Integrated optimization of electric power steering system based on Isight

摘要

In order to take account of the vehicle steering stability and the convenience of optimization on the electric power steering system (EPS) parameters, it makes an optimization research on EPS using the Isight optimization software and Simulink platform. It builds the integrated dynamic model of the EPS system and the vehicle model with 7 DOF, and using the total variance evaluation method to establish the multi-objective optimization model of the EPS system; furthermore, completes the integrated optimization of the EPS system and the vehicle model based on the Isight and Simulink software. The results show that the optimization of EPS system integrated the vehicle model with 7 DOF makes drivers more portable and handling stability of the vehicle further promoted, at the same time, the integrated optimization based on the Isight and Simulink platform, which can save tedious derivation of the objective function process, and also make the optimization of EPS system parameters more convenient.