基于联合仿真的直线电机主动悬架协调控制研究  

Study on the coordination control of active suspension employing linear motor based on co-simulation

作　　者：孟祥鹏[1] 汪若尘[1] 郗欢欢[2] 孙泽宇[1] 谢健[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013 [2]山东理工职业学院汽车工程学院,山东济宁272067

出　　处：《广西大学学报（自然科学版）》2015年第6期1365-1371,共7页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51575240);江苏省自然科学基金项目(BK2012714);江苏省"高层次人才培养333工程"

摘　　要：为了更准确地描述直线电机主动悬架系统的动态性能,本文建立了直线电机主动悬架整车SIMPACK多体动力学模型,基于八板块假说,将整车姿态解耦成垂直、俯仰和侧倾三种运动姿态,针对三种运动姿态的特征分别设计了相应的模糊控制器,建立了MATLAB/Simulink控制模型,并进行了联合仿真。结果表明:与传统悬架相比,直线电机主动悬架的车身质心加速度、俯仰角加速度和侧倾角加速度均方根值平均降低了16.28%、8.7%和16.64%,该控制策略可行,有效改善了车身的运动姿态,提高了汽车的抗俯仰和抗侧倾能力,协调了车辆行驶安全性和乘坐舒适性。In order to more accurately describe the dynamic performance of active suspension employing linear motor,the multi-body dynamics model of vehicle was established in SIMPACK software.Based on eight plate hypothesis,the vehicle bodywork attitude was decoupled into three motions which were vertical,pitching and rolling. For the three motions,the fuzzy controllers were designed respectively,and its control model was established in Matlab / Simulink,then the co-simulation was carried on. The results of simulation show that,compared with the traditional suspension,the rootmean-square（ RMS） of bodywork barycenter accelerations,pitch angle acceleration and roll angle acceleration of active suspension employing linear motor reduced 16. 28%,8. 7% and 16. 64% respectively,the fuzzy control strategy can attain a significant improvement in the vehicle bodywork attitude,and hence enhance the anti-pitch and anti-roll capability of vehicle and also coordinate the driving safety and ride comfort of vehicle.

关 键 词：车辆 直线电机主动悬架 联合仿真 协调控制 平顺性 

分 类 号：U463.33[机械工程—车辆工程]