Control unit, for use in flow blade of motor vehicle air outlet, has electrically controlled piezo-brake operating on rotating wheel, through which rotating wheel can be released, broken or blocked

摘要

The unit has an electrically controlled piezo-brake (3) operating on a rotating wheel (1), through which the rotating wheel can be released, broken or blocked. The piezo-brake detects force acting on the rotating wheel. A pivot axle (2) or a linear actuator is connected with the rotating wheel, such that the piezo-brake directly acts on the rotating wheel, pivot axle or the linear actuator.