侧风影响下的车辆稳定性控制  

Vehicle Stability Control in Crosswind Environments

作　　者：覃玄 张建辉 刘毅洋 岳斯坦 Qin Xuan;Zhang Jianhui;Liu Yiyang;Yue Sitan(School of Automotive Engineering,Hubei University of Automotive Technology,Shiyan 442002,China;Xiangyang Qunlong Automotive Parts Co.Ltd,Xiangyang 441100,China)

机构地区：[1]湖北汽车工业学院汽车工程学院,湖北十堰442002 [2]襄阳群龙汽车部件股份有限公司,湖北襄阳441100

出　　处：《湖北汽车工业学院学报》2024年第3期15-21,共7页Journal of Hubei University Of Automotive Technology

基　　金：湖北省教育厅指导性项目(B2017087);湖北省揭榜制科技项目(2023EBE04)。

摘　　要：为了提高车辆在侧风环境中的行驶安全和稳定性,提出了基于主动前轮转向系统的车辆侧风稳定性控制方法。首先,建立了二自由度车辆模型、气动力计算模型和AFS系统模型。然后,设计了基于模型预测控制的车辆稳定性控制器,利用主动前轮转向系统将控制器与驾驶员耦合,实现车辆侧风稳定性集成控制。最后,对不同工况下车辆侧风稳定性进行了仿真分析。结果表明,在侧风环境下,设计的集成控制系统具有良好的车道线保持能力和避障能力,但风速增大时系统可控性降低,尤其在侧风变化瞬间车辆易失控。To improve the driving safety and stability of vehicles in crosswind environments,a vehicle stability control method for crosswind environments based on an active front steering(AFS)system was proposed.Firstly,the two degree-of-freedom vehicle model,aerodynamics calculation model,and AFS system model were established.Secondly,a vehicle stability controller based on model predictive control(MPC)was designed,which was coupled with the driver by using the AFS system,so as to realize the integrated control of vehicle stability in crosswind environments.Finally,the vehicle stability in crosswind environments under different working conditions was simulated and analyzed.The experimental results show that the designed integrated control system has good lane-keeping ability and obstacle avoidance ability in crosswind environments.However,the controllability of the system decreases when the wind speed increases,and the vehicle is easy to lose control especially when the crosswind changes.

关 键 词：侧风 AFS系统 MPC 稳定性控制 

分 类 号：U270.11[机械工程—车辆工程]