The invention discloses a brake-by-wire system with a hydraulic backup braking function. The system comprises a brake pedal and a brake master cylinder connected with the brake pedal, wherein the brake master cylinder is in brake communication with a wheel end of each driving wheel through a hydraulic assembly so as to realize hydraulic brake parking, the brake pedal is further provided with a pedal travel sensor, the pedal travel sensor is electrically connected with a central brake controller, and the central brake controller is connected with a torque motor in the wheel end brake so as to achieve electric control brake parking. The system is mainly advantaged in that not only electric control brake parking can be realized, in addition, under the condition that electric control brake parking fails, braking performance is achieved through hydraulic braking and parking, moreover, a torque motor is used as a driving source, elements such as a planetary gear and a sun gear are combined for speed reducing and torque increasing, the whole structure is closely fused with an inner friction block, the structure is compact, the occupied space is small, transmission is stable, the weight islight, and output driving force is large.
本发明揭示了一种具有液压备份制动的线控制制动系统,包括刹车踏板以及与其连接的制动主缸,所述制动主缸通过液压组件与每一行驶轮的轮端制动连通,以实现液压制动驻车;刹车踏板上还设有一踏板行程传感器,所述踏板行程传感器与中央制动控制器电性连接,所述中央制动控制器连接于所述轮端制动内的力矩电机,以实现电控制动驻车。本发明的有益效果主要体现在:本发明不仅可以实现电控制动驻车,而且可以在电控制动驻车失效的情况下,通过液压制动驻车来完成制动性能,同时,利用力矩电机作为驱动源,结合行星齿轮、太阳齿轮等元件进行减速增扭,整个结构与内摩擦块紧密融合,结构紧凑,占用空间小,传动平稳,重量轻,输出的驱动力大。
Brake-by-wire system with hydraulic backup braking function
具有液压备份制动的线控制制动系统
2020-07-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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