motor having three phases, and a determination unit that determines presence or absence of step-out of the brushless motor by comparing a deviation hV between a determination voltage Vqj calculated from a rotational speed w of the brushless motor and an estimated q-axis instruction voltage Vqc of the sensorless control with a determination threshold value Hs. The determination unit sets a calculation map Zhs for calculating the determination threshold value Hs to be larger than a characteristic Zes of a first error Es included in the sensorless control in a state in which the brushless motor is not out of step. For example, the determination unit sets the calculation map Zhs such that the determination threshold value Hs is determined to be larger the higher the rotational speed w.
H02P 6/18 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position
H02P 8/38 - Protection contre les défauts, p. ex. contre l'échauffement excessif ou le décrochageIndication des défauts le défaut consistant en un décrochage
A braking control system 60 comprises: a first braking ECU 70 that operates a first hydraulic braking device 26 and a first electric parking actuator 31; a second braking ECU 80 that operates a second hydraulic braking device 27; and a redundant ECU 90 that operates a second electric parking actuator 32. The second braking ECU 80 transmits communication possibility information relating to whether or not communication with the first braking ECU 70 is normal, to the redundant ECU 90. The redundant ECU 90 determines that an abnormality has occurred in the first braking ECU 70 if both the received communication possibility information is information indicating that communication between the second braking ECU 80 and the first braking ECU 70 is not normal, and communication between the redundant ECU 90 and the first braking ECU 70 is not normal.
B60T 8/96 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant des moyens sensibles au fonctionnement défectueux, c.-à-d. des moyens pour détecter et indiquer un fonctionnement défectueux des moyens sensibles à la condition de vitesse à action corrective automatique sur des moyens de commande sensibles à la vitesse
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
A braking control system 60 includes: a first braking ECU 70 for operating a first hydraulic braking device 26 and a first electric parking actuator 31; and a redundant ECU 90 for operating a second electric parking actuator 32 without taking a hydraulic braking device 25 to be a controlled object. The first braking ECU 70 and the redundant ECU 90 are capable of receiving a parking brake operation request via an in-vehicle network. In a case in which the first braking ECU 70 is normal, the first braking ECU 70 operates the first electric parking actuator 31 on the basis of the parking brake operation request. In a case in which an abnormality is occurring in the first braking ECU 70, the redundant ECU 90 operates the second electric parking actuator 32 on the basis of the parking brake operation request.
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
B60T 8/96 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant des moyens sensibles au fonctionnement défectueux, c.-à-d. des moyens pour détecter et indiquer un fonctionnement défectueux des moyens sensibles à la condition de vitesse à action corrective automatique sur des moyens de commande sensibles à la vitesse
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
A braking control system 60 includes a first braking ECU 70 for operating a first electric parking actuator 31, and a redundant ECU 90 for operating a second electric parking actuator 32. When the first braking ECU 70 receives a parking brake operation request via a global communication line 201, the first braking ECU 70 operates the first electric parking actuator 31 on the basis of the parking brake operation request, and transmits an operation instruction corresponding to the parking brake operation request to the redundant ECU 90 via a braking communication line 61. The redundant ECU 90 operates the second electric parking actuator 32 on the basis of the operation instruction received via the braking communication line 61 when the first braking ECU 70 is normal, and operates the second electric parking actuator 32 on the basis of a parking brake operation request received via a second global communication line 202 when abnormality occurs in the first braking ECU 70.
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
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
An electric braking device 10 for generating braking force in a vehicle by pressing, against a disk rotor 12, a brake pad 11B that moves linearly according to rotational movement of a rotor 18A of an electric motor 18 comprises a control unit 30 that functions as a motor torque derivation unit for deriving motor torque corresponding to the current value of the electric motor 18, functions as an inertia torque derivation unit for deriving an inertia torque acting on the rotor 18A in accordance with a change in the rotation speed of the electric motor 18, and functions as an estimation unit for estimating a start position of contact by the brake pad 11B with the disk rotor 12 on the basis of an estimated load torque of the electric motor 18 obtained by subtracting the inertia torque from the motor torque.
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
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 121/24 - Électrique ou magnétique utilisant des moteurs
A braking system 200 is applied to a vehicle comprising a front wheel cylinder 31F and a rear wheel cylinder 31R of smaller volume than the front wheel cylinder 31F. The braking system 200 comprises: an electric cylinder 60; a system separation cylinder 70; a connecting channel 551 joining a first output port 62b of the electric cylinder 60 and a first chamber R1 of the system separation cylinder 70; a front wheel supply channel 552 which is connected to the connecting channel 551 and which supplies brake fluid discharged from the first output port 62b to the front wheel cylinder 31F; and a rear wheel supply channel 553 that supplies brake fluid discharged from the second chamber R2 of the system separation cylinder 70 to the rear wheel cylinder 31R.
An electric braking device includes a transmission mechanism that transmits rotation of a motor shaft member in an electric motor. The electric braking device includes an actuator section that applies a braking force to a wheel by pressing a friction member against a rotary body. The actuator section moves the friction member in response to rotation of the electric motor transmitted by the transmission mechanism. The electric braking device includes a rotation stop mechanism that stops rotation in a direction of reducing the braking force among rotational directions of the electric motor. The electric braking device includes a motor bracket 81 as a member to which the electric motor is attached. The rotation stop mechanism is further attached to the motor bracket.
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
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
F16D 55/226 - 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 les organes de freinage étant des patins de freins dans lesquels l'organe d'actionnement commun se déplace axialement
F16D 121/24 - Électrique ou magnétique utilisant des moteurs
An electronic substrate device according to an embodiment of the present invention includes: an insulating material having a first outer surface and a second outer surface, the second outer surface facing in a direction different from a vertical upper direction; a first electronic component disposed on the first outer surface and generating heat by being energized; a second electronic component disposed on the second outer surface; a braze; a terminal provided on the first outer surface and joined to the first electronic component; a pad provided on the second outer surface and joined to the second electronic component by the braze; a via that penetrates the insulating material; first wiring that connects the terminal and the via; and second wiring that connects the pad and the via. The electronic substrate device comprises a pattern configured so that the second electronic component is separated from the pad due to the weight of the second electronic component in response to melting of the braze, whereby energization to the first electronic component is stopped.
H01H 37/76 - Élément de contact actionné par fusion d'une matière fusible, actionné par combustion d'une matière combustible ou par explosion d'une matière explosive
B60T 8/34 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse
An electric brake device has: a housing that stores a load sensor and holds a rotational section of a linear motion conversion mechanism to be rotatable; and a case assembled to the housing. The case holds a transmission mechanism, which transmits rotary motion of an electric motor, to be rotatable, and the rotational section of the linear motion conversion mechanism mechanically meshes with the transmission mechanism. In such an electric brake device, a first terminal that has an annular shape and is arranged around a rotation axis of the rotational section of the linear motion conversion mechanism is installed on the load sensor, and a second terminal electrically connected to the first terminal by contact with the first terminal is installed in the case.
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 55/226 - 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 les organes de freinage étant des patins de freins dans lesquels l'organe d'actionnement commun se déplace axialement
F16D 66/00 - Dispositions pour la surveillance des conditions de fonctionnement des freins, p. ex. de l'usure ou de la température
F16D 121/24 - Électrique ou magnétique utilisant des moteurs
A braking control device (70) comprises a control unit (125) configured so as to execute: distribution adjustment control for adjusting a distribution ratio that is the ratio of a first regenerative braking torque to the total regenerative braking torque; and stop-time braking control for controlling a first power unit (21), a second power unit (22), and a friction braking unit (40) during braking of a vehicle (10), thereby increasing the friction braking torque while reducing the total regenerative braking torque to 0 (zero) until the vehicle (10) stops. In the distribution adjustment control, the control unit (125) is further configured so as to make the distribution ratio when the total regenerative braking torque is reduced in conjunction with the execution of the stop-time braking control smaller than the distribution ratio before the start of the stop-time braking control.
B60L 7/18 - Freinage dynamo-électrique par récupération commandant l'effet de freinage
B60L 7/24 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
A braking control device (70) comprises a control unit (125) configured to perform vehicle-stopping braking control which coordinates a power unit (20) and a friction braking unit (40) during braking of a vehicle (10) so that, until the vehicle (10) stops, a regenerative braking torque is decreased to 0 (zero) while a frictional braking torque is increased. The control unit (125) is further configured to, in the vehicle-stopping braking control, cause the rate of increase in an axle torque at the time point of sign reversal of the axle torque to be smaller than the rate of change in the axle torque at a reference time point prior to the time point of sign reversal.
B60L 7/18 - Freinage dynamo-électrique par récupération commandant l'effet de freinage
B60L 7/24 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
14.
ELECTRONIC SUBSTRATE DEVICE AND BRAKE CONTROL DEVICE
This electronic substrate device according to an embodiment includes, as an example: an insulating member having a first outer surface and a second outer surface located on the opposite side to the first outer surface; a first conductor pattern provided on the insulating member; a first via penetrating the insulating member, said first via being connected to the first conductor pattern and electrically connected to a power supply through the first conductor pattern; a second conductor pattern provided on the insulating member; a second via penetrating the insulating member, said second via being connected to the second conductor pattern and electrically connected to a load through the second conductor pattern; and a fuse pattern that is provided on the first outer surface, that is connected to the first via and the second via, that is separated from the first outer surface by the difference in thermal expansion with the insulating member at or above a threshold temperature, and that interrupts the current between the power supply and the load in the event of a disconnection.
H05K 1/16 - Circuits imprimés comprenant des composants électriques imprimés incorporés, p. ex. une résistance, un condensateur, une inductance imprimés
B60T 8/34 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse
H01H 85/046 - Fusibles sous forme de circuits imprimés
H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés
A vehicle 10 comprises: a power unit 20 which is configured to be able to apply a regenerative braking torque and a driving torque to an axle 14; a regeneration control unit 103 which controls the power unit 20 on the basis of a regenerative braking torque instruction value; and a drive control unit 101 which controls the power unit 20 on the basis of a driving torque instruction value. A brake control device 70 of the vehicle 10 functions as: a determination unit 125 which determines whether or not the absolute value of the angular acceleration of the axle 14 is less than or equal to a determination angular acceleration; and a control unit 127 which executes axle torque control in cooperation with the regeneration control unit 103 and the drive control unit 101 such that, when the vehicle 10 is stopped by the generation of braking force, the positive/negative of the axle torque is reversed from a point onwards at which it is determined that the absolute value of the angular acceleration of the axle 14 is less than or equal to the determination angle acceleration.
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60L 7/18 - Freinage dynamo-électrique par récupération commandant l'effet de freinage
B60L 7/24 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
According to the present invention, a ratchet gear (RCH) has, on a tooth surface on the first direction (Rvs) side relative to a tooth tip (HSK), a surface (HTM) to be contacted which is curved from the tooth tip (HSK) toward the first direction (Rvs) side, while a claw member (TSU), in a state of being engaged with the ratchet gear (RCH), abuts on the contact surface (HTM) and receives, from the ratchet gear (RCH), a force (F) including a component (Fts) in the approach direction.
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
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 121/24 - Électrique ou magnétique utilisant des moteurs
F16D 125/48 - Éléments rotatifs en contact mutuel avec des axes parallèles et fixes, p. ex. engrenages cylindriques
F16D 127/06 - Mécanismes de verrouillage, p. ex. agissant sur des actionneurs, des mécanismes de desserrage ou de transmission de force
An electric brake device includes an actuator section. The actuator section applies a braking force to a wheel according to rotation of an electric motor transmitted by a transmission mechanism. The electric brake device includes a circuit section that controls the actuator section. The electric brake device includes a rotation angle sensor configured by a detected section attached to a motor shaft member and a detecting section provided to the circuit section. The electric brake device includes a partition wall that defines a first space in which the transmission mechanism is arranged and a second space in which the circuit section is arranged. The partition wall is provided with a through-hole. The detected section is arranged in the through-hole.
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 121/24 - Électrique ou magnétique utilisant des moteurs
H02K 11/215 - Dispositifs utilisant un effet magnétique, p. ex. des éléments à effet Hall ou magnéto-résistifs
H02K 11/30 - Association structurelle à des circuits de commande ou à des circuits d’entraînement
Between a nut of a linear-motion converting mechanism that converts rotation of an electric motor into linear motion and a piston is interposed a connecting member that mediates transmission of pressing force between the nut and the piston. The nut is installed to be pivotable with respect to the connecting member, and the connecting member is installed to be radially movable with respect to the piston.
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
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
19.
CROSSWIND DETERMINATION DEVICE AND CROSSWIND DETERMINATION METHOD
This crosswind determination device comprises: a calculation unit (121) configured to calculate, on the basis of the lateral acceleration of a vehicle (10) and the yaw rate of the vehicle (10), a crosswind estimation value that is a value indicating the strength of a crosswind striking the vehicle (10); a correction unit (122) configured to correct the crosswind estimation value on the basis of a vehicle body speed; and a processing unit (123) configured to execute processing based on the crosswind estimation value corrected by the correction unit (122).
B60W 40/02 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes
B60W 30/02 - Commande de la stabilité dynamique du véhicule
A case according to an embodiment includes: a metal plate having a first surface facing an internal component that generates heat, a second surface located on the opposite side of the first surface, and an outer peripheral surface connected to outer peripheral edges of the first and second surfaces, the metal plate being constructed to be thermally connected to the component; and a resin casing member integrated with the metal plate and having a contact surface that contacts the second surface, and an inner peripheral surface that encloses the outer peripheral surface, and is partially in contact with and partially spaced apart from the outer peripheral surface.
An electric braking device (1) comprises: a second flange part (15) that protrudes in a rotation radial direction of a rotating member (12) outside a cylinder (20); and an elastic body (16) that is provided between a bottom part (21) of the cylinder (20) and the second flange part (15), and that separates the cylinder (20) and the second flange part (15) by elastic force during non-braking.
F16D 65/16 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein
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
A road surface determining device 80 comprises: a deriving unit 81 that derives an estimated vehicle body speed on the basis of at least one of the wheel speed of a front wheel 12F and the wheel speed of a rear wheel 12R; a first determining unit 82 that determines whether or not a first condition indicating that the wheel acceleration of the front wheel 12F has changed by a first determination value or more is satisfied; a second determining unit 83 that, after the first condition has been satisfied, determines whether or not a second condition indicating that the estimated vehicle body speed has continued to show an increasing trend for a predetermined measuring time is satisfied; a third determining unit 84 that, after the second condition has been satisfied, determines whether or not a third condition indicating that the wheel acceleration of the rear wheel 12R has changed by a second determination value or more is satisfied; and a road surface determining unit 85 that determines that the road surface on which a vehicle 10 is traveling is an undulating road when the first condition, the second condition, and the third condition are satisfied.
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
A control device 50 includes a control unit M19 that implements an ABS control for suppressing both the left and right wheels of a vehicle from being locked by adjusting the braking forces of both the left and right wheels. In the ABS control, the control unit M19 executes a cross processing of alternately switching between a right-wheel period in which the right wheel, of the left and right wheels, is the first wheel for increasing the braking force and the left wheel is the second wheel for adjusting the braking force in a range of less than the braking force of the first wheel, and a left-wheel period in which the left wheel is the first wheel and the right wheel is the second wheel, and executes a cross processing of increasing the braking force of the second wheel in both the left-wheel period and the right-wheel period.
B60T 8/1761 - Régulation des freins spécialement adaptée pour la prévention du dérapage excessif des roues pendant la décélération, p. ex. ABS en fonction de la dynamique de la roue ou du frein, p. ex. du dérapage de la roue, de l'accélération de la roue ou du taux de variation de la pression du fluide de frein
B60T 8/1764 - Régulation pendant le déplacement sur une surface comportant plusieurs coefficients de frottement, p. ex. mu différent entre les côtés gauche et droit
An acceleration calculation device calculates an estimated acceleration of a vehicle using a first acceleration and a second acceleration when both an acceleration sensor and a wheel speed sensor are normal. The acceleration calculation device calculates the estimated acceleration using only the first acceleration between the first acceleration and the second acceleration when the acceleration sensor is normal, and the wheel speed sensor is abnormal. The acceleration calculation device calculates the estimated acceleration using only the second acceleration between the first acceleration and the second acceleration when the acceleration sensor is abnormal, and the wheel speed sensor is normal.
An electric braking device is configured that, during assembly of a housing of a caliper section, to which a linear motion conversion mechanism and a load sensor are assembled, to a case, to which a transmission mechanism is assembled, a male terminal installed in the load sensor is inserted in a female terminal installed in the case after an engagement convex section provided to a screw shaft as a rotational section of the linear motion conversion mechanism is engaged with an engagement concave section provided to a third gear as a component of the transmission mechanism.
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 66/00 - Dispositions pour la surveillance des conditions de fonctionnement des freins, p. ex. de l'usure ou de la température
F16D 121/24 - Électrique ou magnétique utilisant des moteurs
A control device for a vehicle, a storage medium, and a control method are provided. The control device includes processing circuitry configured to receive a motion request of a vehicle from each of driver-assistance systems. The vehicle includes the driver-assistance systems. The processing circuitry is configured to select one of the received motion requests as an arbitration result, and output, based on the arbitration result, an instruction signal that is used to control an actuator of the vehicle, and vary the instruction signal over a predetermined period of time when the instruction signal switches as the motion request switches.
A control device for a vehicle, a storage medium, and a control method are provided. Processing circuitry is configured to receive a requested acceleration from a driver-assistance system of a vehicle and determine an initial acceleration. The initial acceleration is a starting point for modifying a vehicle acceleration toward the requested acceleration. The processing circuitry is configured to generate a transition acceleration that connects the initial acceleration to the requested acceleration and output, based on the transition acceleration, an instruction signal that is used to control an actuator of the vehicle.
This electric braking device (1) has a first curved surface on at least one of a pressing surface (14) of a linear motion part (11) and a pressed surface (32) of a piston (30), and has a second curved surface in a range in which a connection member (50) engaged with the first engagement part (31) and the second engagement part (13) engages with the first engagement part (31) so as to swing so that the linear motion axis of the piston (30) is inclined.
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
F16D 65/16 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein
A braking device (100) comprises: a hydraulic-pressure generating device (20) including an electric cylinder (51) having an electric motor; a braking actuator (70) having a retention valve (74); and a control device (200). The control device (200) is configured to derive a target rotation angle for the electric motor by feedback control based on the deviation between a servo-pressure detection value and a target servo pressure, and to drive the electric motor on the basis of the target rotation angle. The control device (200) is further configured so that in the situation where the braking actuator (70) is operated by braking control attendant on closure of the retention valve (74), the control device (200) lowers the feedback control gain compared to the situation where the braking actuator is not operated.
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
B60T 8/44 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse coopérant avec un servo-moteur associé à un maître-cylindre pour commander le relâchement ou la réapplication de la pression de freinage par une interaction avec le servo-moteur
B60T 13/13 - Systèmes utilisant un amplificateur combiné hydrauliquement à un maître cylindre avec une sortie hydraulique additionnelle reliant directement l'amplificateur au circuit de frein
B60T 13/18 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande du débit de sortie des pompes
An electric braking device includes a transmission mechanism including an input gear configured to input rotation of a motor shaft member and an output gear configured to be rotatable in response to rotation of the input gear and transmit the rotation to an actuator unit. The electric braking device includes a circuit unit including a circuit board and mounting components mounted on the circuit board. In the electric braking device, the circuit board and an electric motor are disposed such that a virtual plane parallel to the circuit board intersects an axial direction of the motor shaft member. In the electric braking device, the output gear is disposed so as to intersect a specific plane P2 that is a plane passing through the circuit unit among virtual planes parallel to the circuit board.
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
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
A driving assistance device executes an assistance control for assisting traveling of a vehicle by causing a vehicle body speed to track a target vehicle body speed through adjustment of a driving force and a braking force of the vehicle. The driving assistance device includes a target vehicle body speed setting unit configured to set the target vehicle body speed. The driving assistance device includes a disturbance detection unit configured to detect a disturbance part present on a travel path. The target vehicle body speed setting unit adjusts the target vehicle body speed according to an accelerating operation amount that is an operation amount of an accelerating operation member operated by a driver of the vehicle when the disturbance part is not detected, and does not reflect the accelerating operation amount on the target vehicle body speed when the disturbance part is detected.
A braking control device includes a fluid pump driven by an electric motor via a coupling part, a differential pressure valve provided in a fluid path connecting a discharge part and an intake part of the fluid pump, the differential pressure valve increasing a wheel pressure of a wheel cylinder by increasing a braking liquid discharged from the fluid pump to an output pressure, and a controller that drives the electric motor and the differential pressure valve. When a valve opening amount of the differential pressure valve is reduced in a state in which the electric motor is driven, the controller performs an appropriateness determination as to whether or not the coupling part is normal based on a change in a state quantity related to the electric motor.
The present invention addresses the problem of providing a brake caliper capable of stabilizing elastic force of a spring. A brake caliper (12) according to an embodiment of the present invention comprises: a brake pad (25); a support member (22) that supports the brake pad; a pad support (24) that has an interposition part (61) interposed between the brake pad and the support member and has a support plate (71) supported on a surface (41b) at the side opposite from a rotor (11); and a spring (26) that has an attachment part (81) attached to the brake pad, a contact part (92) in contact with the surface of the support plate, and an elastic part (91) provided between the attachment part and the contact part. The contact part is at a first position (P1) when the brake pad is separated from the rotor, the contact part is at a second position (P2) separated from the first position when the brake pad is in contact with the rotor, and the contact part is movably supported on the surface.
A wear determination system determines wear of a target wheel that is a steered wheel included in a vehicle. The wear determination system calculates a ground speed of the target wheel and a rotation speed of the target wheel in the same section where the vehicle is turning right or left, and calculates a curved-traveling wheel radius based on the ground speed and the rotation speed. The curved-traveling wheel radius is a dynamic loaded radius of the target wheel that corresponds to the vehicle turning right or left. The wear determination system determines wear of a shoulder portion of the target wheel based on the curved-traveling wheel radius.
B60W 40/12 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés à des paramètres du véhicule lui-même
35.
Reservoir tank and brake hydraulic pressure generator
As an example, a reservoir tank according to an embodiment includes: an upper case; a lower case coupled to the upper case; a partition wall extending from the upper case toward the lower case and separating, in a horizontal direction, first and second rooms which are included in a space inside the upper case and the lower case; and a partition member having a first wall covering the first room from below, and a second wall protruding upward from the first wall and being in contact with the partition wall. The partition wall includes a first slit opening to a lower edge of the partition wall and establishing communication between the first and second rooms, and at least an edge of the first slit and the second wall forming a first hole which establishes communication between the first and second rooms and which is positioned above the first wall.
In an electric cylinder device including a third gear that rotates by receiving rotation of an electric motor and a linear motion conversion mechanism that converts the rotation of the third gear into linear motion of a piston inside a cylinder, a nut, which is a linear motion portion of the linear motion conversion mechanism, and the piston are connected in a state in which relative displacement in a radial direction is allowed.
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
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
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/14 - Pistons, tiges de piston ou liaisons piston-tige
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 121/24 - Électrique ou magnétique utilisant des moteurs
F16D 125/48 - Éléments rotatifs en contact mutuel avec des axes parallèles et fixes, p. ex. engrenages cylindriques
F16D 131/00 - Agencement global des actionneurs ou de leurs éléments, p. ex. construction modulaire
F16H 25/10 - Transmissions comportant essentiellement et uniquement des systèmes came et galet ou des mécanismes à vis et écrous pour convertir un mouvement rotatif en mouvement alternatif et vice versa à course réglable
37.
DRIVING ASSISTANCE DEVICE AND DRIVING ASSISTANCE METHOD
A driving assistance device (60) is provided with: a memory (101) that stores acceleration characteristics; a request derivation unit (103) that is configured to derive, on the basis of the acceleration characteristics, the acceleration of the vehicle (10) according to the operation amount of an operation member as a requested acceleration; and a command processing unit (105) that is configured to transmit a command value based on the requested acceleration to a driving device (20) and a braking device (30). The command processing unit (105) is further configured such that when the requested acceleration is included in the predetermined acceleration range, the command processing unit (105) derives a driving force command value and braking force command value so as to satisfy the requirements that the driving force command value and the braking force command value both be greater than 0 (zero) and that the difference between the driving force command value and the braking force command value be a value corresponding to the requested acceleration.
B60W 30/00 - Fonctions des systèmes d'aide à la conduite des véhicules routiers non liées à la commande d'un sous-ensemble particulier, p. ex. de systèmes comportant la commande conjuguée de plusieurs sous-ensembles du véhicule
A braking system 20 comprises: a pressure regulation unit 50 that generates a reference liquid pressure and also generates a rear wheel liquid pressure in accordance with the reference liquid pressure; a front wheel liquid pressure adjustment part 74 configured so as to be able to set the front wheel liquid pressure lower than the rear wheel liquid pressure when the reference liquid pressure is generated; and a control device 80 that controls a regeneration device 90, the pressure regulation unit 50, and the front wheel liquid pressure adjustment part 74. The control device 80 executes, when a vehicle braking force request value is reduced under a situation where the vehicle braking force request value is equal to or more than a first braking force, a first reduction process for reducing a regenerative braking force applied to front wheels FL, FR and holding the front wheel liquid pressure while reducing the rear wheel liquid pressure by reducing the reference liquid pressure.
A processing circuit executes a required flow rate derivation process M25 for deriving a required value of the flow rate of a brake fluid supplied to a first wheel cylinder as a first required flow rate Qwr, and deriving a required value of the flow rate of the brake fluid supplied to a second wheel cylinder as a second required flow rate Qwf, the required value of the flow rate of the brake fluid supplied to the first wheel cylinder being based on a map Mp1r, a first target wheel pressure Ptr, and the wheel pressure Pwr, and the required value of the flow rate of the brake fluid supplied to the second wheel cylinder being based on a first map Mp1f, a second target wheel pressure Ptf, and the wheel pressure Pwf. The processing circuit executes a plurality of processes M29, M31, M33 to increase the rotation speed of an electric motor 52 as the sum of the first required flow rate Qwr and the second required flow rate Qwf increases.
B60T 13/20 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande des moyens d'entraînement des pompes
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 13/122 - Systèmes utilisant à la fois un maître cylindre et un distributeurAssociation structurelle d'un maître cylindre avec un distributeur
B60T 17/02 - Aménagements des pompes ou compresseurs ou de leurs dispositifs de commande
A processing circuit according to the present invention executes: a request flow rate derivation process for deriving a second request flow rate Qwf based on a second wheel pressure, a second target wheel pressure Ptf, and a cylinder characteristic that indicates the relationship between the second wheel pressure and a supply amount of a brake fluid to a second wheel cylinder, and deriving a first request flow rate Qwr based on a first wheel pressure, a first target wheel pressure Ptr, and a cylinder characteristic that indicates the relationship between the first wheel pressure and a supply amount of the brake fluid to the first wheel cylinder; and an aperture adjustment process for adjusting an instructed aperture, which is an instruction value for the aperture of a first pressure adjustment valve 61, in consideration of the first request flow rate Qwr and the second request flow rate Qwf.
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 13/20 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande des moyens d'entraînement des pompes
B60T 13/122 - Systèmes utilisant à la fois un maître cylindre et un distributeurAssociation structurelle d'un maître cylindre avec un distributeur
In one example, a motor device according to an embodiment of the present invention comprises: a motor provided with an accommodating chamber and including a coil accommodated in the accommodating chamber and an output shaft which protrudes from the accommodating chamber and which can rotate about a rotation axis; a conductive support member; a planetary gear mechanism including a ring gear supported by the support member and provided around the rotation axis, a sun gear provided on the output shaft, and a planetary gear provided between the ring gear and the sun gear; at least one busbar unit including a second busbar joined, at a joining part located outside the accommodating chamber, to the coil or to a first busbar electrically connected to said coil; and at least one insulating recessed surface provided on the ring gear to define a recessed part where the joining part is accommodated.
In an electric cylinder device including a third gear that rotates by receiving rotation of an electric motor and a linear motion conversion mechanism that converts the rotation of the third gear into linear motion of a piston inside a cylinder, a nut, which is a linear motion portion of the linear motion conversion mechanism, and the piston are connected in a state in which relative displacement in a radial direction is allowed.
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
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
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/14 - Pistons, tiges de piston ou liaisons piston-tige
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 121/24 - Électrique ou magnétique utilisant des moteurs
F16D 125/48 - Éléments rotatifs en contact mutuel avec des axes parallèles et fixes, p. ex. engrenages cylindriques
F16D 131/00 - Agencement global des actionneurs ou de leurs éléments, p. ex. construction modulaire
F16H 25/10 - Transmissions comportant essentiellement et uniquement des systèmes came et galet ou des mécanismes à vis et écrous pour convertir un mouvement rotatif en mouvement alternatif et vice versa à course réglable
In an electric cylinder device including a third gear that rotates by receiving rotation of an electric motor and a linear motion conversion mechanism that converts the rotation of the third gear into linear motion of a piston inside a cylinder, a nut, which is a linear motion portion of the linear motion conversion mechanism, and the piston are connected in a state in which relative displacement in a radial direction is allowed.
F04B 9/02 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques
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
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
F04B 53/14 - Pistons, tiges de piston ou liaisons piston-tige
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 121/24 - Électrique ou magnétique utilisant des moteurs
F16D 125/48 - Éléments rotatifs en contact mutuel avec des axes parallèles et fixes, p. ex. engrenages cylindriques
F16D 131/00 - Agencement global des actionneurs ou de leurs éléments, p. ex. construction modulaire
F16H 25/10 - Transmissions comportant essentiellement et uniquement des systèmes came et galet ou des mécanismes à vis et écrous pour convertir un mouvement rotatif en mouvement alternatif et vice versa à course réglable
A braking control device (BC) is provided with: a specification unit (102) that specifies a wheel having a relatively small load among a plurality of wheels (W); and a control unit (103) that designates the wheel (W) specified to have a relatively small load by the specification unit (102) as a target wheel, and causes a wheel braking unit (8) corresponding to the target wheel to apply friction braking force to the target wheel in order to remove rust formed in the wheel braking unit (8).
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
A braking device 100 comprises: a pressurization unit 50 using a first electric motor 513 as a power source; differential pressure control valves 731, 732; and a control device 200. The control device 200 executes: heat generation suppression processing for operating the pressurization unit 50 so that a servo pressure becomes lower than a required servo pressure after restricting a reduction in wheel pressure by increasing an instructed differential pressure; and degeneration processing, including operating the pressurization unit 50 so that the servo pressure reaches the required servo pressure, if a required braking force has been changed in a situation where the servo pressure became lower than the required servo pressure due to the execution of the heat generation suppression processing.
This braking device 100 comprises: a second supply liquid path 722 connected to a wheel cylinder 16 for a rear wheel 11r; a holding valve 74 provided in the second supply liquid path 722; a pressure device 50; and a control device 90. A processing circuit 91 of the control device 90, when an increase regulation control is implemented in a situation where the holding valve 74 is open and a regenerative braking force is being generated in the rear wheel 11r, activates a regeneration device 200 and the pressurizing device 50 so that the regenerative braking force is reduced and the friction braking force is increased by increasing in supply pressure. When the regenerative braking force reaches a prescribed value or less, the processing circuit 91 regulates an increase in wheel pressure by closing the holding valve 74.
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 8/48 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse mettant en communication l'organe d'action de freinage avec une source de pression additionnelle ou alternative
B60T 13/138 - Dispositions relatives à l'alimentation en pression
47.
VEHICLE CONTROL SYSTEM, NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM AND VEHICLE CONTROL METHOD
A vehicle control system controls a yaw motion of a vehicle generated by an operation of an input unit in a steering system of the vehicle. A yaw motion control unit acquires information on a vehicle speed of the vehicle, an operable range of the input unit by a driver of the vehicle, and an operation amount of the input unit, calculates an addition amount that is to be added to the operation amount according to the operable range, and outputs a calculated addition amount to the steering system.
B62D 6/00 - Dispositions pour la commande automatique de la direction en fonction des conditions de conduite, qui sont détectées et pour lesquelles une réaction est appliquée, p. ex. circuits de commande
48.
DETERMINATION DEVICE, INFORMATION TRANSMISSION DEVICE, AND DETERMINATION SYSTEM
A determination device acquires fluctuation data indicating a progression of a fluctuation value that is a difference between a pre-process wheel speed detected by a wheel speed sensor that detects a rotation speed of a wheel of a vehicle, and a post-process wheel speed obtained by performing a low-pass filter process on the pre-process wheel speed. The determination device determines whether there is an anomaly in the wheel based on the fluctuation data.
G07C 5/04 - Enregistrement ou indication du temps de circulation, de fonctionnement, d'arrêt ou d'attente uniquement utilisant des moyens de comptage ou compteurs à horloge
In the present invention, an ECU 40 functions as: an acquisition unit 103 that acquires at a speed differential related value relating to a differential value of a parameter related to the speed of a vehicle 10 and/or a request value differential related value relating to a differential value of a request value for the vehicle 10; and a filter processing unit 105 that, when the absolute value of at least one of the speed differential related value and the required value differential related value is equal to or greater than a threshold value, uses a low-pass filter having a larger cutoff frequency than when the at least one absolute value is less than the threshold value to derive a wheel speed detection value on the basis of a value derived by performing a filtering process for removing noise from a wheel speed raw value.
A braking device (100) comprises: an electric cylinder (51); a servo pressure sensor (58); a braking actuator (70); a memory in which a first characteristic and a second characteristic are stored; and a processing circuit. The processing circuit is configured to: select the second characteristic if a servo pressure detection value is larger than a target servo pressure in a situation where it is determined that the servo pressure has changed due to operation of the braking actuator (70); derive motor torque corresponding to the target servo pressure on the basis of the selected second characteristic; and drive an electric motor of the electric cylinder (51) on the basis of the target value corresponding to the derived motor torque.
B60T 13/122 - Systèmes utilisant à la fois un maître cylindre et un distributeurAssociation structurelle d'un maître cylindre avec un distributeur
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60T 13/18 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande du débit de sortie des pompes
51.
BRAKING DEVICE AND CONTROL METHOD FOR BRAKING DEVICE
A braking device (100) comprises: an electric cylinder (51); a supply flow path through which a brake fluid flows toward a wheel cylinder (16) when the brake fluid is discharged from an output port (516) of the electric cylinder (51); an orifice (60) provided in the supply flow path; and a processing circuit. The processing circuit is configured to set the lower limit value for motor rotation speed on the basis of a negative pressure suppression characteristic and an orifice differential pressure, and to drive an electric motor of the electric cylinder (51) so that the motor rotation speed does not fall below the lower limit value when a piston (512) is moved in the backward direction (Zb) by driving the electric motor.
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60T 13/122 - Systèmes utilisant à la fois un maître cylindre et un distributeurAssociation structurelle d'un maître cylindre avec un distributeur
B60T 13/138 - Dispositions relatives à l'alimentation en pression
An aspect of the present disclosure relates to a vehicle control system configured to control a vehicle. The vehicle control system includes an electronic control unit configured to limit a driving force to be applied to the vehicle based on a brake temperature that is a temperature of a friction brake provided on a wheel of the vehicle.
A brake control device includes: an acquisition section that acquires a steering angle and a first steering angular velocity passed through a first low-pass filter; a braking processing section that decides to apply braking force to a wheel by a brake device when the absolute value of steering angle is not less than a predetermined angle and the absolute value of first steering angular velocity is not less than a predetermined velocity; and a control section that drives the brake device according to the braking processing section's decision. The acquisition section acquires a second steering angular velocity including higher frequency components than the first steering angular velocity, the braking processing section decides to execute predetermined preload control when the absolute value of second steering angular velocity is not less than the predetermined velocity, and the control section executes preload control on the brake device to improve the brake device's responsiveness.
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
A control device 50 as a road gradient estimation device estimates the road gradient of a road on which a vehicle 10 is traveling on the basis of an inertial acceleration derived on the basis of an inertial force in a traveling direction of the vehicle 10 and an actual acceleration derived on the basis of the amount of change in the vehicle speed of the vehicle 10. The control device 50 includes a forward/backward movement determination unit M11 for modifying a forward/backward movement determination indicating whether the vehicle 10 is moving backward. The control device 50 includes an acceleration correction unit M12 that acquires the inertial acceleration as a first acceleration and the actual acceleration as a second acceleration, and, when the forward/backward movement determination is modified, performs correction to invert the sign of the first acceleration or the second acceleration. The control device 50 includes a gradient estimation unit for estimating the road gradient on the basis of the difference between the first acceleration and the second acceleration.
G01P 15/14 - Mesure de l'accélérationMesure de la décélérationMesure des chocs, c.-à-d. d'une variation brusque de l'accélération en utilisant un gyroscope
G08G 1/00 - Systèmes de commande du trafic pour véhicules routiers
A processing circuit 90 of an electric braking device 10 functions as: a pressing force derivation unit that derives a pressing force estimation value based on the motor current value Imt; a filter unit that generates a post-filter pressing force-related value by attenuating signals of components with frequencies higher than a prescribed frequency among signals indicating pressing force-related values relating to the pressing force estimation value, while allowing signals of components with frequencies at or below the prescribed frequency to pass; and a motor control unit that controls an electric motor 40 on the basis of the post-filter pressing force-related value. By functioning as the filter unit, the processing circuit 90 sets the prescribed frequency such that the value decreases as the motor rotational speed decreases.
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
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
In the present invention, a processing circuit of an electric braking device functions as a pressing force estimation unit M11 for deriving a pressing force estimation value PE. The pressing force estimation unit M11 maintains the pressing force estimation value PE when a motor current Imt is a value in a range of a dead zone. When the motor current Imt is greater than the upper limit value of the dead zone, the pressing force estimation unit M11 derives the pressing force estimation value PE on the basis of a first relationship, and changes the upper limit value of the dead zone DZ. When the motor current Imt is less than the lower limit value of the dead zone, the pressing force estimation unit M11 derives the pressing force estimation value PE on the basis of a second relationship, and changes the lower limit value of the dead zone DZ.
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
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
A processing circuit of this electric braking device functions as: a rotation angle detection unit M11 that acquires a detected rotation angle value θS that is a detected value of the rotation angle of an electric motor; and a pressing force estimation unit M21 that, on the basis of a relationship that corresponds to the rotation direction of the electric motor, among a first relationship between a motor current Imt and a pressing force when the electric motor is being rotated in an increasing rotation direction and a second relationship between the motor current Imt and the pressing force when the electric motor is being rotated in a decreasing rotation direction, derives an estimated pressing force value PE with a magnitude corresponding to the motor current Imt. If it is determined, on the basis of the detected rotation angle value θS and the motor current Imt, that the relationship between the motor current Imt and the pressing force deviates from both the first relationship and the second relationship, the pressing force estimation unit M21 derives, as the estimated pressing force value PE, an estimated pressing force value of immediately before the determination that the relationship deviates from both the first relationship and the second relationship .
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
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
In a braking control device, a control unit is configured to control the yaw moment and the roll moment by independently controlling a braking force to be applied to each of the wheels of a vehicle by a braking device from the time an intervention condition is satisfied to the time an intervention end condition is satisfied while the vehicle turns. A change unit is configured to perform at least one of changing the intervention condition to be more easily satisfied and changing the intervention end condition to be less easily satisfied when the braking device is in a low-temperature state than when the braking device is in a non-low-temperature state.
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
An electric braking device (1) estimates the viscosity of a brake fluid on the basis of a first displacement amount of a piston (P) when the piston is retracted by an electric motor (M) from the point of time when the brake fluid is blocked by a switching valve (NC1) and the brake fluid in a reservoir (11) is suctioned into the hydraulic chamber (H), and a second displacement amount of the piston when the piston is advanced until it is determined that the pressure in the hydraulic chamber has returned to a pressure before the piston retraction after the completion of the piston retraction.
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60T 13/138 - Dispositions relatives à l'alimentation en pression
A braking device according to an embodiment of the present invention comprises, as an example: a backing plate; a braking member that is configured to brake a wheel by contacting a drum rotor and is supported by the backing plate; a rotation member that is capable of rotating about a central shaft; a linear motion member that is attached to the rotation member so as to move in the shaft direction in accordance with the rotation of the rotation member; a cable that is supported by the linear motion member and configured to cause the braking member to contact the drum rotor by being pulled by the linear motion member; and a first case that includes a support surface attached to the backing plate and supporting the rotation member, a first portion made from a metal, the first portion being provided between the support surface and the backing plate and surrounding the cable, and a second portion made from a resin, the second portion being formed integrally with the first portion and at least partially accommodating the rotation member.
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
F16D 65/22 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour séparer les organes par pression
F16D 121/24 - Électrique ou magnétique utilisant des moteurs
This travel mode proposal device is applied to a vehicle that is provided with a plurality of travel modes for improving riding comfort for an occupant of the vehicle. A processing circuit of the travel mode proposal device functions as an acquisition unit M11 that acquires information on vehicle interior information, vehicle exterior information, and/or vehicle information of the vehicle, and an instruction unit M15 that instructs the proposal device to propose to the occupant a travel mode corresponding to the information acquired by the acquisition unit M11 among the plurality of travel modes.
B60W 30/182 - Sélection entre plusieurs modes opératoires, p. ex. confort ou sportif
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
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60W 10/04 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion
B60W 10/18 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de freinage
B60W 40/04 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés aux conditions de trafic
B60W 50/12 - Limitation de la possibilité de commande du conducteur en fonction de l'état du véhicule, p. ex. moyens de verrouillage des grandeurs d'entrées pour éviter un fonctionnement dangereux
A brake control device 50 controls the braking force applied to a vehicle 10. If the reversing vehicle 10 is to be stopped, a processing circuit 51 of the brake control device 50 functions as a control unit M15 which performs first stopping control for controlling the braking force so as to suppress a change in the attitude of the vehicle 10 caused by stopping.
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
A braking control device includes a derivation unit that derives the slip ratio of a wheel based on detected wheel speed and vehicle speed, a brake processor that determines braking amounts to be applied to a regenerative braking device and a friction braking device based on an accelerator operation amount and a braking operation amount, and a controller that controls the regenerative braking device and the friction braking device based on the determined braking amounts. When the slip ratio increases to a predetermined threshold value or more while the accelerator operation amount is decreasing, the controller executes target slip control for controlling torque of a motor of the regenerative braking device based on a predetermined target slip ratio to adjust the slip ratio, and when the target slip control is executed to perform the braking operation, the friction braking device generates a braking amount corresponding to the braking operation amount.
B60L 7/26 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique commandant l'effet de freinage
A braking control device for vehicles includes an upper braking unit that electrically outputs a supply pressure according to a braking request amount; and a lower braking unit that is disposed between the upper braking unit and a plurality of wheel cylinders, adjusts the supply pressure with respect to each of the plurality of wheel cylinders, and outputs a wheel pressure. When the lower braking unit executes the sideslip prevention control, the upper braking unit increases the supply pressure to a demand pressure necessary for executing the sideslip prevention control.
B60T 13/18 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande du débit de sortie des pompes
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
A braking control device (70) comprises: a selection unit (82) configured so that, when braking force is imparted to a vehicle (10) to stop the vehicle (10), the selection unit (82) selects a stop control from a stop control group having a first stop control that includes a braking force reduction process and a braking force increase process and a second stop control that includes a braking force reduction process but does not include a braking force increase process, the selection unit (82) selecting the stop control in accordance with the time allowed to stop the vehicle (10); and a control unit (81) configured to execute the stop control selected by the selection unit (82) when braking force is imparted to the vehicle (10) to stop the vehicle (10).
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
A processing circuit 51 of a braking control device 50 functions as: a control unit M11 that, when bringing a vehicle 10 to a halt by applying a braking force thereto, performs stop-time braking control of bringing the vehicle body speed of the vehicle 10 to 0 (zero) after reducing the vehicle braking force to a prescribed braking force; and a setting unit M15 that, during the execution of the stop-time braking control, sets the time for executing the processing for retaining the stop-time braking control shorter when the moving force acting on the vehicle 10 is larger.
B60T 8/1755 - Régulation des freins spécialement adaptée pour la commande de la stabilité du véhicule, p. ex. en tenant compte du taux d'embardée ou de l'accélération transversale dans une courbe
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
A braking control device includes a pressure adjustment unit that adjusts a wheel pressure Pw of a wheel cylinder by a servo pressure Pu generated using an electric motor as a power source, a solenoid valve provided in a hydraulic pressure transmission path from the servo pressure Pu to the wheel pressure Pw, and a controller that controls the pressure adjustment unit. The controller calculates a pressure loss Pd in the solenoid valve based on an instruction pressure Ps calculated from a braking request amount Bs and the wheel pressure Pw. Then, the controller determines a target pressure Pt by adding the pressure loss Pd to the instruction pressure Ps, and controls the pressure adjustment unit based on the target pressure Pt.
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
B60T 13/14 - Dispositions relatives à l'alimentation en pression utilisant des accumulateurs ou des réservoirs
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
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
A processing circuit 51 of a braking control device 50 functions as: a reduction control unit M13 that, when stopping a vehicle 10 traveling on an uphill road by applying braking force to the vehicle 10, executes braking force reduction processing in which a vehicle body speed of the vehicle 10 is set to 0 (zero) after reducing the vehicle braking force to a first braking force that is a braking force equal to or greater than 0 (zero) and is smaller than a stop maintaining braking force which is a braking force for counteracting a force acting on the vehicle 10 in a downhill direction and a force acting on the vehicle 10 in an uphill direction; and a degeneration control unit M17 that executes braking force increase processing that increases the vehicle braking force to a second braking force greater than or equal to the stop maintaining braking force from a point in time when the vehicle 10 is switched from the forward movement to the backward movement by the execution of the braking force reduction processing.
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
A processing circuit 51 of a braking control device 50 functions as: a control unit M11 that, when a braking force is applied to a vehicle 10 to stop the vehicle, executes reduction correction processing of reducing the vehicle braking force to a predetermined braking force less than a required braking force and then setting the vehicle body speed of the vehicle 10 to 0 (zero); and a setting unit M15 that, when a change in a braking operation being performed by the driver is detected before the start of the reduction correction processing, setting the execution time of the reduction correction processing to a shorter time than when no change in the braking operation is detected.
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
This braking control device comprises: a control cylinder into which a control piston is inserted and in which a servo pressure is generated through movement of the control piston by an electric motor; a servo pressure sensor that detects the servo pressure; and a controller that calculates a target pressure on the basis of a braking request amount, and controls the electric motor on the basis of the target pressure and the servo pressure. The braking control device also adjusts the wheel pressure of a wheel cylinder by the servo pressure. Here, the controller calculates, on the basis of the target pressure, a standard liquid amount that should flow into the wheel cylinder, calculates an estimated liquid amount that is assumed to have flowed into the wheel cylinder on the basis of the servo pressure, and controls the electric motor on the basis of deviation of the estimated liquid amount from the standard liquid amount.
This braking control device is applied to a vehicle having front wheels equipped with a regeneration device. The braking control device comprises: a control cylinder that generates a basic pressure by using an electric motor as a power source; a solenoid valve that adjusts the basic pressure to an adjustment pressure; and a controller that controls the electric motor and the solenoid valve. The braking control device controls the front wheel pressure of a front wheel cylinder by means of the adjustment pressure and controls the rear wheel pressure of a rear wheel cylinder by means of the basic pressure. The controller: calculates fluid volumes to be supplied to the front wheel cylinder and the rear wheel cylinder as front-wheel and rear-wheel nominal fluid volumes, on the basis of a front-wheel target pressure and a rear-wheel target pressure which are target values for the front wheel pressure and the rear wheel pressure, respectively; controls the electric motor on the basis of the front-wheel and the rear-wheel nominal fluid volumes; and controls the solenoid valve on the basis of the front-wheel target pressure and the rear-wheel target pressure.
This braking control device for vehicles comprises: a control cylinder into which a control piston is inserted and which generates a servo pressure by moving the control piston with an electric motor; a servo pressure sensor which detects the servo pressure; and a controller which controls the electric motor on the basis of the servo pressure. The braking control device adjusts a wheel pressure of a wheel cylinder according to the servo pressure. The controller acquires a discharge liquid amount from the control cylinder, calculates an estimated liquid amount on the basis of the servo pressure and a conversion map, and controls the electric motor on the basis of a deviation between the discharge liquid amount and the estimated liquid amount. For example, the controller calculates a target pressure on the basis of a braking request amount, calculates a standard liquid amount on the basis of the target pressure and the conversion map, and controls a rotation angle of the electric motor on the basis of the standard liquid amount and the deviation.
Provided is a vehicle control device for controlling a driving force or braking force of a vehicle that passes a source (S) of change which changes the vehicle speed when a wheel of the vehicle climbs thereupon or descends therefrom. The vehicle control device comprises: a passage determination unit (44) that determines that the vehicle has passed the source of change; an impulse computation unit (43) that calculates an impulse applied to the vehicle when the vehicle passes the source of change and that outputs impulse information which corresponds to the calculated impulse; and a braking/driving computation unit (422) that, on the basis of the impulse information, calculates a driving force and braking force after the vehicle has passed the source of change. The impulse computation unit calculates a velocity impulse that is based on the vehicle speed which changes when passing the source of change, and a braking/driving impulse that is based on the driving force and the braking force which change when passing the source of change. When a disturbance impulse is defined as the difference between the velocity impulse and the braking/driving impulse, the braking/driving computation unit, upon determination by the passage determination unit that the source of change has been passed, calculates the driving force and the braking force on the basis of the amount of change in the disturbance impulse when passing the source of change.
B60W 30/00 - Fonctions des systèmes d'aide à la conduite des véhicules routiers non liées à la commande d'un sous-ensemble particulier, p. ex. de systèmes comportant la commande conjuguée de plusieurs sous-ensembles du véhicule
B60L 15/20 - 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 pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
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
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
B60W 30/06 - Manœuvre automatique de stationnement
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
This vehicle control device for controlling driving force and braking force of a vehicle passing over a change generation source (S) that changes a vehicle speed through a vehicle wheel riding over or down the same comprises: an impulse calculation unit (43) for calculating an impulse applied to the vehicle at the time of the vehicle passing over the change generation source, and for outputting impulse information corresponding to the calculated impulse; a passage determination unit (44) for determining the passage over the change generation source on the basis of the impulse information outputted by the impulse calculation unit; and a braking/driving calculation unit (422) for calculating the driving force and the braking force at the time of the passing over the change generation source on the basis of the determination result from the passage determination unit. The impulse calculation unit calculates, as the impulse information, a speed impulse based on the vehicle speed when passing over the change generation source, and a braking/driving impulse based on the driving force and the braking force when passing over the change generation source. The passage determination unit determines the passage over the change generation source on the basis of a difference between the speed impulse and the braking/driving impulse that are calculated by the impulse calculation unit.
B60W 30/00 - Fonctions des systèmes d'aide à la conduite des véhicules routiers non liées à la commande d'un sous-ensemble particulier, p. ex. de systèmes comportant la commande conjuguée de plusieurs sous-ensembles du véhicule
B60L 15/20 - 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 pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
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
B60W 30/06 - Manœuvre automatique de stationnement
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
The present invention accurately determines whether a road surface on which a vehicle is located is submerged. A submergence estimation device (2) is applied to a vehicle in which at least one of a plurality of wheels is a drive wheel and at least one of the plurality of wheels is a following wheel, and comprises: a wheel speed difference acquisition unit (200) that acquires a wheel speed difference from a difference between the wheel speed of the drive wheel and the wheel speed of the following wheel; and a submergence determination unit (202) that determines whether the road surface on which the vehicle is located is submerged on the basis of the wheel speed difference.
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
A disc brake device according to an embodiment comprises, for example: a disc that is configured to be clamped between two brake pads when braking a vehicle; a hat that connects the disc to an axle of the vehicle; a first coating that is a metal coating formed by electroless plating and electrolytic plating, and is provided on two side surfaces of the disc facing the brake pads; and a second coating that is less susceptible to rust than the hat, is provided on a surface of the hat, and differs from the first coating in at least one of a material and a manufacturing method.
A braking control device for a vehicle includes an upper braking unit configured to pressurize a supply pressure by throttling, with a pressure adjustment valve, a circulation flow discharged by a fluid pump driven by an electric motor, and a lower braking unit disposed between the upper braking unit and a wheel cylinder and configured to pressurize the supply pressure to output a wheel pressure to the wheel cylinder. In a case where the lower braking unit pressurizes the wheel pressure, the upper braking unit reduces a rotation number of the electric motor as compared with a case where the lower braking unit does not pressurize the wheel pressure.
B60T 13/20 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande des moyens d'entraînement des pompes
In an electric cylinder device including a third gear that rotates by receiving rotation of an electric motor and a linear motion conversion mechanism that converts the rotation of the third gear into linear motion of a piston inside a cylinder, a nut, which is a linear motion portion of the linear motion conversion mechanism, and the piston are connected in a state in which relative displacement in a radial direction is allowed.
F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
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
A vehicle braking control device includes supply and servo chambers sealed by a seal member, a pressure adjustment unit that adjusts front wheel pressure by supplying a first servo pressure to the servo chamber and outputs front wheel supply pressure from the supply chamber to a front wheel cylinder, and adjusts rear wheel pressure by outputting a second servo pressure to a rear wheel cylinder as rear wheel supply pressure, front/rear wheel supply pressure sensors that detect the front/rear wheel supply pressures respectively, and a controller that selects any one of a two-system pressure adjustment for individually adjusting the first and second servo pressures, and a one-system pressure adjustment for adjusting the first and second servo pressures to be the same. The controller individually calculates front/rear wheel target pressures and causes the front/rear wheel supply pressures to coincide with the front/rear wheel target pressures in the two-system pressure adjustment
B60T 8/26 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage caractérisées par une force de freinage différenciée entre roues avant et arrière
B60T 8/176 - Régulation des freins spécialement adaptée pour la prévention du dérapage excessif des roues pendant la décélération, p. ex. ABS
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
An electric braking device 10 comprises: a torque difference calculation unit 94 that calculates a pressurization/decompression torque difference that is a difference between a first command torque that is a command torque at a first timing at which a change trend of command torque to an electric motor 40 changes from an increase trend to a decrease trend and vice versa, and a second command torque that is a command torque at a second timing at which a pressing force applied to a rotor 110 starts to change by maintaining the change trend of the command torque from the first timing; and an efficiency estimation unit 95 that estimates the efficiency of the electric braking device 10 that is the ratio of the command torque to the difference between the command torque and the proportional loss torque, on the basis of the first command torque or the second command torque and the pressurization/decompression torque difference.
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
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
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 121/24 - Électrique ou magnétique utilisant des moteurs
A brake control device of the present invention comprises a control cylinder that generates a servo pressure by movement of a control piston driven by an electric motor, a normally open solenoid valve provided in a liquid pressure transmission path from the control cylinder to a wheel cylinder, and a controller that controls the electric motor and the solenoid valve, where the wheel pressure of the wheel cylinder is adjusted by the servo pressure. When a temperature-associated value associated with the temperature of a constituent member related to the electric motor exceeds a threshold value, the controller performs specific processing for closing the electromagnetic valve to reduce the servo pressure. During the specific processing, the servo pressure is increased at the point in time when a prescribed time has elapsed from the point in time when the servo pressure was reduced.
B60T 13/138 - Dispositions relatives à l'alimentation en pression
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 13/13 - Systèmes utilisant un amplificateur combiné hydrauliquement à un maître cylindre avec une sortie hydraulique additionnelle reliant directement l'amplificateur au circuit de frein
This braking control device comprises: a control cylinder that generates servo pressure by movement of a control piston driven by an electric motor; a solenoid valve of a normally open type provided in a liquid-pressure transmission path from the control cylinder to a wheel cylinder; and a controller that controls the electric motor and the solenoid valve. The wheel pressure of the wheel cylinder is adjusted by the servo pressure. When a temperature related value related to the temperature of a constituting member for the electric motor exceeds a threshold value, the controller closes the solenoid valve to reduce the servo pressure to a lower limit pressure set on the basis of a maximum rating capable of continuously energizing the constituting member. Further, when the differential pressure between the wheel pressure and the lower limit pressure is small, the controller reduces a valve current supplied for closing the solenoid valve as compared to when the differential pressure is large.
B60T 13/13 - Systèmes utilisant un amplificateur combiné hydrauliquement à un maître cylindre avec une sortie hydraulique additionnelle reliant directement l'amplificateur au circuit de frein
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 13/138 - Dispositions relatives à l'alimentation en pression
A vehicle control system includes an information acquisition unit that acquires traveling state information each time, an information storage unit that stores the traveling state information acquired by the information acquisition unit, and a weight estimation unit that derives an estimated value of a vehicle weight based on traveling state information satisfying a predetermined selection condition among a plurality of pieces of traveling state information stored by the information storage unit. The selection condition is a condition under which disturbance in derivation of the estimated value of the vehicle weight by the weight estimation unit is reduced.
This braking control device is applied to a vehicle provided with a regenerative device on a front wheel. The braking control device is provided with a control cylinder that generates a basic pressure with an electric motor serving as a power source, an electromagnetic valve that adjusts the basic pressure to an adjusted pressure, and a controller that controls the electric motor and the electromagnetic valve. The device controls a front wheel pressure at the adjusted pressure and controls a rear wheel pressure at the basic pressure. The controller executes either: one-system pressure adjustment in which a total braking force corresponding to a required braking amount is reached by making the adjusted pressure equal to the basic pressure; or two-system pressure adjustment in which the adjusted pressure is made lower than the basic pressure so that the total braking force is reached in a state in which distribution of the total braking force to the front and rear is kept at prescribed values. A first instructed pressure for controlling the adjusted pressure in the one-system pressure adjustment and a second instructed pressure for controlling the adjusted pressure in the two-system pressure adjustment are computed, and either the one-system pressure adjustment or the two-system pressure adjustment is selected on the basis of a comparison between the first instructed pressure and the second instructed pressure.
B60T 8/26 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage caractérisées par une force de freinage différenciée entre roues avant et arrière
B60L 7/14 - Freinage dynamo-électrique par récupération pour véhicules propulsés par moteurs à courant alternatif
B60L 7/20 - Freinage par fourniture d'énergie de récupération au moteur primaire sur les véhicules comportant des générateurs entraînés par le moteur
B60L 7/24 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
In a braking force maintaining mechanism 70, when a ratchet gear 71 that rotates in conjunction with driving of an electric motor rotates in an increase direction X1 in a state where a pawl member 72 is engaged with the ratchet gear 71, Engagement between the ratchet gear 71 and the pawl member 72 is released, thereby allowing the ratchet gear 71 to rotate in a decrease direction X2. In an engagement release mechanism 80, when a force is input from the outside to cause a bolt 81 rotary movement in a first direction Y1, a release pawl 86 approaches and comes into contact with the ratchet gear 71. When the bolt 81 rotates in the first direction Y1 in this state, the ratchet gear 71 is rotated in the increase direction X1 by the release pawl 86.
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
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 121/24 - Électrique ou magnétique utilisant des moteurs
F16D 125/34 - Éléments mécaniques convertissant une rotation en un mouvement linéaire ou vice-versa agissant dans la direction de l'axe de rotation
F16D 125/48 - Éléments rotatifs en contact mutuel avec des axes parallèles et fixes, p. ex. engrenages cylindriques
F16D 127/04 - Mécanismes de desserrage ou de relâchement à actionnement manuel
A braking system 20 comprises: a pressure adjustment unit 50 that generates a reference hydraulic pressure and also generates a front wheel hydraulic pressure according to the reference hydraulic pressure; a rear wheel hydraulic pressure adjustment unit 74 that is configured to allow a rear wheel hydraulic pressure to be less than the front wheel hydraulic pressure when the reference hydraulic pressure is being generated; and a control device 80 that controls a regeneration device 90, the pressure adjustment unit 50, and the rear wheel hydraulic pressure adjustment unit 74. The control device 80, when a vehicle braking force request value is reduced under a condition where the vehicle braking force request value is equal to or more than a first braking force, executes first reduction processing in which a regenerative braking force applied to rear wheels RL, RR is reduced and the rear wheel hydraulic pressure is maintained while reducing the front wheel hydraulic pressure by reducing the reference hydraulic pressure.
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60L 7/12 - Freinage dynamo-électrique par récupération pour véhicules propulsés par moteurs à courant continu
B60T 8/28 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage caractérisées par une force de freinage différenciée entre roues avant et arrière selon la décélération
B60T 8/58 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération selon une condition de vitesse et une autre condition, ou selon une pluralité de conditions de vitesse
A brake pad accessory according to an embodiment comprises, as an example: a base part configured to be removably attached to a backplate of a brake pad by an elastic force; a first spring extending from the base part and configured to push the brake pad in a direction away from a rotor; and an extension part extending from the base part. The extension part has at least one of: a wear alarm device configured to come into contact with the rotor when the distance between the backplate and the rotor is less than a prescribed distance; and a second spring configured to push the brake pad about a central axis of rotation of the rotor.
F16D 65/097 - Moyens élastiques interposés entre les patins et les organes de support
F16D 55/225 - 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 les organes de freinage étant des patins de freins
A fluid power system according to an embodiment includes a valve device having a first flow path connecting a first chamber connected to a pressure source and a second chamber connected to an actuator, the valve device having: a first check valve movable between a first open position and a first closed position and allowing fluid to flow from the first chamber to the second chamber; and a movable part that displaces relative to the first check valve in conjunction with actuation of the pressure source. The movable part is in a position for holding the first check valve in the first open position when the pressure source reduces the pressure of the first chamber below a first pressure or is actuated so as to reduce the pressure, and is in a position allowing the first check valve to be in the first closed position when the pressure source adjusts the pressure of the first chamber to be at or above the first pressure or is actuated so as to apply pressure.
B60T 13/138 - Dispositions relatives à l'alimentation en pression
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 13/18 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs avec commande du débit de sortie des pompes
B60T 13/122 - Systèmes utilisant à la fois un maître cylindre et un distributeurAssociation structurelle d'un maître cylindre avec un distributeur
B60T 15/36 - Autres dispositifs de commandes ou valves caractérisés par des fonctions définies
A braking system 100 comprises: an electric cylinder 51 that has a servo motor 513; a rotation angle sensor SE2; and a control unit 81. The rotation angle sensor SE2 is configured so as to detect a Z pulse, which is generated each time the servo motor 513 completes one full rotation, and a phase pulse, which is generated each time the servo motor 513 rotates by a prescribed rotation angle. The control unit 81 performs a rotation angle sensor checking process. In the rotation angle sensor checking process, the control unit 81 rotates the servo motor 513 such that a piston 512 retreats. The control unit 81 counts the number of phase pulses in the period from the detection of a first Z pulse to the detection of a second Z pulse. The control unit 81 determines that the rotation angle sensor SE2 is normal when the number of phase pulses is within a prescribed range.
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
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
B60T 13/138 - Dispositions relatives à l'alimentation en pression
An electric braking device (10) comprises: a piston (14) that has an exposed part (14A) that is exposed from a cylinder (13) over an entire range of movement for movement in response to the linear motion of a linear motion part (15B); a restrictable part (19) that extends further outward than the outer circumference of the piston (14) in the radial direction of the piston (14); and a restriction part (18) that restricts, relative to the cylinder (13), the rotation of the restrictable part (19) around the axis of the piston (14).
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
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 121/24 - Électrique ou magnétique utilisant des moteurs
This braking control device includes: a main housing HGc in which first and second cylinders CM, CC are formed; a first piston NM which is inserted into the first cylinder CM and moves in conjunction with a braking operation member BP, whereby a supply pressure Pm can be generated in the first cylinder CM; an electric motor MT which generates first rotation power Tm; a reduction gear GS which decelerates the first rotation power Tm and outputs second rotation power Tn; a conversion mechanism GH which converts the second rotation power Tn into linear power Fn; a second piston NC which is inserted into the second cylinder CC and moves by the linear power Fn, whereby a servo pressure Pc is generated in the second cylinder CC; and a sub-housing HGs which holds the electric motor MT, the reduction gear GS, the conversion mechanism GH, and the second piston NC and is assembled to the main housing HGc.
B60T 13/138 - Dispositions relatives à l'alimentation en pression
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
An electric braking device (1) selectively executes, when holding braking force, a first holding control for making the driving amount of some electric actuators from among a plurality of electric actuators (A1-A4) greater than the driving amount of the electric actuators other than said some electric actuators, and a second holding control for making the driving amount of the electric actuators other than said some electric actuators greater than the driving amount of said some electric actuators.
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60T 13/138 - Dispositions relatives à l'alimentation en pression
In this electric braking device, a screw shaft 51 of a linear motion conversion mechanism 50 rotates in response to rotational motion of an electric motor, and the rotational motion of the screw shaft 51 is converted into linear motion of a nut 60 of the linear motion conversion mechanism 50. The linear motion of the nut 60 in a forward direction X1 causes a piston 70 to move linearly, thereby increasing a braking force. A portion of the nut 60 that receives a force from the screw shaft 51 is disposed in the forward direction X1 relative to a rotation center PA of the nut 60 such that, when the nut 60 linearly moves in the forward direction X1 in a state in which a screw axis Zv of the screw shaft 51 is inclined with respect to a nut axis Zn of the nut 60, the nut 60 is caused to rotate in a direction in which the screw axis Zv is along the nut axis Zn by a force that the screw shaft 51 receives from the nut 60 and a force that the nut 60 receives from the piston 70.
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
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
Provided is a friction material composition according to one embodiment of the present invention, in which the content of copper in the friction material composition is less than 0.5 mass% in terms of copper element. The friction material composition contains, each relative to the total amount of the friction material composition, the following: 0.05-1 mass% of one or two inorganic materials (excluding monoclinic zirconium oxide) selected from the group consisting of (1) an inorganic material having an average particle diameter of 1 µm or less and a Mohs' hardness of 7.5-8 and (2) an inorganic material having an average particle diameter of 50 μm or less and a Mohs' hardness of not less than 6 and less than 7.5; 5-35 mass% of monoclinic zirconium oxide; and 0.5-10 mass% of magnesium hydroxide.
This hydraulic pressure generation device comprises: an electric motor that outputs rotational power; a conversion mechanism that outputs, as linear power for a linear motion member, rotational power input to a rotary member; a piston that is inserted into a cylinder and that moves under linear power to increase the hydraulic pressure of the cylinder; and an intermediate member that is disposed between the linear motion member and the piston and that is capable of sliding together with the linear motion member and the piston. The piston has a first bottom part and a first cylindrical part. The intermediate member has a second cylindrical part and is inserted into the first cylindrical part. In a gap between the inner peripheral surface of the first cylindrical part and the outer peripheral surface of the second cylindrical part, a gap Ska at a position close to the first bottom part is made narrower than a gap Skb which is at a position spaced apart from the first bottom part.
This braking control device comprises a first unit for outputting a supply pressure in accordance with operation displacement of a braking operation member, a second unit between the first unit and a wheel cylinder to increase the supply pressure and output a wheel pressure to the wheel cylinder, a displacement sensor for detecting the operation displacement, and a supply pressure sensor for detecting the supply pressure. The first unit selects either a first mode in which the operation displacement and the supply pressure are independent or a second mode in which the operation displacement and the supply pressure are linked. When the displacement sensor is normal, the first unit selects the first mode and increases the supply pressure based on the operation displacement. When the displacement sensor is not normal, the first unit selects the second mode, and the second unit increases the wheel pressure based on the supply pressure.
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
This braking control device comprises: a first unit that outputs a supply pressure in accordance with the amount of operation of a braking operation member; a second unit that is provided between the first unit and a wheel cylinder, and adjusts the supply pressure to output a wheel pressure to the wheel cylinder; a communication bus for communicating signals between the first unit and the second unit; an operation amount sensor that detects the operation amount; and a supply pressure sensor that detects the supply pressure. In the braking control device, when there is an abnormality in signal communication, the second unit calculates a target pressure on the basis of the operation amount and adjusts the wheel pressure on the basis of the difference between the target pressure and the supply pressure.
B60T 8/40 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse comportant un circuit de fluide additionnel ayant des moyens de pressurisation du fluide pour modifier la pression du fluide de freinage, p. ex. comportant des pompes entraînées par les roues pour détecter une condition relative à la vitesse, ou des pompes commandées par des moyens indépendants du système de freinage
This braking control device comprises a first unit that outputs supply pressure in accordance with the amount of operation of a braking operation member, a second unit that is provided between the first unit and a wheel cylinder and that increases the supply pressure and outputs a wheel pressure to the wheel cylinder, a communication bus that transfers signals between the first unit and the second unit, an operation amount sensor that detects the amount of operation, and a supply pressure sensor that detects the supply pressure. In the braking control device, the first unit controls the supply pressure so as to bring the supply pressure close to a target pressure calculated on the basis of the amount of operation. When the first unit is abnormal, the second unit increases the wheel pressure on the basis of the deviation between the target pressure and the supply pressure.
B60T 13/66 - Commande électrique des systèmes de freins à fluide sous pression
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
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
A braking control device for vehicles that comprises: a first unit that outputs a supply pressure in accordance with the amount a braking operation member is operated; a second unit that is provided between the first unit and a wheel cylinder, regulates the supply pressure, and outputs a wheel pressure to the wheel cylinder; a communications bus that transfers signals between the first unit and the second unit; an operation amount sensor that is connected to the first unit and detects the operation amount; and a supply pressure sensor that is connected to the second unit and detects the supply pressure. The first unit calculates a target pressure on the basis of the operation amount, obtains the supply pressure from the second unit via the communications bus, and performs feedback control such that the supply pressure matches the target pressure.
B60T 13/66 - Commande électrique des systèmes de freins à fluide sous pression
B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
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
The objective of the present invention is to properly detect a sign that a stuck-state will occur. A stuck-state sign detecting device (2) comprises: a calculating unit (201) that compares a first wheel speed of a driving wheel of a vehicle with a second wheel speed, which is the average value of the wheel speed of the driving wheel, and calculates a deviation-related value relating to the deviation of the first wheel speed from the second wheel speed; and a stuck-state determining unit (202) that, if the deviation-related value is equal to or greater than a predetermined threshold and an acceleration demand is being generated for the vehicle, determines the probability that the vehicle will become stuck.
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