The embodiment of the invention provides an electric driving system safety state switching strategy method and system, and belongs to the technical field of electric automobile electric driving system function safety. The method includes determining a category of an unexpected torque safety fault and determining a safety state that the current electric drive system needs to enter according to the category. According to the method and the device, the electric driving system is reasonably arranged to enter a corresponding safety state by determining the type of the unexpected torque safety fault; when the corresponding safety state fails to enter, the next-level safety state can be entered according to the preset condition; the method has the advantages of being simple in structure, good in engineering application value and capable of achieving safety protection, reducing negative effects of the safety state on the electric drive system, guaranteeing the driving comfort of a driver and avoiding unnecessary potential safety hazards.
本发明实施例提供一种电驱动系统安全状态切换策略的方法及系统,属于电动汽车电驱动系统功能安全技术领域。所述方法包括确定非预期扭矩安全故障的种类,并根据所述种类确定当前电驱动系统需要进入的安全状态。该方法与装置通过确定非预期扭矩安全故障的种类,合理地安排电驱动系统进入对应的安全状态;并可以在对应的安全状态进入失败的情况下,按预设进入下一级的安全状态;工程应用价值较好,在实现安全保护的同时,降低该安全状态给电驱动系统带来的负面影响,保障驾驶人员的驾驶舒适感以及避免出现不必要的安全隐患。
Method and system for safety state switching strategy of electric drive system
电驱动系统安全状态切换策略的方法及系统
09.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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