Abstract: A transmission system for a vehicle, comprising a dynamic controllable clutch (DCC) and a friction clutch. The transmission system may further comprise a controller comprising instructions stored in non-transitory memory that are executable by the controller to adjust a state of the DCC and a state of the friction clutch to selectively engage a first gear ratio and a second gear ratio for providing torque transfer from an input to an output of the transmission system.

Abstract: The friction clutch comprises: a driving part comprising at least one first friction element; a driven part comprising a hub and at least one second friction element drivingly connected for rotation with the hub; at least one spring configured to press the friction elements of the driving part and of the driven part against each other by applying an elastic force on these friction elements; and an actuation unit arranged to bring about opening of the friction clutch by applying directly or indirectly on the at least one spring an actuating force directed in the opposite direction to the elastic force so as to move the friction elements away from each other. The actuation unit comprises a thrust bearing, at least one force transmission member and a hollow actuating member arranged to apply the actuating force on the at least one spring via the thrust bearing and the at least one force transmission member. The hollow actuating member is arranged on the opposite side of the hub to the at least one spring.

Abstract: The friction clutch comprises: a driving part comprising at least one first friction element; a driven part comprising a hub and at least one second friction element drivingly connected for rotation with the hub; at least one spring configured to press the friction elements of the driving part and of the driven part against each other by applying an elastic force on these friction elements; and an actuation unit arranged to bring about opening of the friction clutch by applying directly or indirectly on the at least one spring an actuating force directed in the opposite direction to the elastic force so as to move the friction elements away from each other. The actuation unit comprises a thrust bearing, at least one force transmission member and a hollow actuating member arranged to apply the actuating force on the at least one spring via the thrust bearing and the at least one force transmission member. The hollow actuating member is arranged on the opposite side of the hub to the at least one spring.