APPARATUS AND METHOD OF REDUCING VIBRATIONS OF HYBRID ELECTRIC VEHICLE

The invention relates to an apparatus and a method of reducing vibrations of a hybrid electric vehicle. An apparatus for reducing vibrations of a two-cylinder engine for a hybrid electric vehicle includes a reference signal generator for generating a first reference signal and a first reference phase, a speed calculator for calculating a speed of the motor based on the position of the motor, a vibration extractor for extracting a first vibration signal based on the speed of the motor, a variable filter for generating a second basic signal, a filter coefficient updater for updating the first filter coeffcient of the variable filter, a phase calculator which calcualtes a second phase difference between the first basic signal and the first vibration signal, a phase shift compensator generating a first compensation value which compensates the delay of the first vibration signal generated by the vibration extractor, a synchronization signal generator for generating a first synchronization signal synchronized with