摘要
在传感器噪声、参数摄动、路面干扰等因素的影响下,车辆EPS控制系统性能会不同程度下降,对汽车操纵稳定性造成一定的影响。为提高EPS控制系统性能,基于μ综合理论和鲁棒控制方法,选取相关性能指标设计了新型μ控制器,构造了装备EPS系统的整车μ综合控制系统。仿真与μ分析结果表明:基于μ综合算法的控制器具有良好稳定鲁棒性和性能鲁棒性,有效地提高了车辆操纵稳定性和安全性。
Under the effects of sensor noises, parameters perturbations and road excitations, the performance of control system for the electric power steering （EPS） of vehicle will get worse and has certain effects on the handling stability of vehicles. For improving the performance of EPS control system, based on μ synthesis theory and robust control technique, a new type ofμcontroller is designed by choosing relevant performance indicators, and a μ synthesis control system for vehicles equipped with EPS is constructed. The results of μ analysis and simulation show that the controller based on μ synthesis algorithm has robust stability and performance, and can effectively improve the handling stability and safety of vehicles.
出处
《汽车工程》
EI
CSCD
北大核心
2008年第8期705-708,712,共5页
Automotive Engineering
基金
国家自然科学基金项目(50475121)资助
关键词
电动助力转向
操纵稳定性
Μ综合
鲁棒控制
electric power steering
handling stability
μ synthesis
robust control
