Vehicular transmission stop control system

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 59/44 (2006.01) B60K 23/00 (2006.01) F16H 61/28 (2006.01) F16H 59/74 (2006.01) F16H 61/66 (2006.01) F16H 61/662 (2006.01) B60K 6/04 (2006.01)

Patent

CA 2313416

A vehicular transmission comprises an engine E, a continuously variable transmission CVT and a starting clutch 5. The driving force from the engine E is transmitted through the continuously variable transmission CVT with a speed change to a countershaft 2, and the starting clutch 5 is used to transmit this driving force from the countershaft 2 to wheels of a vehicle. The continuously variable transmission CVT is hydraulically controlled by a control valve CV which receives control signals through a line 35 from an electrical control unit ECU. After the vehicle has decelerated and stopped, and after the engine E has stopped by an idling elimination control, the electrical current that controls the control valve CV is adjusted almost to zero.

Un mécanisme d'entraînement véhiculaire est constitué d'un moteur E, d'une transmission à variation continue CVT et d'un embrayage de démarrage 5. La transmission à variation continue CVT transmet la force de propulsion du moteur E à l'arbre intermédiaire 2 avec un changement de vitesse, et l'embrayage de démarrage 5 transmet à son tour cette force de propulsion de l'arbre intermédiaire 2 aux roues d'un véhicule. La transmission à variation continue CVT est commandée hydrauliquement au moyen d'une soupape de commande CV qui reçoit des signaux de commande d'une ligne 35 en provenance d'un bloc de commande électrique. Lorsque le véhicule décélère puis s'arrête, et après que le moteur E s'arrête de tourner au moyen d'une commande servant à éliminer la marche au ralenti, le courant électrique qui commande la soupape de commande CV est réglé à près de zéro.

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