基于电力测功机的电动车辆直驶负载模拟技术研究

Research on Load Simulation of Electric Vehicle Straight- Driving Based on Electric Dynamometer

摘要:

摘要：以建立的电力测功机-永磁同步电机为试验平台，开展了电动车辆直驶负载模拟技术研究。首先，按照车辆负载转矩、转速逆向传递思路，应用MATLAB/Simulink模块建立车辆直驶的整体负载模型。其次，在城市道路工况ECE15下，通过车辆负载逆向仿真方法，得到驱动电机输出端的负载扭矩和转速，进而为试验台上应用电力测功机实现车辆直驶负载的模拟提供数据文件。最后，通过仿真分析实现了转速、转矩对工况需求的动态跟踪，验证了负载模型的正确性；并进一步对比分析仿真数据与试验数据，说明该试验模拟系统可以实现车辆直驶负载的模拟。

Abstract:

Abstract： In order to establish the power dynamometer - permanent magnet synchronous motor as the test platform, the electric vehicle Straight- Driving load simulation technology research was carried out. Firstly, according to the reverse transmission ideas of the vehicle load speed and torque, the application of MATLAB/Simulink module to establish the vehicle Straight- Driving load model. Secondly, under the urban road condition ECE15, the load speed and torque of the output end of the vehicle drive motor are obtained by the vehicle load reverse simulation method, and the data file is provided for the simulation of the vehicle Straight-Driving load on the test bench. Finally, the dynamic tracking of the speed and torque demand is realized by simulation analysis, and the correctness of the load model is verified. It is proved that the simulation system can realize load simulation of vehicle straight-driving by comparing with the simulation data and experiment data.