爆胎车辆动力学分析及模糊PID控制优化策略研究  

Dynamic analysis of vehicle with tire burst and study on fuzzy PID control optimization strategy

作　　者：吕侃徽[1] 张大兴[2] LYU Kanhui;ZHANG Daxing(Institute of Information Technology,Zhejiang Financial College,Hangzhou 310018,Zhejiang,China;School of Computing,Hangzhou Dianzi University,Hangzhou 310018,Zhejiang,China)

机构地区：[1]浙江金融职业学院信息技术学院,浙江杭州310018 [2]杭州电子科技大学计算机学院,浙江杭州310018

出　　处：《中国工程机械学报》2024年第2期146-151,共6页Chinese Journal of Construction Machinery

基　　金：国家自然科学资助基金资助项目(61272391,61572160)。

摘　　要：车辆通过控制系统提高行驶的稳定性,但在爆胎时容易导致车辆行驶失去稳定性,从而造成车辆发生侧翻现象。为改善车辆动力学控制系统输出效果,建立了车辆轮胎动力学模型。引用模糊比例-积分-微分(PID)控制器,给出了模糊PID控制器输出参数与误差和误差变化率的关系图。提出人群搜索算法,利用人群搜索算法迭代搜索原理对模糊PID控制器参数进行寻优。以车辆2种行驶路况为例,利用Matlab软件对爆胎车辆的稳定性进行仿真,比较和分析爆胎车辆优化控制系统的输出效果。结果显示:采用模糊PID控制系统,爆胎车辆产生的偏航角、俯仰角加速度和侧倾角加速度较大。采用人群搜索算法优化模糊PID控制系统,爆胎车辆产生的偏航角、俯仰角加速度和侧倾角加速度较小。爆胎车辆采用人群搜索算法优化后的模糊PID控制器,不仅响应速度快,而且行驶的稳定性较好。The driving stability of the vehicle is improved through the control system,but it is easy to cause the vehicle to lose its stability when the tire blows,thus causing the vehicle to roll over.In order to improve the output effect of vehicle dynamics control system,a vehicle tire dynamics model was established.The fuzzy proportion integration differentiation(PID)controller is quoted,and the relationship between the output parameters of the fuzzy PID controller and the error and the error change rate is given.The crowd search algorithm is proposed,and the parameters of the fuzzy PID controller are optimized by using the iterative search principle of the crowd search algorithm.Taking two driving conditions of vehicles as examples,the stability of tire burst vehicles is simulated using Matlab software,and the output effects of the optimized control system of tire burst vehicles are compared and analyzed.The results show that with the fuzzy PID control system,the yaw angle,pitch angle acceleration and roll angle acceleration of the vehicle with a flat tire are larger.The crowd search algorithm is used to optimize the fuzzy PID control system,and the yaw angle,pitch angle acceleration and roll angle acceleration generated by the tire burst vehicle are small.The fuzzy PID controller optimized by crowd search algorithm is not only fast in response,but also stable in driving.

关 键 词：爆胎车辆 模糊PID控制器 人群搜索算法 优化 仿真 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]