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| 基于随机线性最优控制的汽车主动悬架控制器设计 | |
| 引用本文： | 桑楠,魏民祥,白玉. 基于随机线性最优控制的汽车主动悬架控制器设计[J]. 郑州大学学报(工学版), 2012, 33(3): 56-60 |
| 作者姓名： | 桑楠 魏民祥 白玉 |
| 作者单位： | 1. 南京航空航天大学 能源与动力学院,江苏南京210016;常州工学院 机电工程学院,江苏常州213002 2. 南京航空航天大学 能源与动力学院,江苏南京,210016 3. 常州工学院 机电工程学院,江苏常州,213002 |
| 摘 要： | 通过建立车辆半车模型的动力学方程,应用随机线性最优控制理论设计了车辆主动悬架LQR控制器,并在Matlab/Simulink环境中构建了实现该控制策略的仿真模型,对仿真结果进行了时域和频域分析,结果表明:具有LQR控制器的主动悬架能有效减小车身加速度和悬架动挠度,可以更好地改善车辆的舒适性. |
| 关 键 词： | 主动悬架 LQR控制器 最优理论 Matlab |
Design of Active Suspension Controller Based on Stochastic Linear Optimal Control Theory |
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| SANG Nan , WEI Min-xiang , BAI Yu. Design of Active Suspension Controller Based on Stochastic Linear Optimal Control Theory[J]. Journal of Zhengzhou University: Eng Sci, 2012, 33(3): 56-60 | |
| Authors: | SANG Nan WEI Min-xiang BAI Yu |
| Affiliation: | 1.Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;2.School of Mechanical & Electrical Enginering,Changzhou Institute of Technology,Changzhou 213002,China) |
| Abstract: | To establish the dynamics equations of the vehicle half-car model,LQR(linear quadratic regulator) controller of active suspension is designed based on stochastic linear optimal control theory,and a simulation model is built in Matlab/Simulink environment for the realization of this control strategy.The analysis of simulation results in the time domain and frequency domain shows that active suspension with the LQR controller can effectively reduce the body acceleration and suspension deflection,and can be used to improve vehicle comfort. |
| Keywords: | active suspension LQR controller optimal theory Matlab |
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