Patent ID: 9139183
Filing Date: 2015-09-22
Classification: B60T

Abstract:
1. An integrated electronic hydraulic brake system for a vehicle comprising: an integrated hydraulic control device comprising a master cylinder to generate hydraulic pressure based on pedal force of a brake pedal, a reservoir coupled to an upper portion of the master cylinder to store oil, two hydraulic circuits, each of the hydraulic circuits being connected to two different pairs of wheels of the vehicle, an accumulator to store a predetermined level of pressure, flow control valves and pressure reducing valves connected to the two hydraulic circuits to control pressure transmitted from the accumulator to wheel cylinders installed at the wheels, a balance valve to connect the two hydraulic circuits and control pressure difference between the two hydraulic circuits, a pedal simulator connected to the master cylinder to provide reaction force of the brake pedal, and a simulation valve to control connection between the master cylinder and the pedal simulator; and a power source unit comprising a pump to suction oil from the reservoir and discharge the suctioned oil to the accumulator to generate pressure in the accumulator and a motor to drive the pump, wherein the power source unit is configured as a separate unit to isolate noise generated from the power source unit, and the integrated hydraulic control device and the power source unit are connected to each other via an external pipe, wherein the balance valve is provided on a path connecting a first inlet path provided between one of the hydraulic circuits and one of the flow control valves to a second inlet path provided between the remaining hydraulic circuit and the remaining flow control valve, wherein the flow control valves are connected in parallel to the accumulator.