Patent ID: 6477993
Filing Date: 2002-11-12
Classification: F01L,F02D,G01L,Y02T

Abstract:
A solenoid valve control apparatus for controlling a solenoid valve, the solenoid valve displacing a valve element between a valve-open position and a valve-closed position by a cooperation of a resilient force of an elastic member and an electromagnetic force of a solenoid coil, comprising:strain detection means for detecting an amount of strain of the elastic member when a predetermined period has elapsed after a start of the displacement of the valve member from one of the valve-open position and the valve-closed position to the other position; and electromagnetic force adjustment means for adjusting, when the valve element is displaced from one of the valve-open position and the valve-closed position to the other position, the magnitude of the electromagnetic force to displace the valve element to the other position, to a controlled value based on the amount of strain of the elastic member detected by the strain detection means.