Patent ID: 6704642
Filing Date: 2004-03-09
Classification: F01L,F02D,Y02T

Abstract:
A valve timing control apparatus of an internal combustion engine that includes a biasing device that exerts a bias force so as to bring valve timing of the engine into a predetermined state when the valve timing is in a predetermined range, said valve timing control apparatus comprising:a controller that controls the valve timing while taking into account the bias force of the biasing device; wherein: the predetermined state is between a most retarded state and a most advanced state, and the biasing device exerts the bias force so as to bring the valve timing of the engine into the predetermined state when the valve timing is on a retard side of the predetermined state; and the controller controls the valve timing while taking into account the bias force of the biasing device at least when the valve timing is on the retard side of the predetermined state.