According to the motor controller, the control unit, the electric driving system and the electric vehicle, the three-phase winding of the driving motor and the power battery can be reused to form the discharging loop, the power battery is heated, the heating time can be shortened, and the heating efficiency can be improved. The motor controller comprises three bridge arms, the two ends of each bridge arm are used for being connected with the positive electrode and the negative electrode of the power battery respectively, the operation modes of the three bridge arms comprise a heating mode and an inversion mode, and when the three bridge arms operate in the inversion mode, the three bridge arms are used for receiving power supplied by the power battery and supplying power to U, V and W phase windings of the driving motor; when the three bridge arms operate in a heating mode, the upper bridge switch tube of one of the three bridge arms and the lower bridge switch tubes of the other two bridge arms are conducted in a circumferential mode, or the lower bridge switch tube of one of the three bridge arms and the upper bridge switch tubes of the other two bridge arms are conducted in a periodic mode.
本申请提供一种电机控制器、控制单元、电驱动系统以及电动车辆,可以复用驱动电机的三相绕组与动力电池形成放电回路,实现加热动力电池,并且可以具有缩短加热时长以及提升加热效率。电机控制器包括三个桥臂,每个桥臂的桥臂两端分别用于连接动力电池的正极和负极,三个桥臂的运行模式包括加热模式和逆变模式,其中:三个桥臂的运行于逆变模式时,三个桥臂用于接收动力电池供电,为驱动电机的U、V、W相绕组供电;三个桥臂的运行于加热模式时,三个桥臂中的一个桥臂的上桥开关管、另两个桥臂中下桥开关管周性地导通,或者,三个桥臂中的一个桥臂的下桥开关管、另两个桥臂中上桥开关管周期地导通。
Motor controller, control unit, electric driving system and electric vehicle
一种电机控制器、控制单元、电驱动系统以及电动车辆
2023-01-31
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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