中南大学学报（自然科学版）2017，Vol.48Issue(5)：1204-1210,7.DOI:10.11817/j.issn.1672-7207.2017.05.012
半主动悬架系统刚度动态迭代跟踪控制
Dynamic and trackable interation controls on stiffness of semi-active suspension system
摘要
Abstract
In order to improve the ride comfort of vehicles, a new control method named dynamic and trackable iteration control, which combined the advantages of semi-active suspension system, was proposed to control stiffness for semi-active suspension system. The 7POF simulation model of the vehicle was established by Matlab/Simulink. The root-mean-square values of body acceleration, dynamic suspension travel and tire load were chosen as evaluation indexes, and weight coefficients of the indexes were obtained by analytic hierarchy process method, and genetic algorithm was applied to get the optimal suspension stiffness in the typical condition. By using the dynamic and trackable iteration to control stiffness, and then according to the difference between the stiffness of computational and optimal, the correction coefficient of control algorithm was determined. Under typical conditions, parameters of control and optimization were identical, and control effects were verified under other conditions. The simulation results show that body acceleration and dynamic suspension travel decrease by 6.34% and 7.35% respectively under mixed conditions, and the ride comfort of vehicles is improved by the proposed control method.关键词
半主动悬架/刚度可控/动态迭代跟踪/遗传算法/平顺性Key words
semi-active suspension/controllable stiffness/dynamic and trackable interation/genetic algorithm/ride comfort分类
信息技术与安全科学引用本文复制引用
李仲兴,李重重,刘亚威,李美,徐兴..半主动悬架系统刚度动态迭代跟踪控制[J].中南大学学报（自然科学版）,2017,48(5):1204-1210,7.基金项目
国家自然科学基金资助项目(51575241) （51575241）
江苏省六大人才高峰资助项目(2012-ZBZZ-030) （2012-ZBZZ-030）
国家青年科学基金资助项目(51305111) （51305111）
江苏省自然科学基金资助项目(BK20131255) (Project(51575241) supported by the National Natural Science Foundation of China （BK20131255）
Project(2012-ZBZZ-030) supported by the Six Talents Peak Foundation of Jiangsu Province （2012-ZBZZ-030）
Project(51305111) supported by the Youth Science Foundation of China （51305111）
Project(BK20131255) supported by the Natural Science Foundation of Jiangsu Province) （BK20131255）
