整车操纵稳定性数学模型研究及仿真分析  

Research and Simulation Analysis of Mathematical Model of Vehicle Handling Stability

作　　者：刘芳[1,2] 于长青 韩杰 李雪鹏 LIU Fang;YU Chang-qing;HAN Jie;LI Xue-peng(School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China;National Research Center for Technical Innovation Methods and Implementation Tools,Tianjin 300130,China;CATARC(Tianjin)Automotive Engineering Research Institute Co.,Ltd,Tianjin 300300,China)

机构地区：[1]河北工业大学机械工程学院,天津300130 [2]国家技术创新方法与实施工具工程技术研究中心,天津300130 [3]中汽研(天津)汽车工程研究院有限公司,天津300300

出　　处：《计算机仿真》2025年第3期350-357,共8页Computer Simulation

基　　金：国家创新方法工作专项(2020IM020600)。

摘　　要：参照传统汽车二自由度数学模型的构建方法,通过力学分析构建了引入影响侧向力和纵向力参数的整车操纵稳定性数学模型,并建立其MATLAB/Simulink模型,研究引入的影响侧向力和纵向力的参数对汽车横摆运动及转向特性的影响。将新建模型与传统二自由度数学模型进行对比,分析两种数学模型的不同点,定量分析影响侧向力和纵向力的参数对整车操纵稳定性的影响。利用悬架、转向和轮胎系统试验台获取整车参数并对三台试验车进行操纵稳定性试验,进而利用试验所得数据,验证新提出的整车操纵稳定性数学模型的准确性。With reference to the construction method of the traditional two-degree-of-freedom mathematical model for automobiles,a mathematical model of vehicle handling stability with the introduction of parameters affecting lateral and longitudinal forces is constructed through mechanical analysis,and a MATLAB/Simulink model is established to study the effects of the introduced parameters affecting lateral and longitudinal forces on the transverse pendulum motion and steering characteristics of the vehicle.The new model is compared with the traditional two-degreeof-freedom mathematical model to analyze the differences between the two mathematical models and to quantitatively analyze the effects of the parameters affecting the lateral and longitudinal forces on the overall vehicle handling stability.The vehicle parameters are obtained using the suspension,steering and tire system test benches and the three test vehicles are tested for handling stability,and then the data obtained from the tests are used to verify the accuracy of the proposed mathematical model for vehicle handling stability.

关 键 词：侧向力 纵向力 汽车动力学 整车操纵稳定性 数学模型 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]