电驱动系统台架负载模拟精度补偿算法研究

In order to ensure the accuracy of road load simulation and realize the hardware-in-the-loop test of electric drive system, a dynamic compensation algorithm of bench test is proposed in this paper. Firstly, based on the analysis on load simulation problem, the test bench inverse model algorithm is adopted. Then, for improving torque dynamic response, Kalman filter is adopted to achieve accurate compensation of model errors. Finally, on the basis of the analysis on bench accuracy, accuracy coupling compensation algorithm is put forward and verified by bench test. The results show that compensation algorithm can well achieve speed following in cycle conditions and enhance the accuracy of bench test in starting condition.