The invention discloses an efficiency improving method and device of an electric drive system, a medium and a motor controller. The efficiency improving method comprises the steps that a driver demandtorque instruction is obtained; a bus voltage of the electric drive system is acquired, and the temperature of s motor is acquired; and d-axis current and q-axis current of the motor are acquired according to the driver demand torque instruction, the bus voltage and the temperature of the motor, and the motor is controlled according to the d-axis current and the q-axis current of the motor. According to the efficiency improving method, the motor is controlled according to the bus voltage and the motor temperature of the electric drive system, accurate motor control can be achieved in the full-range section of the power battery voltage, and then the efficiency of the electric drive system can be improved, the energy consumption of a whole vehicle is reduced, and the endurance mileage of the whole vehicle is increased.
本发明公开了一种电驱动系统的效率提升方法、装置及介质、电机控制器。其中,效率提升方法包括:获取驾驶员需求扭矩指令;获取电驱动系统的母线电压,并获取电机的温度;根据驾驶员需求扭矩指令、母线电压和电机的温度获取电机的d轴电流和q轴电流,并根据电机的d轴电流和q轴电流对所述电机进行控制。该效率提升方法,根据电驱动系统的母线电压与电机温度对电机进行控制,可实现在动力电池电压全范围段进行精确电机控制,进而可提升电驱动系统的效率,降低整车能量消耗,提高整车续航里程。
Efficiency improving method and device of electric drive system, medium and motor controller
电驱动系统的效率提升方法、装置及介质、电机控制器
11.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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