The invention discloses a pure electric vehicle function safety fault management control method, which comprises the following steps of: setting the fault level of a part to be 6 level according to the use performance failure condition of the part, and gradually increasing the fault severity from 1 level to 6 level; vehicle system faults are divided into no faults, slight faults, non-driving function faults, driving function faults and high-voltage system faults; after the VCU receives the fault level reported by the power related part, mapping the fault level to the power system fault level according to the fault level mapping table, and carrying out bus reporting according to the highest fault level; and comprehensively determining the fault level of the whole vehicle according to the reported fault level of the parts and the fault level of the VCU, and outputting corresponding fault processing measures. According to the invention, the accuracy and convenience of electric vehicle fault diagnosis can be improved.
本发明公开了一种纯电动车辆功能安全故障管理控制方法,包括:根据零部件使用性能失效情况将部件故障等级设置为6级,并从1级至6级的故障严重程度逐步递增;将整车系统故障分为无故障、轻微故障、非驱动功能故障、驱动功能故障和高压系统故障;VCU接收到动力相关部件上报故障等级后,按照故障等级映射表映射至动力系统故障等级,并按最高故障等级进行总线上报;根据零部件上报故障等级以及VCU故障等级综合确定整车故障等级,并输出对应故障处理措施。本发明能提高电动汽车故障诊断的准确性和便捷性。
Pure electric vehicle function safety fault management control method
一种纯电动车辆功能安全故障管理控制方法
2024-07-23
Patent
Electronic Resource
Chinese
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