Patent ID: 8657390

Claim:
A vehicle brake fluid pressure control apparatus comprising: a pump configured to pressurize a brake fluid so as to increase a fluid pressure within a wheel brake; a pressure regulator valve configured to adjust the fluid pressure within the wheel brake which is a normally open electromagnetic valve which is configured to adjust a differential pressure between an upstream side and a downstream side thereof in accordance with a current value; and a control unit configured to control a current which is caused to flow to the pressure regulator valve, the control unit including a memory part configured to store a valve closing map which shows a relationship between the differential pressure between the upstream side and the downstream side of the pressure regulator valve and an output current value for closing the pressure regulator valve and a valve opening map which shows a relationship between the differential pressure and an output current value for opening the pressure regulator valve, wherein when attempting to reduce the fluid pressures within the wheel brakes by opening the pressure regulator valve, the control unit executes a current value switching control which controls a current flowing to the pressure regulator valve by selecting alternately an output current value of the valve opening map and an output current value of the valve closing map.