Vehicle gauge power module output evaluation method and device and motor controller

The invention provides a vehicle gauge power module output evaluation method and device and a motor controller, and relates to the technical field of motor control, and the method comprises the steps: determining a vehicle working mode, carrying out simulation operation, and determining a motor operation state curve; wherein the motor operation state curve is a change curve of the motor torque relative to the rotating speed; determining a motor operation evaluation point according to the change of the motor operation state curve; real-time current is calculated at the motor operation evaluation point so as to carry out power module output evaluation; the problems that the output evaluation workload is large and operation is complex under the full working condition of an existing vehicle, or the result accuracy is not enough due to evaluation only based on the limiting working condition are solved. 本发明提供了一种车规功率模块输出评估方法、装置及电机控制器，涉及电机控制技术领域，包括：确定车辆工作模式，进行仿真运行，确定电机运行状态曲线；其中，所述电机运行状态曲线为电机扭矩相对转速的变化曲线；根据所述电机运行状态曲线的变