14自由度整车半主动悬架仿真研究  

Simulation Research of Semi-active Suspension Based on Fourteen Degrees of Freedom Vehicle

作　　者：王孝鹏[1,2] 陈秀萍 刘建军[1,2] 吴龙[1,2] WANG Xiao-peng;CHEN Xiu-ping;LIU Jian-jun;WU-Long(School of Mechanical & Electronic Engineering, Sanming University, Sanming 365004, China;Engineering Research Center in Fujian Province University for Modern Mechanical Design and Manufacturing Technology, Sanming 365004, China;Zhangzhou Institute of Technology Vocational College, Zhangzhou 363000, China)

机构地区：[1]三明学院机电工程学院,福建三明365004 [2]机械现代设计制造技术福建省高校工程研究中心,福建三明365004 [3]漳州理工职业学院,福建漳州363000

出　　处：《三明学院学报》2017年第6期25-32,共8页Journal of Sanming University

基　　金：福建省中青年教师教育科研项目(JAT170529)

摘　　要：用MATLAB软件建立基于14自由度整车动力学仿真模型,计算出车身与悬架连接处的速度、悬架动行程及车身俯仰角速度作为半主动悬架控制的输入量;半主动悬架采用自适应双模糊控制器算法进行控制并采用多体动力模型对其进行验证,计算结果表明:采用双模糊控制器在改善整车行驶的舒适性与稳定性有明显作用,车身垂直加速度、俯仰角加速度、侧倾角加速度、车轮1-4悬架动行程改善非常明显,性能分别提升41.7%、47.8%、62.5%、67.2%、85.7%、47.2%、15.8%。T he simulation model of vehicle dynamics based on14degree of freedom w as established by M A T L A B software,the speed of the connection between the body and the suspension,the dynamic travel of the suspension and the pitch angle of the vehicle body are calculated as the input of the active suspension control.T he semi-active suspension is controlled by an adaptive dual-fuzzy controller algorithm and the multi-body dynamic model is used to verify it.T he results show that dual fuzzy controller plays a significant role in improving vehicle ride comfort and stability;body vertical acceleration,pitch angular acceleration,roll angle acceleration,wheel suspension dynamic travel1-4are improved significantly w hile the performance are improved by41.7%,47.8%,62.5%,67.2%,85.7%,47.2%,15.8%respectively.

关 键 词：半主动悬架 整车模型 双模糊控制 

分 类 号：U270.1[机械工程—车辆工程]