A vehicle braking system comprising a spring brake actuator having a spring brake chamber, a spring brake control assembly and an immobiliser valve which is movable between brake release position in which the spring brake control assembly is operable to cause the flow of pressurised fluid into the spring brake chamber or to vent the spring brake chamber to a low pressure region, and an immobilise position in which the spring brake control assembly is operable to connect the spring brake chamber to a low pressure region but cannot be operated to cause the flow of pressurised fluid into the spring brake chamber.
B60T 7/20 - 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 spécialement adaptés pour remorques, p. ex. dans le cas d'un décrochage de la remorque
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
B60R 25/08 - Équipements ou systèmes pour empêcher ou signaler l’usage non autorisé ou le vol de véhicules agissant sur des systèmes ou des équipements de véhicules, p. ex. sur les portes, les sièges ou les pare-brises en agissant sur les freins ou les systèmes de freinage
2.
A CONTROL CIRCUIT FOR INDUCTIVE LOADS IN VEHICLES, COMPRISING CURRENT SENSE-, CURRENT COMPARATOR- AND CURRENT RECIRCULATION CIRCUITS
A control circuit for controlling the operation of a main switch device which manages an electrical current delivered to an inductive load device, the control circuit including: a current sense circuit configured to be coupled to the switch device and to output a signal representative of an electrical current through the inductive load device; a current comparator circuit configured to receive an actuation command signal, compare the signal representative of the electrical current through the inductive load device with a signal representative of a predetermined current, and to output a control signal based on the comparison for controlling the operation of the main switch device when the actuation command signal indicates that the inductive load device is to be activated; and a recirculation circuit configured to recirculate current through the inductive load device, such that the current used to activate the inductive load device is selectively provided by the main switch device and the recirculation circuit.
A current load circuit configured to provide a predetermined current load on a current load line of an electrical supply system of a vehicle, the current load circuit comprising: a switching boost converter configured to be charged from the current load line and to discharge to a return line of the electrical supply system of the vehicle; and a current load control circuit configured to control the operation of the switching boost converter to maintain a current load on the current load line above a predetermined current during operation of the switching boost converter, such that a portion of the current drawn from the current load line is returned to the return line of the electrical supply system of the vehicle.
B60R 16/023 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour la transmission de signaux entre des parties ou des sous-systèmes du véhicule
B60R 16/03 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour l'alimentation des sous-systèmes du véhicule en énergie électrique
B60Q 11/00 - Agencement des dispositifs témoin pour les dispositifs prévus dans les groupes
A regulator control circuit which is configured to control a switching regulator: a feedback comparator configured to compare a signal representative of a reference voltage with a signal representative of a voltage output of the switching regulator and to output a control signal for controlling the operation of the switching regulator dependent on the signals received by the feedback comparator; and a current feedback controller connected to the feedback comparator and configured to receive a signal representative of a current output by the switching regulator and determine whether the regulator control circuit adopts a first or second mode of operation based on the signal representative of a current output, such that, in the first mode of operation, the control signal is for controlling the switching regulator in accordance with a constant voltage control scheme and, in the second mode of operation, the control signal is for controlling the switching regulator in accordance with a constant current control scheme.
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
G05F 1/565 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final sensible à une condition du système ou de sa charge en plus des moyens sensibles aux écarts de la sortie du système, p. ex. courant, tension, facteur de puissance
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
An electromagnetic valve comprises a yoke, a magnet having pole pieces defining a gap, a flexure assembly having one end attached to the yoke such that part of the flexure assembly extends into the gap, and a mechanism configured to polarize the magnetizable portion so that the extending part of the flexure assembly is attracted towards a pole piece by a magnetic force, thereby defining a valve state. The flexure assembly has at least one resilient portion and at least one magnetizable portion, wherein the extending part of the flexure assembly is movable between the pole pieces through an intermediate position towards which it is resiliently biased such that a resilient mechanical force is generated by deflecting the resilient portion from an undeflected position. The magnetizable portion and the resilient portion are configured such that the magnetic force defining the valve state is greater than the resilient mechanical force.
F16K 11/044 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape ou de clapet mobiles situés entre des sièges de soupape ou de clapet
F16K 31/08 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant utilisant un aimant permanent
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
A security system for a trailer, the security system comprising: a detection arrangement (40) to detect activity relating to the trailer; a communication arrangement for two-way communication between the trailer and a remote control centre; and a security arrangement (32, 36, 38) which is selectively activatable, wherein: the communication arrangement is operable to receive an authorisation message indicating whether activity of a certain type is authorised or unauthorised; and upon detection by the detection arrangement of activity relating to the trailer, if an authorisation message is received indicating that the activity is unauthorised, the security arrangement is activated.
A trailer control system for a trailer comprising: an electronic braking system (EBS); an electrical connection, by which electrical power may be provided to the trailer from an external source; and a fluid connection, through which pressurised fluid may be supplied to the trailer from an external source, the control system comprising a fluid sensor, positioned to sense the introduction of pressurised fluid into the fluid connection, and wherein, if the fluid sensor senses the supply of pressurised fluid into the fluid connection when no external power source is connected to the electrical connection, power is provided to the EBS from an on-board power source to activate the EBS.
B60T 7/20 - 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 spécialement adaptés pour remorques, p. ex. dans le cas d'un décrochage de la remorque
B60T 15/22 - Valves-relais triples ou autres permettant l'application ou le relâchement par à-coups et qui sont actionnées par la variation de pression dans le tuyau de frein reliant les cylindres de frein ou organes équivalents à la source d'air comprimé, au vide ou à l'atmosphère commandées par deux pressions de fluides avec une ou plusieurs valves auxiliaires, pour freinage, relâchement, remplissage des réservoirs
A power system for a vehicle trailer, the trailer comprising an electronic braking system (EBS) and a telematics unit having a battery, wherein a power connection is provided from the telematics unit to the EBS to provide power from the rechargeable battery of the telematics unit to the EBS to power the EBS when the trailer is not connected to an external source of electrical power.
B60T 8/18 - 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 le chargement ou le poids du véhicule, p. ex. répartition du chargement
A method of vehicle stability control including the steps of: a) applying a test braking pulse to a wheel on a first side of the vehicle and to a wheel on a second, opposite, side of the vehicle, the application of the test braking pulse comprising operating a brake actuator to apply a low level braking pressure to the wheel, b) measuring the rotational speed of both wheels during the test braking pulse, c) calculating a change in wheel speed during the test braking pulse for each wheel, d) calculating the difference between the change in speed of the wheel at the first side of the vehicle and the change in speed of the wheel at the second side of the vehicle, e) carrying out a stability control intervention if the said difference exceeds a predetermined threshold.
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 valve assembly comprising an inner housing in which is provided a first port, a second port, and a third port there being located in the inner housing a valve member assembly which is movable between a first position in which the second port is connected to the third port whilst the first port is closed, a second position in which the first port is connected to the second port whilst the third port is closed, and a third position in which at least two of the first, second and third ports are closed, wherein the valve assembly further comprises an outer housing which Is separate from and encloses at least part of the inner housing, the outer housing having a first port and a second port, the Inner housing and outer housing each being provided with first mating parts, which engage to provide a substantially fluid tight seal between the Inner housing and the outer housing whilst enclosing a conduit for fluid communication between the first port of the inner housing and the first port of the outer housing, and second mating parts, which engage to provide a substantially fluid tight seal between the inner housing and the outer housing whilst enclosing a conduit for fluid communication between the second port of the Inner housing and the second port of the outer housing.
B60T 13/66 - Commande électrique des systèmes de freins à fluide sous pression
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
B60T 15/02 - Valves d'application et de relâchement des freins
B60T 8/32 - 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
A valve assembly (10) including a housing (24) and a first movable member (26) which divides the housing into a control chamber (22) and a main chamber (30), the housing (24) being provided with an inlet port (12), a delivery port (14) and an exhaust port (16) which connect the main chamber (30) with the exterior of the housing (24), the valve assembly (10) further including a second movable member (32) which has a first valve part (34) and a second valve part (36) and which is movable parallel to an axis of the valve assembly to engage the first valve part (34) with a corresponding inlet valve part (12a) secured relative to the housing (24), engagement of the first valve part (34) with the inlet valve part (12a) substantially preventing flow of fluid into the main chamber (30) via the inlet port (12), the first movable member (26) being provided with an exhaust valve part (26c) and movable so that the exhaust valve part (26c) engages with the second valve part (36) of the second movable member (32), engagement of the exhaust valve part (26c) with the second valve part (36) substantially preventing flow of pressurised fluid out of the main chamber (30) via the exhaust port (16), characterised in that the valve assembly (10) is further provided with a support part (46a) which is secured relative to the housing (24), there being a first seal between the second movable member (32) and the support part (46a) and a second seal between the support part (46a) and the first movable member (26).
B60T 15/02 - Valves d'application et de relâchement des freins
B60T 8/32 - 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
An electromagnetic valve comprises a yoke (10); a magnet (30a, 30b) having pole pieces (50a, 50b) defining a gap; a flexure assembly (40) having one end attached to the yoke, such that part of the flexure assembly extends into the gap, the flexure assembly having at least one resilient portion formed of a resilient material and at least one magnetisable portion, wherein that part of the flexure assembly that extends into the gap is movable between the pole pieces through an intermediate position towards which it is resiliently biased such that a resilient mechanical force is generated by deflecting the resilient portion from an undetected position; and means (20) for polarising the magnetisable portion of the flexure assembly so that the part of the flexure assembly that is movable between the pole pieces is attracted towards a pole piece by a magnetic force, thereby defining a valve state; wherein the magnetisable portion and the resilient portion of the flexure assembly are configured such that the magnetic force defining the valve state is greater than the resilient mechanical force.
F16K 31/06 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant
F16K 31/08 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant utilisant un aimant permanent
A vehicle braking system (10) comprising a brake actuator (23) which is operable to adopt a brake apply position in which the actuator (23) may apply a braking force to a vehicle wheel and a brake release position in which the actuator (23) may release any braking force applied to a vehicle wheel, the brake actuator (23) having a spring brake chamber (23a) and a spring and being configured such that supply of pressurised fluid to the spring brake chamber (23a) causes the brake actuator (23) to move against the biasing force of the spring to the brake release position and release of pressurised fluid from the spring brake chamber (23a) causes the brake actuator (23) to move under the action of the spring to the brake apply position, the system (10) further including a supply line (2) whereby the spring brake chamber (23a) is, in use, connected to a supply of pressurised fluid, and an emergency brake apply valve (20) which has a control port (20c) which is connected to the supply line (12), the emergency brake apply (1) valve (20) being configured automatically to connect the spring brake chamber (23a) to a low pressure region when the pressure at the control port (20c) falls below a predetermined level, wherein the system further includes an electrically operable emergency braking override valve (36), (36') which has a first port (36a), (36a') which is connected to the supply line (12) and a second port (36b), (20) (36b') which is connected to the control port (20c) of the emergency brake apply valve (20) and which, when supplied with sufficient electrical power, acts to prevent loss of fluid pressure at the control port (20c) of the emergency brake apply valve (20).
A vehicle braking system (110) comprising a brake actuator (112), a braking control valve assembly (114) and an emergency apply valve (122) having a control port (122d) which is connected to the supply line (116) by means of a further control line. According to the invention, the braking system (110) is also provided with a electrically operable brake apply valve (134) in the further control line for roll -over protection and/ or stability control, the brake apply valve (134) being movable between a first position in which fluid flow along further control line is permitted and a second position in which fluid flow along the further control line is substantially prevented and the control port (122d) of the emergency apply valve (122) is connected to a low pressure region.
B60T 8/32 - 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
B60T 8/24 - 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 l'inclinaison du véhicule ou son changement de direction, p. ex. dans un virage
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
A valve assembly (110) having a housing (124) into which are provided a first port (112), a second port (114) and a third port (116), and in which are located a first movable member (126), a second movable member (132) and a third movable member (152), the first movable member (126) being movable between a first position which causes the second movable member (132) to close the first port (112) to prevent any substantial flow of fluid through the first port (112), whilst the second (114) and third (116) ports remain open, a second position which causes the third movable member (152) to close the third port (116) to prevent any substantial flow of fluid through the third port (116), whilst the first (112) and second (114) ports remain open and flow of fluid between the first (112) and the second (114) part is permitted, and a third position which causes the second movable member (132) to close the first port (112) and the third movable member (152) to close the third port (116) to prevent any substantial flow of fluid through either the first port (112) or the third port (116), wherein the second movable member (132) and the third movable member (152) are separate such that relative movement between the second movable member (132) and the third movable member (152) is permitted.
B60T 8/36 - 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 clapet-pilote sensible à une force électromagnétique
B60T 15/18 - Valves-relais triples ou autres permettant l'application ou le relâchement par à-coups et qui sont actionnées par la variation de pression dans le tuyau de frein reliant les cylindres de frein ou organes équivalents à la source d'air comprimé, au vide ou à l'atmosphère
B60T 15/02 - Valves d'application et de relâchement des freins
A method of operating a braking system for a trailer (16) having at least one axle on which are mounted two ground-engaging wheels (26, 26', 28, 28'), one of which is provided on a first side of the trailer (16) whilst the other is provided on a second side of the trailer (16), each wheel (26, 26', 28, 28') having a brake which is operable independently of the other by means of a brake actuator assembly (26b, 26b', 28b, 28b', 46, 46'), the method including controlling the difference between the brake pressure applied by the brake to the wheel (26, 28)on the first side of the trailer (16) and the brake pressure applied by the brake to the wheel (26', 28') on the second side of the trailer (16) so that it does not exceed a predetermined maximum pressure differential.
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 7/20 - 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 spécialement adaptés pour remorques, p. ex. dans le cas d'un décrochage de la remorque
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 8/32 - 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
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 air braking unit for use in an air braking system. The air braking unit is arranged to be positioned, in use, at a vehicle wheel, and comprises an inlet for receiving, in use, compressed air from a central source. At least one first valve is arranged to selectively allow compressed air from the inlet to enter a wheel brake chamber in use. At least one second valve is arranged to selectively allow air from the brake chamber to be released via an outlet to the atmosphere in use and control means controls the first and second valves to operate to selectively control the air pressure in the brake chamber in use.
B60T 13/16 - Dispositions relatives à l'alimentation en pression utilisant directement des pompes, c.-à-d. sans interposition d'accumulateurs ou de réservoirs
B60T 8/36 - 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 clapet-pilote sensible à une force électromagnétique
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
A braking control system comprising a first source of pressurised fluid (82a), a second source of pressurised fluid (82b, 90), a modulator (70), a brake actuator (10), and a plurality of valves (84, 94, 96, 98), the modulator (70) having a supply inlet (72) which may be connected to either of the sources of pressurised fluid via a first fluid flow line which extends between a first one of the valves (84) and the supply inlet (72), and a control inlet (78) which may be connected to either of the sources of pressurised fluid via a second fluid flow line and a second one of the valves (94), a delivery port (74) which is connected an inlet (11) of the actuator (10), and an exhaust outlet (76) which vents to a low pressure region, the modulator (70) being operable to move between a build position in which flow of fluid from the supply inlet (72) to the delivery port (74) is permitted whilst flow of fluid through the exhaust outlet (76) is substantially prevented, and an exhaust position in which flow of fluid between the delivery port (74) and the exhaust outlet (76) is permitted, whilst flow of fluid through the supply inlet (72) is substantially prevented, wherein a portion of the fluid flow line connecting the second source of pressurised fluid (82b, 90) to the first valve (84) also provides a proportion of the connection between the second source of pressurised fluid (82b, 90) and the second valve (94).
B60T 8/32 - 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
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
A brake actuator and control valve assembly, the brake actuator (10) having a housing (12) in which is provided a movable assembly (18, 20, 30) including: a brake actuating element (20) which is adapted, in use to be connected to a vehicle brake, the movable assembly (18, 20, 30) being movable from a brake apply position which, in use, results in the application of the brake, and a brake release position which, in use, results in the release of the brake, the brake actuator (10) further including a lock (34, 44, 46) which is operable to change from a locked configuration in which movement of the movable assembly (18, 20, 30) from the brake apply position to the brake release position is prevented, and a released configuration in which movement of the movable assembly (18, 20, 30) from the brake apply position to the brake release position is permitted, wherein the lock (34, 44, 46) includes a fluid pressure operated actuator (34), supply of pressurised fluid to which results in the lock changing from either the locked configuration to the release configuration or vice versa, and the control valve assembly includes an electrically operable lock control valve (100) by means of which supply of pressurised fluid to the lock actuator (34) is controlled, the lock control valve (100) having an inlet port (100a) which is connected to a source of pressurised fluid (80), a delivery port (100b) which is connected to the lock actuator (34) and a valve member which is movable between a first position in which the inlet port (100a) is substantially closed, and a second position in which the inlet port (100a) is connected to the delivery outlet (100b), the valve member being movable between the first and second positions only on the supply of an electrical current to the lock control valve (100).
A brake actuator (10) having a housing (12) in which is provided a movable brake actuating assembly (18, 30), the brake actuating assembly (18, 30) being movable between a brake apply position which, in use results in the application of a brake to which the actuator (10) connected, and a brake release position which, in use, results in the release of the brake, the brake actuator (10) further including a lock (34) which is operable to prevent movement of the brake actuating assembly (18, 30) from the brake apply position to the brake release position, the brake actuating assembly (18, 30) including a first movable member (18), a second movable member (30) and a resilient biasing element (32) which extends between the second movable member (30) and the first movable member (18) and which, if one of the first or second movable members (18, 30) is moved relative to the other from an equilibrium separation, exerts a force tending to return the first (18) and second (30) movable members to the equilibrium separation, the brake actuator (10) further including compliance control chamber (50) between the first movable member (18) and the second movable member (30), the compliance control chamber (50) having a port (58a) and being sealed such that flow of fluid into or out of the compliance control chamber (50) other than through the port is substantially prevented.
A valve assembly including a housing (24') provided with an inlet port (12'), a delivery port (14'), and an exhaust port (16'), the valve assembly further including a first movable element (32'), a first valve member (34a') and a second valve member (26a'), the first movable element (32') being engageable with the first valve member (34a'), engagement of the first valve member (34a') and first movable element (32') substantially preventing flow of fluid between the inlet port (12') and the delivery port (14'), and the first movable element (32') also being engageable with the second valve member (26a'), engagement of the second valve member (26a') with the first movable element (32') substantially preventing flow of fluid between the delivery port (14') and the exhaust port (16'), the valve assembly further including a second movable element (26') which divides the housing (24') into a control chamber (22') and a main chamber (30') and which is movable relative to the housing (24') under the influence of fluid pressure in the control chamber (22') and main chamber (30'), wherein the first valve member (34a') extends from the housing (24') towards the first movable element (32') through an aperture provided in the second movable element (26').
B60T 8/32 - 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
B60T 8/36 - 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 clapet-pilote sensible à une force électromagnétique
B60T 8/38 - 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 des clapets du type commandé par un relais ou assisté
B60T 13/68 - Commande électrique des systèmes de freins à fluide sous pression par valves commandées électriquement
B60T 15/02 - Valves d'application et de relâchement des freins
A valve assembly (10) having a supply inlet (12) which is adapted to be connected to a source of pressurised fluid, a delivery port (14) which is adapted to be connected to a working volume, and a exhaust outlet (16) which vents to the atmosphere, wherein the exhaust outlet (16) is provided with a valve member (60, 60') which is movable between an open position in which flow of fluid through the exhaust outlet (16) is permitted, and a closed position in which the valve member (60, 60') substantially prevents flow of fluid through the exhaust outlet (16), characterised in that a resilient biasing means (62) is provided which biases the valve member (60, 60') into the closed position.
B60T 17/00 - Éléments, parties constitutives ou accessoires des systèmes de freins non couverts par les groupes , ou , ou présentant d'autres caractéristiques intéressantes
A braking system including a source of pressurised fluid, an actuator, and a fastener for securing the source of pressurised fluid to the actuator, the fastener comprising a substantially hollow portion to enable fluid communication between the actuator and the source of pressurised fluid.
B60T 13/00 - 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
B60T 17/04 - Aménagement des tuyauteries, valves de tuyauterie, p. ex. valves de coupure, couplages ou tuyaux flexibles
B61G 5/06 - Couplages non prévus ailleurs pour, ou combinés avec, des couplages ou des raccords de conduits pour fluides ou de câbles électriques
B61G 5/08 - Couplages non prévus ailleurs pour, ou combinés avec, des couplages ou des raccords de conduits pour fluides ou de câbles électriques pour conduits pour fluides
B62D 53/12 - Couplages de traction de cinquième roue à accrochage automatique
F16L 29/00 - Raccords comportant des moyens pour couper le courant de fluide
24.
METHOD OF AND APPARATUS FOR MONITORING THE PERFORMANCE OF A VEHICLE BRAKING SYSTEM
A method of providing an indication of the performance of the braking system of a vehicle comprising a tractor and a trailer in which, during a braking event, a braking control pressure signal is generated in response to driver demand for braking, the braking control pressure signal indicating a braking control pressure which is representative of the degree of braking required by the driver, and is transmitted to braking systems provided on the tractor and trailer, the method including the steps of determining an average value of the braking control pressure during the braking event, determining an average value of the vehicle deceleration during the braking event, and using both the average braking control pressure and average vehicle deceleration to assign the braking event to one of a plurality of categories.
B60T 7/20 - 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 spécialement adaptés pour remorques, p. ex. dans le cas d'un décrochage de la remorque
B60T 8/17 - Utilisation de moyens de régulation électriques ou électroniques pour la commande du freinage
B60T 8/88 - 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
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
A vehicle (10) having a braking system comprising a braking demand input device (30) which is operable by a driver to generate a braking demand signal indicative of the level of vehicle braking required, an electronic braking control unit (32) which receives an electrical input signal representative of the level of vehicle braking indicated by the braking demand signal and which generates an appropriate brake operation output signal for transmission to at least one brake actuator assembly (34, 38), transmission of a brake operation output signal to a brake actuator assembly (34, 38) causing a brake to operate to apply a braking force to the vehicle (10), wherein the vehicle (10) also comprises a switch (40) which is connected to the electronic braking control unit (32) and which is operable to transmit a signal to the electronic braking control unit (32) which causes the electronic braking control unit (32) to transmit a brake operation output signal to the brake actuator assembly (34, 38), the brake operation signal causing the brake actuator assembly (34, 38) to apply a low level braking force to the vehicle (10), characterised in that the braking system is further configured such that during the application of the low level braking force, operation of the braking demand input device causes the electronic braking control unit (32) to modify the brake operation signal so as to increase the braking force by a predetermined amount.
B60T 7/08 - Organes d'attaque de la mise en action des freins par l'entremise d'une personne actionnés à la main
B60P 1/04 - Véhicules destinés principalement au transport des charges et modifiés pour faciliter le chargement, la fixation de la charge ou son déchargement avec un mouvement de basculement de l'élément supportant ou contenant la charge
26.
METHOD OF MONITORING A VEHICLE AND APPARATUS THEREFOR
A method of monitoring a vehicle (10) using a sensor to measure a parameter which depends on the forces acting on the vehicle (10) generally normal to the surface over which the vehicle is travelling, transmitting a force signal from the sensor to a processing apparatus (16), the processing apparatus (16) processing a plurality of said force signals to determine a value indicative of the forces acting on the vehicle generally normal to the surface over which the vehicle (10) is travelling over a specific period of time.
B60G 17/015 - Suspensions élastiques permettant d'ajuster les caractéristiques des ressorts ou des amortisseurs de vibrations, de réguler la distance entre la surface porteuse et la partie suspendue du véhicule ou de bloquer la suspension pendant l'utilisation pour s'adapter aux conditions variables du véhicule ou du terrain, p. ex. en fonction de la vitesse ou de la charge les moyens de régulation comportant des éléments électriques ou électroniques
B60G 17/0165 - Suspensions élastiques permettant d'ajuster les caractéristiques des ressorts ou des amortisseurs de vibrations, de réguler la distance entre la surface porteuse et la partie suspendue du véhicule ou de bloquer la suspension pendant l'utilisation pour s'adapter aux conditions variables du véhicule ou du terrain, p. ex. en fonction de la vitesse ou de la charge les moyens de régulation comportant des éléments électriques ou électroniques caractérisés par leur réponse à un mouvement ou une condition donnés ou à l'action du conducteur, lors du déplacement du véhicule à une condition externe, p. ex. un mauvais état de la route, un vent latéral
B60G 17/0185 - Suspensions élastiques permettant d'ajuster les caractéristiques des ressorts ou des amortisseurs de vibrations, de réguler la distance entre la surface porteuse et la partie suspendue du véhicule ou de bloquer la suspension pendant l'utilisation pour s'adapter aux conditions variables du véhicule ou du terrain, p. ex. en fonction de la vitesse ou de la charge les moyens de régulation comportant des éléments électriques ou électroniques caractérisés par l'utilisation d'un mode de traitement du signal ou d'une méthode de commande spécifiques pour la détection des dysfonctionnements
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 vehicle braking system including an electrical braking control unit (18) having an electrical input for an electrical braking demand signal, the electrical input being electrically connected to an electrical signal transmitting device (24), wherein the system further includes a fluid flow line (34) and a pressure sensor (36) which is connected to an electrical input of the electrical signal transmitting device (24) and is adapted to transmit an electrical pressure signal indicative of the pressure in the fluid flow line (34) to the electrical input of the electrical signal transmitting device (24), the electrical signal transmitting device (24) being operable to transmit the electrical pressure signal received from the pressure sensor (36) to the electrical braking control unit (18).
B60T 8/88 - 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
B60T 13/66 - Commande électrique des systèmes de freins à fluide sous pression
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
A method of controlling travel of a vehicle equipped with an antilock braking system, the method comprising the steps of determining if there is potential for one or more wheels (14a, 14b, 14c, 16a, 16b, 16c) of the vehicle to lift off the ground, and if such a potential exists, deactivating the anti-lock braking system in respect of the wheels with the potential to lift off the ground so that the speed of these wheels is not taken into consideration when determining if anti- lock braking control is required, applying a low-level test braking force to the wheel or one of the wheels (14a, 14b, 14c) that has the potential to lift off the ground, monitoring the speed of the said wheel or wheels (14a, 14b, 14c), and if the test braking force causes the speed of the or one or more of the monitored wheels (14a, 14b, 14c) to fall below a predetermined percentage of the vehicle speed, triggering a stability alarm signal and/or applying a controlled braking force to one or more of the wheels (16a, 16b, 16c) which do not have potential to lift off the ground so as to reduce the vehicle speed.
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 system comprising a first braking demand signal generator, a modulator which is connected to a source of pressurised fluid via a first fluid flow line, the modulator being connected to and having an input for receipt of a braking demand signal from the braking demand signal generator and further connected to a first braking chamber in a fluid operated brake actuator via a second fluid flow line, the modulator being adapted, on receipt of a braking demand signal from the first braking demand signal generator, to allow pressurised fluid to pass from the source of pressurised fluid to the actuator, the actuator being configured such that passage of pressurised fluid from the modulator into the first chamber causes the actuator to move to a brake apply position, the system further comprising a second braking demand signal generator which is connected to a controller, the controller having an input for receipt of a braking demand signal from the second braking demand signal generator and controlling flow of fluid from the source of pressurised fluid to a second chamber of the brake actuator, the brake actuator being further provided with a mechanical biasing element which biases the actuator into a position which causes the vehicle brake to be applied and being configured such that the passage of pressurised fluid into the second chamber causes the actuator to be moved against the force of the mechanical biasing element out of the position which causes the vehicle brake to be applied, wherein the second chamber is connected to the source of pressurised fluid via at least a portion of the first fluid flow line.
A braking system (10) including a brake (12), a brake actuator (14) which is operable to apply a force to the brake (12) to effect braking, an automatic braking controller (16), and a manually operable brake actuator control device (18), the brake actuator control device (18) including a manually operable control part (22) which is movable between a release position and an apply position and which is adapted such that movement of the control part (22) by a user from the release position to the apply position causes the brake actuator (14) to apply the brake (12) and movement of the control part by a user from the apply position to the release position causes the brake actuator (14) to release the brake (12), the brake actuator control device (18) being characterised in that it further includes a control actuator (26) which engages with the control part (22) and which is adapted to effect movement of the control part (22) from the release position to the apply position on receipt of an appropriate signal from the automatic braking controller (16).
A valve (40) comprising an inlet port (44), an outlet port (48), an exhaust port (60) and a diaphragm (50) disposed between the inlet (44) and exhaust (60) ports which is moveable, in response to air pressure within the valve (40), between a first position in which it seals the exhaust port (60) and a second position in which the exhaust port (60) is open, there being one or more projections (64) associated with the exhaust port (60) on which the diaphragm (50) is able to rest in its first position.
F16K 7/17 - Dispositifs d'obturation à diaphragme, p. ex. dont un élément est déformé, sans être déplacé entièrement, pour fermer l'ouverture à diaphragme plat, en forme d'assiette ou en forme de bol disposé pour être déformé contre un siège plat le diaphragme étant actionné par pression d'un fluide
F16K 11/02 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout
B60T 11/32 - Valves automatiques de coupure en cas de tuyaux défaillants
Disclosed is a system providing tracking and wireless communications for remote diagnostics of a vehicle which transmits data communicated over a vehicle system's CAN bus to a remote location, which is adapted to use data received from a vehicle in order to compare the performance of the vehicle and/or of the operator of the vehicle with the performance of other vehicles and/or operators of other vehicles, which incorporates advanced power management functionality for conserving power, particularly when the system is disconnected from a main power supply, and which facilitates the identification of vehicles that have not reported back to the system or that have not moved within a specified time period.
