This inverter control method controls switching of an inverter in a vehicle provided with: a motor which delivers torques to driving wheels; an inverter which converts DC power into AC power to supplythe AC power to the motor; and a DC power supply which supplies DC power to the inverter. The inverter control method includes the steps: determining whether power supplying to the inverter is stopped; executing a short-circuit switching control for putting a switching element included in the inverter in an on-state when the power supplying to the inverter is stopped; and acquiring, as a variablefor indicating a state of the motor, a motor state parameter that is a determination index about whether vibration occurs in the vehicle. In addition, when the power supplying to the inverter is stopped, the short-circuit switching control is stopped on the basis of the acquired motor state parameter, before the vibration occurs in the vehicle.
一种逆变器控制方法,在车辆中对逆变器的通断进行控制,该车辆具有:电动机,其向驱动轮传递扭矩;逆变器,其将直流电力转换为交流电力而供给至电动机;以及直流电源,其向逆变器供给直流电力,在逆变器控制方法中,判定向逆变器的电力供给是否停止,在向逆变器的电力供给停止的情况下,执行使逆变器所具有的开关元件成为接通状态的短路通断控制,取得电动机状态参数,该电动机状态参数是表示电动机的状态的变量并且成为车辆是否发生振动的判定指标。而且,在停止向逆变器的电力供给的情况下,基于所取得的电动机状态参数,在车辆发生振动以前停止短路通断控制。
INVERTER CONTROL METHOD AND INVERTER CONTROL SYSTEM
逆变器控制方法及逆变器控制系统
2021-01-01
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |