改装天然气汽车操纵稳定性的分析  

Study on Handling Stability of Modified Vehicle for CNG

作　　者：李永生[1] 孙玉华[1] 徐延海[1] 

机构地区：[1]西华大学交通与汽车工程学院,成都610039

出　　处：《拖拉机与农用运输车》2008年第6期65-66,69,共3页Tractor & Farm Transporter

摘　　要：以某改装天然气汽车(CNGV)为例,通过对质心位置的测量得到了该车的基本物理参数,利用MATLAB/SIMULINK软件建立了汽车操纵稳定性仿真模型,并对改装前后汽车的操纵稳定性进行了分析。结果表明,该车在改装成天然气汽车后操纵稳定性变差,且在以前安全行驶的胎压下出现了过多转向,为今后天然气汽车的改装提供了重要的理论依据。In this paper, the basic physical parameters of an automobile modified for CNG are obtained in terms of the measurement of the mass center, and the dynamic model is developed with the software of MATLAB/SIMULINK. Finally, a simulation for the handling stability of the automobile is conducted. It is shown from the results that the banding stability gets worse, the modification for CNG also leads to the oversteering state under certain area which is safe before modification. The conclusions provide methods and theory basis for CNGV modification.

关 键 词：天然气汽车 改装 操纵稳定性 仿真 

分 类 号：U461.6[机械工程—车辆工程]