ACTIVE VIBRATION CONTROL APPARATUS FOR HYBRID ELECTRIC VEHICLE

摘要

The present invention relates to an active vibration control apparatus and method for a hybrid electric vehicle, which generate torque for reducing the vibration of a first motor by controlling the amplitude and phase of a reference signal. To achieve this, the active vibration control apparatus for a hybrid electric vehicle comprises: a vibration extracting part which extracts a vibration signal from a second motor; a reference signal generating part which generates a reference signal and a phase on the basis of the rotation angle of the first motor; a coefficient determining part which determines a filter coefficient where the phase difference between the generated reference signal and the extracted vibration signal is minimized; a phase determining part which detects the phase difference between the reference signal and the vibration signal using the speed signal of the first motor and the determined filter coefficient; a phase deviation detecting part which detects the phase for compensating delay; a reverse phase signal generating part which generates a reverse phase signal by using the phase generated by the reference signal generating part, the phase detected by the phase determining part, and the phase detected by the phase deviation detecting part; and a torque generating part which generates torque for reducing vibration.