关键词: 电驱系统；主动加热；仿真模型；实验验证

Abstract: During the development of the active heating function of the electric drive system of electric vehicles, a large number of experiments are needed to obtain the relationship between the heating capacity and its influencing factors (torque, rotational speed, current, motor angle). Therefore, the functional design is carried out, and the development cost is relatively high with a long development cycle. Therefore, this article conducts a mechanism analysis on the active heating function of the electric drive system, establishes an active heating model of the electric drive system based on the functional mechanism, and verifies the accuracy of the model through experiments. This model can be used for the simulation of the active heating function of the electric drive system. Through the simulation, the relationship data between the heating power and its influencing factors can be obtained, replacing some of the experiments required for the design and development of the active heating function, reducing the development cycle and cost, and laying the foundation for the function development.

Key words: electric drive system; active heating; simulation model; experimental verification