The invention relates to the technical field of hydraulic braking, and discloses a brake master cylinder, a hydraulic braking system and a vehicle. The brake master cylinder comprises a master cylinder body and a piston, a cylinder cavity is formed in the master cylinder body, and the piston can be arranged in the cylinder cavity in a sealed and sliding mode and divides the cylinder cavity into a master cylinder front cavity and a master cylinder rear cavity. The main cylinder rear chamber is provided with an oil inlet and an oil outlet; the main cylinder front chamber is provided with a liquid supplementing port and a pressurizing oil port; the piston can close the pressurizing oil port in a non-braking state, and the piston can move towards the rear cavity of the main cylinder to open the pressurizing oil port when bearing driving force from the brake pedal. Due to the fact that the piston can seal the pressurizing oil port in the non-braking state, pressurizing hydraulic oil can be prevented from directly entering the front cavity of the main cylinder, and mistaken braking is avoided. During braking, the piston is driven by the brake pedal to move towards the rear cavity of the main cylinder so that the pressurizing oil port can be opened, and pressurizing hydraulic oil can enter the front cavity of the main cylinder through the pressurizing oil port so as to provide braking assistance for the piston.

    本发明涉及液压制动技术领域,公开一种制动主缸、液压制动系统和车辆。制动主缸包括主缸体和活塞,主缸体内形成有缸腔,活塞能够密封滑动地设置在缸腔内并将缸腔分隔为主缸前腔室和主缸后腔室;主缸后腔室具有进油口和出油口;主缸前腔室具有补液口和增压油口;活塞在未制动状态时能够封闭增压油口,活塞受到来自制动踏板的驱动力时能够朝向主缸后腔室移动以打开增压油口。由于活塞在未制动状态时能够封闭增压油口,可以避免增压液压油直接进入到主缸前腔室内,避免发生误制动。在制动时,活塞在制动踏板的驱动下朝向主缸后腔室移动才能够打开增压油口,增压液压油可以通过增压油口进入到主缸前腔室以向活塞提供制动助力。


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    Title :

    Brake master cylinder, hydraulic brake system and vehicle


    Additional title:

    制动主缸、液压制动系统和车辆


    Contributors:
    CHENG JIA (author) / ZHU XIAOJUN (author) / LI JUNFENG (author) / GUO HAI (author)

    Publication date :

    2021-09-28


    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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