초록 ▼

A hybrid vehicle drive for a motor vehicle includes an internal combustion engine and an electric machine which is selectively coupled with the internal combustion engine. The electric machine can be operated as a generator and as a motor. Regulation device which responds to a reference signal prede

A hybrid vehicle drive for a motor vehicle includes an internal combustion engine and an electric machine which is selectively coupled with the internal combustion engine. The electric machine can be operated as a generator and as a motor. Regulation device which responds to a reference signal predetermined by a reference signal preset device are provided for the active damping of vibrations, especially torsional vibrations in the torque transmission path between the internal combustion engine and wheels of the motor vehicle driven by the latter. The regulation device also respond to sensing device which deliver an actual-value vibration signal containing vibration information about a rotating structural component of the motor vehicle and control the load torque exerted on the internal combustion engine by the electric machine for reducing or eliminating the vibrations of the structural component. An analysis device for determining a frequency spectrum of the actual-value vibration signal is associated with the regulation device. The reference signal preset device establishes a reference signal with predetermined frequency spectrum. The regulation device control the frequency spectrum of the load torque exerted on the internal combustion engine by the electric machine such that excessive spectral vibrations of the actual-value vibration signal are reduced or eliminated.

대표청구항 ▼

[ I claim:] [1.] 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 vehic

[ I claim:] [1.] 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.