Patent ID: 11873884
Assignee: VALEO EMBRAYAGES
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. A method for actuating a vehicle torque transmission device as claimed in claim 1, the first clutch being of normally open type, the second clutch being of normally open type, and a the connection element being of the normally open type, the method comprising the following successive steps in a speed increase phase of the vehicle:
a) closing the first clutch and opening the second clutch in order to transmit torque via the first transmission mechanism having a first gear ratio, and closing the connection element,
b) keeping the first clutch closed and keeping the second clutch open in order to transmit torque via the first transmission mechanism having the first gear ratio, and keeping the connection element closed,
c) progressively opening the first clutch and progressively closing the second clutch in order to transmit torque via the second transmission mechanism having a second gear ratio,
d) opening the connection element in order to prevent the driving of the first output element of the first clutch by the transmission member, and
e) keeping the first clutch open and keeping the second clutch closed in order to transmit torque via the second transmission mechanism having the second gear ratio, while keeping the connection element open.