Multi-mode hydraulic braking systems and control methods thereof

    公开(公告)号:US11801818B2

    公开(公告)日:2023-10-31

    申请号:US18192630

    申请日:2023-03-29

    IPC分类号: G06F17/00 B60T13/68 B60T17/22

    CPC分类号: B60T13/686 B60T17/222

    摘要: The present disclosure discloses multi-mode hydraulic braking systems and control methods thereof. The system includes a two-position three-way digital switch valve, an electromagnetic three-position three-way proportional reversing valve, a controller, a pressure detection system, a speed detection system, and a displacement detection system. The controller intelligently switches a digital braking mode, a composite braking mode, and an anti-lock braking mode after collecting a brake signal through the pressure detection system and speed detection system in real time. The present disclosure integrates an electro-hydraulic proportional control technology with the electromagnetic three-position three-way reversing valve as a control element and a digital hydraulic technology with a digital switch valve as a control element and takes into account an anti-lock function on the basis of digital and composite braking modes to ensure safety of emergency braking and improves versatility of the braking system by the controller intelligently switching the operating modes.

    FAST REPLENISHING BRAKE SYSTEM
    37.
    发明公开

    公开(公告)号:US20230311833A1

    公开(公告)日:2023-10-05

    申请号:US17708153

    申请日:2022-03-30

    发明人: Blaise J. Ganzel

    摘要: A brake system includes a source of pressurized hydraulic fluid, a plurality of wheel brakes, and an iso/dump control valve arrangement associated with at least one wheel brake. A reservoir is connected to the source of pressurized fluid and to the iso/dump control valve arrangement. A fast-replenishing circuit includes a FR iso valve, a venting valve, and a replenishing check valve. The venting and replenishing check valves are interposed between the source of pressurized fluid and the reservoir. The FR iso valve is interposed between the source of pressurized fluid and the iso/dump control valve arrangement. When the source of pressurized fluid reaches a predetermined stroke position, the FR iso valve is energized to restrict movement of fluid from at least one iso/dump control valve arrangement to the source of pressurized fluid. The source of pressurized fluid is re-stroked to draw fluid from the reservoir through the replenishing check valve.