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    • 8. 发明授权
    • Hydraulic brake system
    • 液压制动系统
    • US08430459B2
    • 2013-04-30
    • US13193002
    • 2011-07-28
    • Seung Young ParkSeong Ho Choi
    • Seung Young ParkSeong Ho Choi
    • B60T8/34
    • B60T8/4872B60T8/4068
    • Disclosed is a hydraulic brake system capable of reducing periodic pressure pulsation caused by operation of a piston. The hydraulic brake system includes a master cylinder generating braking hydraulic pressure by operation of a brake pedal, a wheel brake provided to each of front right and left wheels and rear right and left wheels of a vehicle to receive the braking hydraulic pressure from the master cylinder to generate braking force, a solenoid valve provided to each of an inlet and an outlet of each of the wheel brakes to control flow of the braking hydraulic pressure, a low pressure accumulator temporarily storing oil, which is ejected from the wheel brakes during operation of the solenoid valves, a pump compressing the oil stored in the low pressure accumulator such that the oil is ejected towards the wheel brakes or the master cylinder as needed, and an orifice disposed near an outlet port of the pump. Further, a damper unit is disposed between the outlet port of the pump and the orifice to reduce pressure pulsation caused by operation of the piston, thereby improving product reliability through noise reduction during brake control.
    • 公开了一种液压制动系统,其能够减少由活塞的操作引起的周期性压力脉动。 液压制动系统包括主缸,其通过操作制动踏板产生制动液压;车轮制动器,其设置在车辆的前右后轮和左车轮以及后左右车轮中,以从主缸接收制动液压 以产生制动力,设置在每个车轮制动器的入口和出口中的每一个的电磁阀,以控制制动液压的流动,临时存储油的低压蓄能器,其在操作期间从车轮制动器弹出 电磁阀,泵压缩存储在低压蓄能器中的油,使得油根据需要朝向车轮制动器或主缸喷射,以及设置在泵的出口附近的孔口。 此外,在泵的出口和孔口之间设置有阻尼器单元,以减少由活塞的操作引起的压力脉动,从而通过制动控制期间的噪声降低来提高产品的可靠性。