摘要
基于经典操纵稳定性二自由度线性数学模型研究方法,通过力学分析建立了包含悬架K&C特性参数的汽车操纵稳定性线性数学模型,并建立其MATLAB模型。将经典操纵稳定性二自由度数学模型和引入悬架K&C特性参数的操纵稳定性数学模型对整车不足转向度及横摆角速度的影响进行对比分析,研究悬架K&C特性参数与操纵稳定性的关系。依据三种小型SUV的悬架K&C数据及整车阶跃试验数据,对两种操纵稳定性数学模型进行计算,并与试验结果进行了对比,验证了引入悬架K&C特性参数的操纵稳定性数学模型的准确性。
Based on classic two-degrees of freedom linear mathematical model about handling stability, a linear mathematical model and MATLAB model which included suspension K＆C characteristics parameters were established by the mechanics analysis method. Then the relationship between suspension K＆C characteristics and handling stability was researched by comparing the understeer and yaw rate of classic two-degrees of freedom linear mathematical model with the linear mathematical model which included suspension K＆C characteristics parameters. The accuracy of mathematical model which included suspension K＆C characteristics parameters was validated by contrasting the results from mathematical model simulations and two mathematical model data which came from suspension K＆C of three small sport-utility vehicle（SUV） and vehicle step test.
作者
李广
刘芳
檀润华
李雪鹏
王天禹
LI Guang;LIU Fang;TAN Runhua;LI Xuepeng;WANG Tianyu(School of Mechanical Engineering, Hebei University of Technology, Tianjin, 300130;The Research Center of National Technology Innovation Method and Implementation Tool Engineering Technology, Tianjin, 300130;China Automotive Technology ＆ Research Center, Tianjin, 300300)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2018年第11期1316-1323,共8页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51605134)
关键词
悬架K&C特性
操纵稳定性
二自由度线性模型
不足转向
suspension K＆C characteristics
handling stability
two-degrees of freedom linear model
understeer
