The invention discloses a fault diagnosis and control method of an automobile vacuum pump system. The method comprises the steps: after a vehicle is started and a brake pedal is not stepped on, executing the starting fault detection step of a vacuum pump system, and respectively detecting the fault states of a low-voltage storage battery, a power assisting system controller, a vacuum pump and a vacuum degree sensor in the vacuum pump system; then storing fault codes and giving out fault warning. The method has the advantages that the diagnosis accuracy is high, the control is reasonable, and the control and diagnosis of the vacuum pump system can be more comprehensively and reliably realized.
本发明公开了一种汽车真空泵系统的故障诊断及控制方法,包括:在车辆启动后且在制动踏板未踩下时,进入真空泵系统的启动故障检测步骤,分别检测真空泵系统中的低压蓄电池、助力系统控制器、真空泵、真空度传感器的故障状态并存储故障代码、给出故障提醒。本发明的优点在于:诊断准确率高,控制合理,能够更加全面可靠的实现真空泵系统的控制和诊断。
Fault diagnosis and control method of automobile vacuum pump
一种汽车真空泵的故障诊断及控制方法
2020-08-28
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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