Patent ID: 9156457
Filing Date: 2015-10-13
Classification: B60T

Abstract:
1. An electro-hydraulic brake system comprising: a master cylinder to generate hydraulic pressure according to pedal force to a brake pedal; a reservoir provided at an upper portion of the master cylinder to store oil; an intermediate pressure accumulator to store hydraulic pressure; a first motor and a first pump to suction oil through a channel connected to the reservoir and discharge the suctioned oil to the accumulator to create hydraulic pressure in the intermediate pressure accumulator in braking; a second motor and a second pump coupled to an output side of the intermediate pressure accumulator to increase responsiveness in braking; two hydraulic circuits, each of the hydraulic circuits being connected to two wheels; a flow control valve and a pressure reducing valve provided between the intermediate pressure accumulator and the two hydraulic circuits to control pressure transmitted from the intermediate pressure accumulator to a wheel cylinder installed at each of the wheels; and a check valve provided at the output side of the intermediate pressure accumulator, wherein the intermediate pressure accumulator is disposed between the first pump and the check valve.