车辆横摆角速度影响因素研究  

Research on Factors Affecting Vehicle Yaw Rate

作　　者：吴利广 李雪鹏 景立新 王晗 李广 Wu Liguang;Li Xuepeng;Jing Lixin;Wang Han;Li Guang(China CATARC(Tianjin)Automotive Engineering Research Institute Co.,Ltd,Tianjin,P.R.China,Tianjin 300300)

机构地区：[1]中汽研(天津)汽车工程研究院有限公司

出　　处：《汽车实用技术》2019年第19期60-63,共4页Automobile Applied Technology

摘　　要：横摆角速度是描述车辆瞬态响应的重要指标。通过对角脉冲工况下横摆角速度影响因素进行理论分析,选取减振器阻尼系数、前束角变化率、悬架侧倾角刚度、轮胎侧偏刚度及松弛长度等参数,通过Carsim软件进行建模仿真分析。仿真结果表明:轮胎侧偏刚度对于车辆瞬态响应最为明显,前束角变化率及悬架侧倾角刚度对横摆角速度也具有一定的影响。为车辆底盘开发设计中提升车辆的瞬态响应提供参考。The yaw rate is an important indicator to describe the vehicle's transient response.Through theoretical analysis of the factors affecting the yaw rate of the vehicle under diagonal pulse conditions,five parameters of damping coefficient,tire cornering stiffness,toe angle slope,suspension roll angle stiffness and relaxation length are selected.Then modeling and simulation analysis through Carsim software.Simulation results show that tire cornering stiffness is most pronounced for vehicle transient response,and toe angle slope,suspension roll angle stiffness also have a certain influence on the yaw rate.The above provides a reference for improving the transient response of the vehicle in the design of the vehicle chassis.

关 键 词：横摆角速度 轮胎侧偏刚度 前束角变化率 悬架侧倾角刚度 

分 类 号：U462[机械工程—车辆工程]