Active vibration reduction control apparatus for hybrid electric vehicle and method thereof

An active vibration reduction control method for a hybrid electric vehicle, the active vibration reduction control method comprising steps of:

• generating, by a reference signal generator, a reference signal and a first phase based on a first rotational angle of a first motor which is coupled to one side of an engine;
• extracting, by a vibration extractor, a vibration signal from a second motor which is coupled to another side of the engine;
• determining, by a coefficient determiner, a filter coefficient which minimizes a phase difference between the reference signal and the vibration signal;
• detecting, by a phase determiner, a second phase corresponding to the phase difference between the reference signal and the vibration signal using a first speed signal of the first motor and the filter coefficient;
• detecting, by a phase deviation amount detector, a third phase for compensating for a phase delay using the first speed signal of the first motor;
• and
• generating, by a synchronization signal generator, an antiphase signal of a shape of an actual vibration, using the first phase, the second phase, or the third phase, in order to determine a compensating force of the first motor.