重庆理工大学学报2026，Vol.40Issue(7)：19-31,13.DOI:10.3969/j.issn.1674-8425(z).2026.04.003
汽车转向制动分岔的耦合特征分析
Analysis of vehicle steering and braking coupling bifurcation characteristics
摘要
Abstract
This paper investigates the nonlinear coupled dynamics and bifurcation characteristics of vehicle steering-braking systems.Based on a five-degree-of-freedom(5DOF)steering-braking vehicle dynamics model,a sinusoidally varying steering angle is adopted as the front wheel input,and the 5DOF model is transformed and extended into a seven-degree-of-freedom(7DOF)autonomous system by incorporating the steering angle variable and its differential relationships.The effects of front wheel steering angle amplitude and braking torque on nonlinear bifurcation behavior under coupled steering-braking conditions are analyzed.By employing phase portraits,Poincaré sections,state variable time series,and Lyapunov exponent spectra,the dynamics evolution processes affected by these two parameters are investigated.Furthermore,the coupling characteristics of steering-braking bifurcation are further explored.Results indicate both steering angle amplitude and braking torque exert significant impacts on the system's bifurcation behavior and dynamic evolution.Moreover,there exists a nonlinear coupling relationship between them.关键词
汽车非线性动力学/前轮转角幅值/制动力矩/分岔/动力学演变过程Key words
vehicle nonlinear dynamics/front-wheel steering angle amplitude/braking torque/bifurcation/dynamics evolution process分类
交通工程引用本文复制引用
王宪彬,张英哲,包文龙,韩秋圆,冯文文..汽车转向制动分岔的耦合特征分析[J].重庆理工大学学报,2026,40(7):19-31,13.基金项目
国家自然科学基金项目(52175497) （52175497）
黑龙江省重点研发计划(JD22A014) （JD22A014）
