中文摘要：

构建了基于Matlab／Simulink的EPS系统模型、H．B．Pacejka轮胎模型以及三自由度整车模型，进而应用系统集成的方法构建了集成仿真模型，在此基础上分析了EPS系统对方向盘瞬态响应品质的影响并验证了助力控制策略。结果表明集成仿真模型具有较好的动态模拟特性，EPS具有较好的稳定性且控制策略能够较好的协调转向轻便性与路感的矛盾。

英文摘要：

The simulation models of EPS system, H.B. Pacejka tyre and 3-DOF vehicle were built based on Matlab/Simulink. Then the integrated simulation model was built by the system integration method, the impact of EPS system on the transient state response quality of steering wheel was analyzed and the assistance control strategy was validated. The results show that the integrated simulation model has better dynamic simulation feature, EPS has better stability and the control strategy can coordinate successfully the contradiction between steering agility and road feel.