两种输入控制模型下的汽车非线性运动稳定性分析  

Nonlinear Motion Stability Analysis of Vehicle by Two Kinds of Steering Input

作　　者：赵又群[1] 尹浩[1] 张丽霞[1] 吴杰[1] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《机械科学与技术》2005年第10期1138-1140,共3页Mechanical Science and Technology for Aerospace Engineering

基　　金：高等学校博士学科点专项科研基金项目(20040287004);南京航空航天大学科研创新基金项目(S0401-022);江苏省博士后科研项目(A类)计划资助

摘　　要：在汽车转向运动力矩输入控制模型和转角输入控制模型基础上,考虑了轮胎侧向力的非线性,研究了汽车在不同附着系数路面上的运动稳定性,定量地揭示和比较了汽车转向力矩输入控制模型与转角输入控制模型运动稳定性的内在规律性和相互关系,以及轮胎侧向力非线性对汽车运动稳定性的影响。实例表明,利用本文的运动稳定性分析方法,可以指导汽车辅助转向系统的优化设计,从而改善汽车的操纵稳定性能。The motion stability of vehicles driven on different roads is analyzed based on the model ot vehicle with steering angle input and steering moment input and tire nonlinearity taken into consideration. The motion stabilit of both vehicles with steering angle input and vehicles with steering moment input is quantitatively revealed and compared in terms of their intrinsic laws and relationship. The vehicle handling characteristics and motion stability can be improved through the motion stability analysis presented in the paper. The assistant steering system can also be optimized by using the results of the present analysis.

关 键 词：运动稳定性 轮胎非线性 汽车操纵性 

分 类 号：O324[理学—一般力学与力学基础] U461[理学—力学]