Patent ID: 8128059

Claim:
A solenoid valve control apparatus comprising: a base formed with passages through which a working fluid flows; a solenoid valve that includes a valve main body and a coil unit, the valve main body including a valve part and a solenoid part and being fixed to the base so as to make the solenoid part being exposed to the outside of the base, the coil unit being formed of an annular body around which a coil is wound and being arranged so as to surround the solenoid part, and the solenoid valve opening and closing the passages by the opening and closing of the valve part; a biasing member that pushes an end face of the coil unit and supports the coil unit by pressing the coil unit against the base; and a control unit that adjusts an opening of the solenoid valve by controlling the supply of current to the solenoid valve, wherein the control unit controls the supply of current during a period between the start and termination of the driving of the solenoid valve, while securing bias current for maintaining a contact state between at least an inner peripheral surface of the coil unit and an outer peripheral surface of the valve main body.