中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2013, Vol. 32 ›› Issue (3): 497-501.DOI: 10.3969/j.issn.1674-0696.2013.03.30

• • 上一篇    下一篇

基于模拟退火算法的汽车悬架最优控制研究

孟杰,陈庆樟,张凯   

  1. 常熟理工学院机械工程学院,江苏常熟215500
  • 收稿日期:2012-04-30 修回日期:2012-07-05 出版日期:2013-06-15 发布日期:2015-03-12
  • 作者简介:孟杰(1981—),男,安徽庐江人,讲师,硕士,主要从事车辆系统动力学方面的研究。E-mail:frankman1981@163.com。
  • 基金资助:
    江苏省自然科学基金项目( BK2011367) ; 江苏省" 六大人才高峰" 资助项目( SZ2010002)

Optimal Control of Vehicle Suspension Based on the Simulated Annealing Algorithm

Meng Jie,Chen Qingzhang,Zhang Kai   

  1. School of Mechanical Engineering,Changshu Institute of Technology,Changshu 215500,Jiangsu,China
  • Received:2012-04-30 Revised:2012-07-05 Online:2013-06-15 Published:2015-03-12

摘要: 设计了一种基于模拟退火算法优化常规线性二次最优控制器权值矩阵的方法。利用该算法的随机搜索特点, 以主动悬架性能指标为目标函数对权值矩阵进行优化设计,提高了LQR控制器的设计效率和控制性能,解决了常 规线性二次最优控制器的权值矩阵确定问题。应用该方法进行了汽车悬架主动控制仿真。研究结果表明:基于模 拟退火算法优化的LQR控制器的汽车主动悬架相对于应用常规LQR控制器的主动悬架和被动悬架,能够大大改 善主动悬架的性能;同时在充分利用常规LQR控制器优势的基础上,改善了其权值矩阵确定存在的问题。

关键词: 悬架, 模拟退火算法, 最优控制

Abstract: A method based on the simulated annealing algorithm is designed to optimize the weight matrix of the LQR controller. The proposed method utilizes the random searching of the algorithm to optimize and design the weight matrices of the target function of chassis performance indexes. The proposed method improves the design efficiency and control performance of the LQR control,and solves the problem of the LQR when defining the weight matrices. The method is adopted to simulate the vehicle active chassis control. The results show that the actively controlled chassis using LQR optimized by the simulated annealing algorithm can greatly improve the chassis performance,comparing with the chassis controlled by the normal LQR and the passive one. Meanwhile,the advantage of the normal LQR is sufficiently utilized. What's more,the problem of defining the weight matrices is greatly improved.

Key words: suspension, simulatedannealingalgorithm, optimalcontrol

中图分类号: