HYBRID ELECTRIC VEHICLE AND VIBRATION CONTROL METHOD THEREOF

A hybrid electric vehicle and a vibration control method thereof is provided. The vibration control method of the hybrid electric vehicle includes: receiving rotor angle information of a motor generated based on information detected by a resolver; receiving first engine rotation-angle information of an engine generated based on information detected by a cam angle sensor or a crank angle sensor; generating engine rotation-angle candidates based on the rotor angle information; and identifying a second engine rotation-angle based on the engine rotation-angle candidates and the first engine rotation-angle information.