Valve Timing Control Apparatus and control method for Valve Timing Control apparatus

A control method of valve timing control apparatus allows promoted reponse of the decelerating mechanism for controlling phase angle change when a combustion engine starts, and control stabilization. The control method of the valve timing control device is characterized in that roatational status of an internal combustion engine is detected and drives a electric motor to control a rotation phase angle of a camshaft relative to a crankshaft so that the rotation phase angle meets the requirements of the rotational status of the internal combustion engine. when the engine stops, the rotation phase angle of the camshaft relative to the crankshaft is set as a phase angle corresponding to a required phase angle when the engine starts agains according to temperature conditions of the internal combustion engine when stops.