侧风干扰下汽车稳定性控制研究  

Research on vehicle stability control under crosswind disturbance

作　　者：漆瑞 杨军 郑焱[1] 倪彰[1] 戚顺顺 QI Rui;YANG Jun;ZHENG Yan;NI Zhang;QI Shunshun(School of Automotive and Transportation Engineering,Jiangsu University of Technology,Changzhou 213001,China)

机构地区：[1]江苏理工学院汽车与交通工程学院,江苏常州213001

出　　处：《江苏理工学院学报》2024年第4期52-62,共11页Journal of Jiangsu University of Technology

基　　金：教育部产学合作协同育人项目“面向车辆工程(智能)及动力工程专业的智能网联汽车类教学内容与课程体系改革”(22087009222519)。

摘　　要：文章针对高速行驶的汽车在侧风干扰下易发生横摆失稳与驶离预定路径的问题,建立了考虑侧风作用的整车八自由度动力学模型,并利用相平面法,识别侧风环境中汽车所处的状态,设计了主动前轮转向(AFS)与直接横摆力矩(DYC)协调控制器,对侧风环境中汽车行驶进行稳定性控制。在侧风干扰工况下,对控制算法进行仿真验证,结果表明:具有AFS与DYC协调控制器车辆的侧向位移小于无控制及单一控制器的车辆,横摆角速度、质心侧偏角和侧向加速度均得到明显改善,提高了车辆在侧风环境中行驶的安全性和稳定性。In this paper,to address the problem that high-speed vehicles are prone to cross-swing instability and driving away from the predetermined path under the under crosswind disturbance,an eight-degree-of-freedom dynamics model of the whole vehicle considering the role of side winds is established,and the phase plane method is used to identify the state of the vehicle in the side-wind environment,and an active front-wheel steering(AFS)and direct yaw moment control(DYC)coordinated controller is designed to carry out the stability control of automobile travelling in the crosswind environment.Under crosswind interference conditions,simulation verification is conducted on the control algorithm,and the results show that the lateral displacement of vehicles with AFS and DYC coordinated controllers is smaller than that of vehicles without control or a single controller.The yaw rate,center of mass sideslip angle,and lateral acceleration are significantly improved,enhancing the safety and stability of vehicles driving in crosswind environments.

关 键 词：侧风干扰 稳定性控制 相平面法 协调控制 

分 类 号：U461.6[机械工程—车辆工程]