The invention discloses a method and system for monitoring the safety state of an electric drive system, and belongs to the technical field of safety of the electric drive system.The method comprises the steps that vehicle fault information is collected, corresponding preceding-stage safety control is selected according to the vehicle fault information, and a preceding-stage control signal is generated; according to the preceding-stage control signal, monitoring a selected preceding-stage safety control execution result, and judging whether the selected preceding-stage safety control is correctly executed or not; and if the selected preceding-stage safety control is not correctly executed, outputting a backward-stage control signal. By monitoring the execution condition of preceding-stage safety state control, the motor can still enter the safety state when the whole vehicle has a serious fault and PWM control has a problem, and the safety and stability of the vehicle are ensured.
本发明公开了一种电驱动系统安全状态监控方法及系统,属于电驱动系统安全技术领域,其包括采集车辆故障信息并根据车辆故障信息选择相应的前级安全控制,生成前级控制信号;根据所述前级控制信号,对选择的前级安全控制执行结果进行监控,并判断选择的前级安全控制是否正确执行;若所选择的前级安全控制没有正确执行,则输出后级控制信号。本发明通过监控前级安全状态控制的执行情况,在整车出现严重故障且PWM控制出现问题时使电机仍可以进入安全状态,确保车辆安全性和稳定性。
Electric drive system safety state monitoring method and system
一种电驱动系统安全状态监控方法及系统
2024-11-15
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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