Method for reducing vibrations in a drive system e.g. a motor vehicle drive-train and/or combustion engine, involves impressing a specified frequency on to an oppositional torque

摘要

A method for reduction of oscillations in a drive system, in which an electrical machine (12) generates a torque which opposes a fluctuation in the drive torque of a combustion engine (11). The oppositional torque is periodically impressed with a frequency in dependency on an absolute crank-shaft position of the combustion engine the frequency remaining in a fixed relationship to the speed (revs) of the combustion engine.