The invention discloses a brake boosting system and a control method thereof. The brake boosting system comprises an electro-hydraulic brake system, a brake pedal, a two-position three-way electromagnetic valve, an energy accumulator, a first shuttle valve, a second shuttle valve, an ABS/ESC electromagnetic valve and a brake wheel cylinder. The brake pedal is connected with a first main cylinder; two brake circuits output by the first main cylinder are respectively connected with an inlet of the two-position three-way electromagnetic valve, and the energy accumulator is connected with an outlet of the two-position three-way electromagnetic valve; the electro-hydraulic braking system is connected with the second main cylinder; two oil outlets of the second main cylinder are respectively connected with oil inlets at one ends of the first shuttle valve and the second shuttle valve; oil inlets at the other ends of the first shuttle valve and the second shuttle valve are respectively connected with two brake circuits output by a first main cylinder; oil outlets of the first shuttle valve and the second shuttle valve are connected with an oil inlet of the ABS/ESC electromagnetic valve, and an oil outlet of the ABS/ESC electromagnetic valve is connected with the brake wheel cylinder. According to the invention, manpower backup braking and power-assisted braking can be realized, and the braking energy recovery efficiency of the vehicle is improved.
本发明公开了一种制动助力系统及其控制方法,包括电液制动系统、制动踏板、两位三通电磁阀、蓄能器、第一梭阀、第二梭阀、ABS/ESC电磁阀及制动轮缸;制动踏板与第一主缸连接;第一主缸输出的两个制动回路分别与两位三通电磁阀的进口相连,蓄能器与两位三通电磁阀的出口相连;电液制动系统与第二主缸相连,第二主缸的两个出油口分别连接第一梭阀和第二梭阀的一端进油口;第一梭阀和所述第二梭阀的另一端进油口分别与第一主缸输出的两个制动回路相连;第一梭阀和第二梭阀的出油口与ABS/ESC电磁阀的进油口连接,ABS/ESC电磁阀的出油口与制动轮缸相连。本发明能够实现人力备份制动和助力制动,并提升车辆的制动能量回收效率。
Brake boosting system and control method thereof
一种制动助力系统及其控制方法
2021-06-01
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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