摘要
针对带有两级串联式ISD半主动悬架的二自由度模型,选取加权函数阵整定两级串联式ISD半主动悬架系统的性能指标,应用LMI H∞控制算法设计出两级串联式ISD半主动悬架H_∞输出反馈控制器,该方法能够有效地解决系统的鲁棒干扰抑制问题.仿真结果表明,与传统半主动悬架、两级串联式ISD被动悬架以及传统被动悬架相比,所设计两级串联式ISD半主动悬架能够有效改善汽车的乘坐舒适性和行驶安全性.
The weighted functions are selected to design the performance indicators of system, the H~ control algorithm based on the linear matrix inequalities （LMI） is applied to the design of two-stage series- connected ISD semi-active suspension in the 2 degree-of-freedom model, and the H∞ output-feedback controller is designed. The problem of the robust disturbance is solved effectively. The results indicate that in contrast to conventional semi-active suspension system, two-stage series-connected ISD suspension system and conventional suspension system, the two-stage series-connected ISD semi-active suspension system can improve the ride comfort and safe performance effectively.
出处
《车辆与动力技术》
2013年第3期21-25,共5页
Vehicle & Power Technology
基金
国家自然科学基金(50905078)
教育部博士点基金(20093227120004)
江苏大学高级人才启动基金资助项目(09JDG054)
关键词
车辆
半主动悬架
两级串联式ISD悬架
线性矩阵不等式
H∞控制
vehicle
two-stage series-connected ISD suspension
linear matrix inequalities （LMI）
H∞ control
semi-active suspension
