基于ADAMS的四轮独立驱动电动汽车悬架分析与优化  

Suspension analysis and optimization of the four-wheel independent drive electric vehicle based on ADAMS

作　　者：黄美婷 HUANG Meiting(Automotive College,Fujian Vocational College of Shipping and Transportation,Fuzhou 350002,China)

机构地区：[1]福建船政交通职业学院汽车学院,福建福州350002

出　　处：《河南工程学院学报（自然科学版）》2024年第1期50-54,共5页Journal of Henan University of Engineering：Natural Science Edition

基　　金：福建省教育厅2018年度省级技能大师工作室项目(闽人社文[2018]200号)。

摘　　要：为解决电动汽车套用传统燃油汽车的悬架设计方案时,非簧载质量增加和转向系统等机构的布置发生变化影响车辆垂向性能的问题,以某四轮独立驱动电动汽车的前麦弗逊悬架为例,经过受力分析并基于CATIA软件建立麦弗逊前悬架动力学模型。通过ADAMS仿真,研究了不同坐标值的关键点对电动汽车行驶平顺性和操纵稳定性的影响。利用ADAMS/Postprocessor相关曲线特性,优化了四项定位参数(前轮前束角、车轮外倾角、主销外倾角和主销内倾角),结果表明:前束角最小值变化量为0.34°,增加了41.5%;主销后倾角最大值变化量为1.1°,减少了31.4%。In order to solve the problems of suspension design scheme of traditional fuel vehicle used in electric vehicle,and the problem that the increase of unspring load quality and the change of arrangement of steering system etc.affect the vertical performance of vehicle,taking the front MacPherson suspension of a four-wheel independent drive electric vehicle prototype as an example,the dynamic model of the front MacPherson suspension is established based on the stress analysis and CATIA software.The influence of key points with different coordinate values on ride comfort and handling stability of EV is studied by ADAMS simulation.Four positioning parameters(front wheel toe angle,camber angle,kingpin camber and kingpin inclination angle)are optimized using the characteristics of ADAMS/Postprocessor correlation curves.The results show that after optimization,the minimum change of toe angle is 0.34°,which is increased by 41.5%;the maximum change of kingpin caster angle is 1.1°,which is reduced by 31.4%.

关 键 词：电动汽车 四项定位参数 麦弗逊悬架 ADAMS 

分 类 号：U469.72[机械工程—车辆工程]