Abstract:
Commande d'embrayage (40) de type normalement fermé, comprenant : - une pédale d'embrayage (19), - l'embrayage (4), - un actionneur électrique (14), dont le déplacement permet de modifier la position de l'embrayage (4), cet actionneur électrique (14) comprenant un moteur électrique d'actionneur (55), et - une unité de pilotage (50) de l'actionneur électrique (14), générant des consignes visant à modifier la position de l'embrayage (4), notamment en réponse à une action de l'utilisateur du véhicule sur la pédale d'embrayage (19), l'unité de pilotage (50) étant configurée pour appliquer un mode de sécurité visant à empêcher le passage en position embrayée de l'embrayage (4) lorsqu'une défaillance prédéfinie dans la commande d'embrayage est détectée, ce mode de sécurité comprenant l'arrêt de l'alimentation électrique du moteur électrique d'actionneur (55) pour que l'embrayage (4) occupe une position de sécurité dans laquelle le couple qu'il transmet est déterminé par les forces de frottement statique exercées par l'actionneur électrique (14) sur cet embrayage (4).
Title translation:VERFAHREN ZUM BETRIEB EINES SICHERHEITSSYSTEMS ZUR KOLLISIONSVERMEIDUNG UND / ODER KOLLISIONSSCHWEREMINDERUNG in EINEM KRAFTFAHRZEUG UND KRAFTFAHRZEUG
Abstract:
A control system (44) for a clutch (18) of a manual transmission (16) in a vehicle (10) having an ECU (22), an engine (14), a pedal (26) having a sensor (42), a slave (34) in fluid communication with a master (36); and at least one input (24). The control system (44) includes a pump (50), a valve (52) in fluid communication with the slave (34) and pump (50), and a controller (46) responsive to the ECU (22) and operable in a plurality of modes for selectively cooperating with the pedal (26) to actuate the slave (34) and modulate the clutch (18) under predetermined engine (14) and vehicle (10) operating conditions. The controller (46) is movable between modes in response to signals from the ECU (22) representing predetermined changes in one or more of: engine speed, engine load, vehicle speed, transmission gear, pedal position, or input state.
Abstract:
The invention relates to a method for operating a safety system (15) for avoiding collisions and/or for reducing the severity of collisions in a motor vehicle (1) that has a clutch pedal (5) as an actuating means for manually actuating a clutch (11). The safety system (15) is designed to carry out at least one braking intervention when a collision is imminent, a clutch actuator (14) that is provided as an additional actuating means (13) being used to automatically open and close the clutch (11). In the context of at least one braking intervention of the safety system (15), the clutch actuator (14) is actuated in order to open the clutch (11) dependent on at least one item of intervention information relating to the braking intervention.
Abstract:
An engine speed synchronizer for a manual transmission with an engine clutch (3), synchronizes rotation of the engine side of the engine clutch (3) with rotation of the transmission side of the engine clutch (3) by engine speed control with reference to operation of a shift lever under condition that the engine clutch (3) is disengaged. The engine speed synchronizer determines whether or not a transmission input speed has started to change in a direction conforming to the operation of the shift lever (5); permits the synchronization in response to determination that the transmission input speed has started to change in the conforming direction; and inhibits the synchronization in response to determination that the transmission input speed has not started to change in the conforming direction.
Abstract:
The invention relates to a method for operating a clutch release system (10) of a vehicle (12) having an electrically actuable clutch release unit (64) which comprises a sensor (14) for detecting a position of a release piston (20) of the clutch release unit (64) and which comprises a control unit (22) which controls a release piston (20) as a function of a detected position of a clutch actuating device (16), and having a further sensor (18) for detecting the position of the clutch actuating device (16). According to the invention, a characteristic curve function F (54) which describes a relationship between the position of the clutch actuating device (16) and the position of the release piston (20) is taken into consideration during the actuation of the clutch release system (10), in order to obtain a consistent clutch release at a defined position of the clutch actuating device (16) despite progressive wear of the clutch release system (10). The invention also relates to a clutch release system (10).