【作者】 李杰； 张喆； 张英朝； 姜祖啸；

【Author】 Li Jie;Zhang Zhe;Zhang Yingchao;Jiang Zuxiao;State Key Laboratory of Automobile Dynamic Simulation,Jilin University;

【机构】 吉林大学汽车动态模拟国家重点实验室；

【摘要】 汽车在高速行驶时的方向稳定性和操纵稳定性受侧风的影响非常明显。本文以汽车系统动力学理论为基础,运用CarSim仿真软件建立了国产某轿车的特性参数模型和相应的气动系数特性曲线模型,模拟了侧风对高速行驶轿车的作用过程,并对比分析了驾驶员对转向盘角度修正与否对方向稳定性和操纵稳定性的影响,认为驾驶员修正转向盘转角是影响汽车直线行驶能力和操纵稳定性的关键因素。提出完善侧风仿真环境以及考虑侧风条件下汽车转向操纵稳定性研究的必要性。更多还原

【Abstract】 It is very obvious that the influence of crosswind on directional stability and handling and stability of vehicle with high speed.Based on the theory of vehicle system dynamics and using simulation software CarSim,the characteristic parameters model and the corresponding aerodynamic coefficients curve model of a certain Chinese-made cars are established.The process of crosswind effecting on the vehicle with high speed is simulated.The influences between the driver amends and not amends the steering wheel angle to keep the directional stability and handling and stability are analyzed.It is the key factor that the driver amends the steering wheel angle to keep the car driving in a straight-line.Suggesting to improve simulation environment of the crosswind and consider the necessary of crosswind effecting on the handling and stability of vehicle under the conditions of steering.更多还原