Motor heating control method, motor controller, motor controller assembly and electric vehicle

The invention discloses a motor heating control method, a motor controller, a motor controller assembly and an electric automobile, and the motor heating control method comprises the steps: obtaining the target heating power of a motor; determining motor control parameters in a plurality of heating periods according to the target heating power; and controlling the motor to operate according to the motor control parameters in the plurality of heating periods, so that the motor is kept in a static state, and heat generated by each phase winding of the motor in each heating period is equal. According to the technical scheme, the heating efficiency of the star-connected asynchronous motor in a static state can be improved. 本发明公开一种电机发热控制方法、电机控制器及其总成和电动汽车，其中，电机发热控制方法包括获取电机的目标发热功率；根据所述目标发热功率确定若干个发热周期中的电机控制参数；根据所述若干个发热周期中的电机控制参数控制所述电机运行，以使所述电机保持静止状态且在每一所述发热周期中所述电机的各相绕组产生的热量相等。本发明技术方案可提高星形连接的异步电机静止时的发热效率。