Valve control time controller for internal combustion engine has valve control time control device that carries out control at neutral point when cylinder identification is in undefined state

摘要

The valve control time controller has crankshaft and camshaft angle detectors (115,112), a valve control time variation device (113), a cylinder identification device (117), a valve control time detection device (117) and a valve control time control device (114,117), which carries out control at a neutral point when the cylinder identification is in an undefined state.