The pre-tightening force adjustable tandem type brake master cylinder comprises a shell, a first-stage piston and a second-stage piston are arranged in the shell, the first-stage piston and the second-stage piston are arranged in parallel, a first-stage spring and a second-stage spring are installed at the front end of the first-stage piston and the front end of the second-stage piston respectively, and the first-stage spring and the second-stage spring are arranged in parallel. The first-stage piston is sealed by the first sealing ring and the second sealing ring, a pedal feeling is simulated through the pedal simulator, and the electric master cylinder conducts braking action. When the electric master cylinder breaks down, when a driver steps on a pedal, the first-stage piston and the second-stage piston start to move, and liquid in a first cavity composed of the shell, the first-stage piston and the second-stage piston and liquid in a second cavity composed of the shell and the second-stage piston flow to the wheel cylinder through a liquid outlet and a liquid outlet for braking. And the springs connected with the two pistons have the same structure, so that the production is convenient, the occupied volume is small, and the cost increase caused by different adjustment structures of vehicle types is avoided.
本发明公开了一种用于电控制动系统可调预紧力的串联式制动主缸,包括壳体,所述壳体内有一级活塞和二级活塞,所述一级活塞和二级活塞并联布置,所述一级活塞和二级活塞前端分别装有一级弹簧和二级弹簧,所述一级活塞被第一密封圈和第二密封圈密封,通过踏板模拟器模拟踏板感,电主缸进行制动动作。当电主缸故障时,当驾驶员踩下踏板,一级活塞和二级活塞开始运动,壳体,一级活塞和二级活塞组成的第一腔体和壳体,二级活塞组成的第二腔体内的液体通过出液口和出液口流向轮缸进行制动。并且两个活塞连接的弹簧结构相同,生产方便,占用体积小,不需要的因为车型不同调整结构,增加成本。
Tandem type brake master cylinder with adjustable pre-tightening force for electric control brake system
一种用于电控制动系统可调预紧力的串联式制动主缸
2022-05-27
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
European Patent Office | 2020
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