The invention relates to an electro-hydraulic brake-by-wire device with a redundancy function and a control method. The device comprises a brake disc, calipers, a power take-off gear, a gear shaft, alead screw, a return spring, a piston nut, a sealing ring, a high-pressure oil cylinder shell, an electromagnetic clutch, a fixed seat, a hydraulic control unit, a split liquid storage tank, an energyaccumulator, a liquid storage tank, an angle sensor, a brake pedal, a brake push rod assembly, a brake master cylinder, a controller, a left friction plate and a right friction plate. Vehicle kineticenergy can be fully utilized as a power source, a driving motor is omitted, and the cost is effectively reduced. A gear power take-off mechanism is adopted to drive a high-pressure oil cylinder to generate high-pressure brake oil, and whether the high-pressure oil cylinder works or not is controlled through the electromagnetic clutch. The high-pressure oil cylinder is integrated on the brake oilcylinder, so that a brake pipeline is effectively shortened, brake pressure fluctuation caused by elastic deformation of the brake pipeline is reduced, and the brake response speed and the control precision are improved. The device has the advantages of high integration level, high response speed and low cost.
本发明涉及一种具有冗余功能的电液线控制动装置及控制方法,包括制动盘、卡钳、取力齿轮、齿轮轴、丝杠、回位弹簧、活塞螺母、密封圈、高压油缸壳体、电磁离合器、固定座、液压控制单元、分体储液罐、储能器、储液罐、角度传感器、制动踏板、制动推杆组件、制动总缸、控制器、左摩擦片、右摩擦片;本发明能够充分利用车辆动能作为动力源,取消驱动电机,有效降低成本;采用齿轮取力机构来驱动高压油缸产生高压制动油液,通过电磁离合器来控制高压油缸是否工作;通过将高压油缸集成到制动油缸上,有效缩短制动管路长度,减少制动管路弹性变形引起的制动压力波动,提高制动响应速度和控制精度;具有集成度高、响应速度快、成本低的优点。
Electro-hydraulic brake-by-wire device with redundancy function and control method
一种具有冗余功能的电液线控制动装置及控制方法
2020-04-10
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Brake-by-wire device with redundancy function and control method
European Patent Office | 2023
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