乘用车急转工况下主动安全控制技术研究

Research on Active Safety Control Technology of Passenger Vehicle under Extreme Turning

以提高乘用车在急转工况下的安全性为目标,结合乘用车的动力学特性,以急转工况为研究背景,对乘用车的主动控制系统的安全性进行了研究。基于模型预测控制的基本原理设计了主动转向控制器,并通过Matlab/Simulink与CarSim进行联合仿真,以验证所设计主动转向控制器的合理性。结果表明,主动控制系统可保证乘用车辆快速跟踪所选取的参考轨迹,且系统响应迅速,乘用车主动转向过程较为安全稳定。

In order to improve the safety target of the passenger vehicle under the condition of extreme turning,combining with the dynamic characteristics of the passenger vehicle,the safety of the active control system of the passenger vehicle is studied under the condition of extreme turning.The active steering controller was designed based on the basic principle of model predictive control,and the joint simulation was conducted by Matlab/Simulink and CarSim to verify the rationality of the designed active steering controller.The results show that the active control system can ensure that the selected reference track can be quickly tracked by the passenger vehicle,and the system responds quickly,and the active steering process of the passenger vehicle is safe and stable.