Patent ID: 7396314

Claim:
A method for reducing disturbing vibrations in a motor vehicle comprising the steps of: determining the frequency, vibration amplitude and phase angle of a disturbing vibration by a control and regulating device using suitable sensors; generating a compensatory vibration having substantially the same frequency and amplitude as the disturbing vibration and a vibration phase offset relative to the disturbing vibration in one of a starting clutch and gear box in a drive train of the motor vehicle; applying the compensatory vibration to at least one rotating component in a motor vehicle drive train with one of the starting clutch and gear box such that a component or components of the drive train is/are continuously or periodically braked in rotary motion when the disturbing vibrations occur or is/are excited to the compensatory vibration; and actuating one of the starting clutch or gear box in the drive train by the control and regulating device such that torque transmission capacity oscillates with the frequency of the disturbing vibration and has the vibration phase offset in relation to the disturbing vibration through which the amplitude of the disturbing vibration is reduced to a predetermined value.