Patent ID: 9132817
Filing Date: 2015-09-15
Classification: B60T

Abstract:
1. A hydraulic brake system comprising: a hydraulic-pressure generating device provided for a vehicle; a reservoir provided for the vehicle; a plurality of hydraulic brakes provided for respective wheels of the vehicle, and configured to be activated by a hydraulic pressure generated by said hydraulic-pressure generating device, so as to restrain rotations of the respective wheels; and a plurality of control valve groups, each of said control valve groups including (a) an ON/OFF control valve and (b) a linear control valve that are disposed in parallel with each other, wherein said ON/OFF control valve is opened and closed by an ON/OFF control that is applied to supply of an electric current to a solenoid of said ON/OFF control valve, wherein said linear control valve is capable of continuously controlling a pressure difference between a high-pressure side and a low-pressure side of said linear control valve, by a continuous control that is applied to supply of an electric current to a solenoid of said linear control valve, and wherein said plurality of control valve groups include a plurality of reservoir-side control valve groups, each of said reservoir-side control valve groups being disposed between said reservoir and a corresponding one of brake cylinders of said hydraulic brakes.