The invention discloses an electro-hydraulic servo braking system with a pedal simulator. The electro-hydraulic servo braking system comprises a shell, a brake pedal, a pushing mechanism driven by the brake pedal, a braking mechanism driven by the pushing mechanism to achieve braking, a braking pipeline hydraulic valve actively controlled by the pushing mechanism and a pedal simulator used for simulating the feeling of the brake pedal. The flow direction of brake fluid in the brake pipeline between a push rod piston cavity and a fluid storage tank is adjusted through the hydraulic valve, due to the incompressibility and liquidity of the brake fluid, the brake fluid flows in the push rod piston cavity, a first piston cavity, a second piston cavity and the fluid storage tank through the brake pipeline in the process that a driver steps on or loosens the brake pedal, pedal damping and hysteresis of the brake pedal are simulated, the hydraulic valve is a mechanical valve body, auxiliary electric control equipment does not need to be arranged, when a system fails, the hydraulic valve effectively avoids the situation that the pressure of the brake fluid flowing into a piston cavity of the simulator is reduced, and the incompressibility and the fluidity of the brake fluid are improved.
本发明公开了一种带有踏板模拟器的电液伺服制动系统,包括:壳体、制动踏板、由制动踏板驱动的推动机构、由推动机构驱动实现制动的制动机构、由推动机构主动控制的制动管路液压阀和用于模拟制动踏板感的踏板模拟器。通过液压阀来调整制动液在推杆活塞腔与储液罐之间的制动管路的流向,由于制动液的不可压缩性和流动性,在驾驶员踩下或松开制动踏板的过程中,制动液通过制动管路在推杆活塞腔、第一活塞腔、第二活塞腔和储液罐中相互流动,模拟出制动踏板的踏板阻尼感和滞后感,液压阀为机械阀体,无需设置辅助的电控设备,在系统失效时,液压阀有效避免了制动液流入模拟器活塞腔的压力降低,并且通过制动液的不可压缩性和流动性。
Electro-hydraulic servo braking system with pedal simulator
带有踏板模拟器的电液伺服制动系统
2021-06-11
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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