Apparatus for reducing belt slip

An apparatus for reducing belt slip of a vehicle, in which the vehicle includes an engine as a vibration source and an electric motor connected to the engine through a belt to transmit a torque of the engine, the apparatus comprising:

• a signal generator configured to generate a reference signal with a frequency corresponding to vibration of the engine causing the belt slip;
• an adaptive filter configured to:
• calculate a filter coefficient to remove an error value between a rotational speed of the engine and a rotational speed of the electric motor, and
• apply the calculated filter coefficient to the reference signal to generate a reference torque signal to drive the electric motor, and
• a torque compensator configured to:
• generate a belt slip compensation torque signal by changing an amplitude of the reference torque signal based on the torque of the engine, and
• apply the belt slip compensation torque signal to determine a final torque command of the electric motor.