The invention provides a motor controller, a heating method of a power battery pack, a power assembly and an electric vehicle, and relates to the technical field of electric vehicles. The input end of the motor controller is used for being connected with a power battery pack, the output end of the motor controller is used for being connected with a motor, and the motor controller comprises an inverter and a controller. Wherein the input end of the inverter is used for being connected with the input end of the motor controller, and the output end of the inverter is used for being connected with the output end of the motor controller; the inverter is used for converting direct current input by the power battery pack into three-phase current and transmitting the three-phase current to the motor; and the controller is used for controlling the working state of the inverter according to the current required heating power of the motor and the current required output torque of the motor so as to adjust the three-phase current input to the motor by the inverter. By means of the scheme, a heating device of the power battery pack does not need to be additionally arranged, occupied space is reduced, cost is reduced, and the heating efficiency of the power battery pack is further improved.
本申请提供了一种电机控制器、动力电池组的加热方法、动力总成及电动车辆,涉及电动车辆技术领域。电机控制器的输入端用于连接动力电池组,电机控制器的输出端用于连接电机,电机控制器包括逆变器和控制器。其中,逆变器的输入端用于连接电机控制器的输入端,逆变器的输出端用于连接电机控制器的输出端;逆变器用于将动力电池组输入的直流电转换为三相电流并传输给电机;控制器用于根据当前所需电机发热功率和当前电机所需的输出转矩,控制逆变器的工作状态,以调节逆变器向电机输入的三相电流。利用该方案,不需增加动力电池组的加热装置,减少了空间占用,降低了成本,还提升了对动力电池组的加热效率。
Motor controller, heating method of power battery pack and power assembly
一种电机控制器、动力电池组的加热方法及动力总成
2022-04-12
Patent
Electronic Resource
Chinese
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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