湖北汽车工业学院学报2025，Vol.39Issue(3)：20-26,33,8.DOI:10.3969/j.issn.1008-5483.2025.03.004
基于变传动比设计的线控4WS车辆操纵稳定性研究
Research on Maneuverability Stability of Wire-controlled 4WS Vehicles Based on Variable Transmission Ratio Design
摘要
Abstract
In order to meet the maneuverability stability requirements of wire-controlled four-wheel steering(4WS)vehicles under complex driving conditions,a variable transmission ratio was designed by considering the influence of road adhesion coefficient on the yaw rate gain and optimized using an im-proved S-function.By considering the influence of the steering wheel angle during high-speed driving,the transmission ratio was further optimized through fuzzy control.A front-wheel steering controller based on the variable transmission ratio was designed.Based on the sliding mode control of yaw rate and the sideslip angle of the center of gravity,an integrated active rear-wheel steering controller adap-tive to vehicle speed was designed.Co-simulation tests using Carsim and Simulink were conducted un-der different speeds in double lane change scenarios.The results demonstrate that compared to tradi-tional mechanical steering systems,the wire-controlled 4WS vehicle with variable transmission ratio further enhances maneuverability and mobility at low speeds and improves stability at high speeds.关键词
线控转向/可变传动比/主动后轮转向/滑模控制Key words
wire-controlled steering/variable transmission ratio/active rear-wheel steering/sliding mode control分类
交通工程引用本文复制引用
赵培亮,周红妮,潘锐..基于变传动比设计的线控4WS车辆操纵稳定性研究[J].湖北汽车工业学院学报,2025,39(3):20-26,33,8.基金项目
湖北省教育厅科研计划优秀中青年项目(Q201918050) （Q201918050）
湖北省创新基金(2015XTZX0414) （2015XTZX0414）
