Patent ID: 7546914

Claim:
An all-wheel transmission system comprising two mutually independent clutches operable for controlling the transfer of drive torque from a powertrain to a first axle and a second axle, wherein an input shaft is drivingly connectable to a first output shaft associated with the first axle via a first controllable friction clutch and to a second output shaft associated with the second axle via a second controllable friction clutch wherein: said first friction clutch includes of a first component rotationally connected to said input shaft, a second component rotationally connected to said first output shaft and a first actuator for actuating said first friction clutch; said second friction clutch includes a first component rotationally connected to said input shaft, a second component rotationally connected to said second output shaft and a second actuator for actuating said second friction clutch; and a bridging clutch arranged in parallel to one of said first and second friction clutches to selectively operate said one of the first and second friction clutches in a locked mode.