弯道和坡道上汽车操纵稳定性建模仿真

考虑弯道和坡道路面道路特征参数对汽车操纵稳定性的影响,建立汽车在弯道和坡道路面上整车操纵稳定性模型。根据仿真结果,分析了弯道和坡道路面道路特征参数对汽车操纵稳定性的影响。提出了汽车设计、道路设计和交通工程设施设计中应采取的措施。并为汽车主动悬架设计提供参考。

Modeling and Simulation of Vehicle Steering Stability on Crooked Road and Slope Road

Vehicle steering stability of two typical conditions was presented. The influence to the vehicle steering stability of the character parameters of crooked road and slope road was considered to establish the whole vehicle steering stability model on the crooked road and the slope road. Based on the simulation results, the influence to the vehicle steering stability of the character parameters of crooked road and slope road was investigated, the followings have been pointed out: vehicle steering stability on the crooked road was affected strongly by the lateral heightening slope, but on the slope road, vehicle steering stability changed little when the longitudinal slope changed. In two typical conditions, speed was an important factor that had great influence to the vehicle steering stability. Therefore, the measures, which should be taken in the vehicle design, road design and traffic engineering establishments design, were provided. The research result can be used as reference for the initiative suspension design.