The invention provides a fault processing method of a traction driving system and the traction driving system. The traction driving system comprises a motor controller and a motor, and the method comprises the steps of obtaining fault state information of the traction driving system; obtaining a direct current end bus voltage of the motor controller; determining whether the motor enters a short-circuit mode or an idling mode based on the direct current end bus voltage and the fault state information; when it is determined that the motor enters the short-circuit mode, obtaining the state information of all power switch devices in the motor controller, and the state information of the power switch devices being used for reflecting whether each power switch device breaks down or not; and according to the state information of the power switch devices, controlling the power switch devices to execute corresponding operations, so that the motor works in the short-circuit mode. When the traction driving system breaks down, the motor can be in a safe state.
本发明提供了一种牵引驱动系统的故障处理方法和牵引驱动系统,其中,牵引驱动系统包括电机控制器和电机,方法包括:获取所述牵引驱动系统的故障状态信息;获取所述电机控制器的直流端母线电压;基于所述直流端母线电压和所述故障状态信息,确定电机进入短路模式或空转模式;当确定电机进入短路模式时,获取所述电机控制器中所有功率开关器件的状态信息,所述功率开关器件的状态信息用于反映各功率开关器件是否发生故障;根据所述功率开关器件的状态信息,控制所述各功率开关器件执行相应的操作,以使所述电机工作在短路模式下。本发明能够在牵引驱动系统出现故障时,使得电机处于安全的状态。
Fault processing method of traction driving system and electric vehicle
一种牵引驱动系统的故障处理方法和电动车辆
2021-05-28
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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