类菱形车侧向动力学建模与仿真  

Modeling and Simulation of Lateral Dynamics for Rhombic Vehicle

作　　者：查云飞[1] 钟勇[1] 闫晓磊[1] 

机构地区：[1]福建工程学院

出　　处：《计算机仿真》2014年第1期166-171,共6页Computer Simulation

摘　　要：在车辆的侧向运动和横摆运动优化建模问题的研究中,传统系统模型易造成与实际运动状态的偏差。在类菱形车线性二自由度模型的基础上,加入了纵向运动自由度来描述类菱形车在转向运动中车速的变化,并应用Pacejka轮胎模型描述轮胎侧偏特性,构建了具有实时在线仿真功能的类菱形车非线性三自由度侧向动力学模型。通过蛇行试验验证了类菱形车具有较好的操纵稳定性,对比分析非线性三自由度侧向动力学模型的仿真结果和蛇行试验结果,具有很好的一致性。The linear two-degree freedom model includes only lateral and yaw, which causes the result that the model was different from the fact. In the paper, the longitudinal degree of freedom was added in Rhombic Vehicle＇ s linear two-degree of freedom model to describe the change of vehicle＇ s velocity when steering, and the tire＇ s lateral deviation was described with the Pacejka＇ s tire model, therefore the Rhombic Vehicle＇ s nonlinear three degree of freedom model with capacity of real time online simulation was modeled. The slalom test suggests that the Rhombic Vehicle has good handling stability, and the comparison between the simulation of the nonlinear three freedom lateral dynamics model and the slalom test proved that the result has good consistency.

关 键 词：类菱形车 侧向动力学 非线性 蛇行试验 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]