Patent ID: 6102144
Filing Date: 2000-08-15
Classification: B60G,B60K,B60W,F16F,Y02T,Y10S

Abstract:
A hybrid drive for rotating a drive wheel of a motor vehicle, comprising:an internal combustion engine having an output shaft;a clutch having an input element connected to said output shaft and an output element;a transmission drivably connected to the drive wheel of the motor vehicle;a drive shaft connecting said output element of said clutch to said transmission;an electric machine connected to the drive shaft, said electric machine operable as a generator for receiving a torque force from said drive shaft and outputting an electric current and as a motor for receiving an electric current and transmitting a torque force to said drive shaft;a sensor generating a vibration signal representing vibration information about vibrations in a rotating structural component of said hybrid drive, wherein said rotating structural component comprises one of said internal combustion engine, said output shaft, said clutch, said drive shaft, said transmission, and said drive wheel;an analyzing device connected to said sensor and determining an actual frequency spectrum of said vibration signal;a reference signal preset device generating a reference signal comprising a predetermined frequency spectrum; anda regulator connected to said reference signal preset device and said analyzing device for comparing said actual frequency spectrum to said reference signal, said regulator controlling said electric machine to reduce said vibrations at frequencies at which said vibrations exceed said predetermined frequency spectrum, wherein said regulator further comprises a frequency limiter which limits said actual frequency spectrum to frequencies greater than a predetermined frequency threshold.