本申请公开了一种双冗余全解耦的线控制动系统,该系统包括:与制动轮缸无连接的制动踏板;脚感模拟器,用于提供制动力和阻尼模拟;冗余踏板行程传感器,用于驾驶员制动时感应制动踏板的行程信号;储液罐;四个制动轮缸,对四个车轮进行制动;液压源,包括同轴连接的主电机和副电机,根据不同的制动模式控制主电机和副电机制动;控制器,用于将制动踏板的行程信号转化为电机执行指令,根据电机执行指令控制液压源的电机输出相应的液压压力。该系统可以实现无差别的冗余制动安全,当主电机失效时,备份电机可以立即接管;在需要补液的情况下,可以启动补液模式,双电机同时作用,增加驱动扭矩,缩短补液时间。
The invention discloses a dual-redundancy full-decoupling brake-by-wire system. The system comprises a brake pedal which is not connected with a brake wheel cylinder; the foot feeling simulator is used for providing braking force and damping simulation; the redundant pedal travel sensor is used for sensing a travel signal of a brake pedal when a driver brakes; a liquid storage tank; the four brake wheel cylinders are used for braking the four wheels; the hydraulic source comprises a main motor and an auxiliary motor which are coaxially connected, and the main motor and the auxiliary motor are controlled to brake according to different brake modes; and the controller is used for converting the stroke signal of the brake pedal into a motor execution instruction and controlling a motor of the hydraulic source to output corresponding hydraulic pressure according to the motor execution instruction. According to the system, undifferentiated redundant braking safety can be achieved, and when the main motor fails, the backup motor can be immediately taken over; under the condition that liquid supplementing is needed, the liquid supplementing mode can be started, the double motors act simultaneously, the driving torque is increased, and the liquid supplementing time is shortened.
双冗余全解耦的线控制动系统
2024-06-25
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |