Noise preventing method for e.g. brake, involves appling voltage profile to stationary unit and/or preventing rotating unit during operation of brake or clutch, to move stationary unit or rotating unit with desired speeds relative to other

摘要

The method involves generating a voltage profile. The voltage profile is applied to a stationary unit (20) and/or a rotating unit (30) during the operation of the brake or clutch, to move the stationary unit or the rotating unit with desired speeds relative to the other. The voltage profile comprises a ramp profile between two stage profiles. The stationary unit and the rotating unit are made from a metallic material. An independent claim is also included for a noise protection device for a brake or a clutch.