The invention belongs to the technical field of electric vehicles, and discloses an electric vehicle vacuum pump redundancy control system and method and an electric vehicle. The electric vehicle vacuum pump redundancy control system comprises a whole vehicle controller and a vacuum pump controller. The whole vehicle controller judges whether the vacuum pump controller fails or not when receivingan output instruction of the vacuum pump controller. When the vacuum pump controller fails, the whole vehicle controller collects a vacuum tank relative pressure signal and a brake switch signal, andgenerates a vacuum pump control signal according to the vacuum tank relative pressure signal and the brake switch signal; and the whole vehicle controller performs redundancy control on the vacuum pump according to the vacuum pump control signal. Under the normal condition, the vacuum pump is executed by the vacuum pump controller, and the whole vehicle controller conducts redundancy monitoring; when the whole vehicle controller detects that the vacuum pump controller fails, the whole vehicle controller intervenes in conducting redundancy control over the vacuum pump, and the situation that due to failure of the vacuum pump controller, vacuum assistance fails, and the driving feeling and safety are affected is avoided.
本发明属于电动汽车技术领域,公开了一种电动汽车真空泵冗余控制系统、方法及电动汽车。该电动汽车真空泵冗余控制系统包括整车控制器和真空泵控制器,整车控制器在接收到真空泵控制器的输出指令时判断真空泵控制器是否失效;整车控制器在真空泵控制器失效时,采集真空罐相对压力信号和制动开关信号,并根据真空罐相对压力信号和制动开关信号生成真空泵控制信号;整车控制器根据真空泵控制信号对真空泵进行冗余控制。本发明中正常情况下真空泵由真空泵控制器执行,整车控制器进行冗余监控,当整车控制器检测到真空泵控制器失效时,整车控制器介入对真空泵进行冗余控制,避免真空泵控制器失效导致真空助力失效影响驾乘感受及安全性。
Electric vehicle vacuum pump redundancy control system and method and electric vehicle
电动汽车真空泵冗余控制系统、方法及电动汽车
2020-11-20
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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