The use of one-way clutches on the

The use of one-way clutches on the rear axle to immobilize the powertrain is well known, and engaging the rear axle is a relatively straightforward procedure. As soon as engine speed is applied to the cardan shaft and the wet clutch is actuated, the rear axle is “overtaken” and the one-way clutch is locked. On a simple one-way clutch, the manner in which the rear axle is engaged by the prior actuation of the wet clutch is unfavourably abrupt. However, in the case of the Schaeffler solution, engagement of the rear axle is damped and only possible if the one-way clutch is being actuated by the wet clutch. The clamping function of the one-way clutch facilitates a significantly higher torque capacity than that of a comparable wet clutch. In forward direction the wet clutch is only being used as an actuation system.