The invention relates to the technical field of vehicle fault diagnosis, in particular to an electric vehicle insulation fault diagnosis processing method. Comprising the steps that if it is detected that the insulation value of a high-voltage loop is lower than a set threshold value during vehicle running, an air conditioner compressor is controlled to stop working; detecting the insulation value of the high-voltage loop again; if the insulation value of the high-voltage loop returns to normal, the air conditioner compressor is forbidden to operate, and the insulation fault is not processed; and if the insulation value of the high-voltage loop is still lower than the set threshold value, insulation fault processing is carried out according to an insulation fault processing flow. The safety of the electric automobile is improved, the probability of power loss/power limitation/speed limitation caused by insulation faults is reduced, and the automobile using experience of customers is improved.
本发明涉及车辆故障诊断技术领域,具体涉及一种电动车绝缘故障诊断处理方法。包括若在车辆运行时,检测到高压回路的绝缘值低于设定阈值,则控制空调压缩机停止工作;再次对高压回路的绝缘值进行检测;若高压回路的绝缘值恢复正常,则禁止空调压缩机运行,且不对绝缘故障进行处理;若高压回路的绝缘值依然低于设定阈值,则按照绝缘故障处理流程进行绝缘故障处理。提高了电动汽车的安全性,降低了因绝缘故障导致的动力丢失/限功率/限速的几率,提升了客户用车体验。
Electric vehicle insulation fault diagnosis processing method
一种电动车绝缘故障诊断处理方法
2024-01-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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