The purpose of the present invention is to attenuate pressure pulsation of a hydraulic control unit. The damping device is provided in a hydraulic pressure control unit for controlling a braking force generated at a wheel, has an inlet port connected to a discharge side of a pump and an outlet port communicating with the inlet port, and attenuates a pressure pulsation, and is provided with: a first liquid chamber communicating with the inlet port via a first opening; a second liquid chamber communicating with the first liquid chamber via a communication hole and communicating with the outlet port via a second opening; a first piston slidably provided in the first liquid chamber; a first biasing member that biases the first piston toward the first opening side; a valve body provided in the second liquid chamber and capable of opening and closing a second opening side of the communication hole; a second biasing member that biases the valve body toward the first opening side; and a protruding part which is provided on the second opening side of the first piston, can be inserted into the communication hole, and can abut against the valve body.

    目的是使液压控制单元的压力脉动衰减。衰减装置是设置在控制在车轮产生的制动力的液压控制单元,具有与泵的喷出侧连接的入口端口以及与入口端口连通的出口端口,将压力脉动衰减的衰减装置,具备:第1液室,经由第1开口与入口端口连通;第2液室,经由连通孔与第1液室连通,经由第2开口与出口端口连通;第1活塞,能够滑动地设置在第1液室;第1施力部件,将第1活塞向第1开口侧施力;阀体,设置在第2液室,能够将连通孔的第2开口侧开闭;第2施力部件,将阀体向第1开口侧施力;以及突起部,设置在第1活塞中的第2开口侧,能够插通到连通孔,能够与阀体抵接。


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    Title :

    Damping device, hydraulic control unit, and brake system


    Additional title:

    衰减装置、液压控制单元及制动系统


    Contributors:

    Publication date :

    2025-05-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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