汽车技术
汽車技術
기차기술
AUTOMABILE TECHNOLOGY
2014年
3期
45-48
,共4页
电动汽车%车身平顺性%车轮接地性%优化
電動汽車%車身平順性%車輪接地性%優化
전동기차%차신평순성%차륜접지성%우화
Electric Vehicle%Ride comfort%Ground adhesion%Optimization
以某分布式四轮驱动电动汽车为研究对象，在Adams/car中建立了整车模型，通过对前、后悬架参数进行灵敏度分析，探讨其对车身平顺性与车轮接地性的影响。基于α法建立评价车身平顺性与车轮接地性指标的多目标函数，对灵敏度较高的悬架参数进行优化设计。结果表明，优化后前、后悬架的刚度减小，前悬架的阻尼增大。与优化前相比，车身垂向加速度均方根值减小16%，左、右前轮动载荷的均方根值均减小11%。
以某分佈式四輪驅動電動汽車為研究對象，在Adams/car中建立瞭整車模型，通過對前、後懸架參數進行靈敏度分析，探討其對車身平順性與車輪接地性的影響。基于α法建立評價車身平順性與車輪接地性指標的多目標函數，對靈敏度較高的懸架參數進行優化設計。結果錶明，優化後前、後懸架的剛度減小，前懸架的阻尼增大。與優化前相比，車身垂嚮加速度均方根值減小16%，左、右前輪動載荷的均方根值均減小11%。
이모분포식사륜구동전동기차위연구대상，재Adams/car중건립료정차모형，통과대전、후현가삼수진행령민도분석，탐토기대차신평순성여차륜접지성적영향。기우α법건립평개차신평순성여차륜접지성지표적다목표함수，대령민도교고적현가삼수진행우화설계。결과표명，우화후전、후현가적강도감소，전현가적조니증대。여우화전상비，차신수향가속도균방근치감소16%，좌、우전륜동재하적균방근치균감소11%。
With a distributed 4WD electric vehicle as research object, a vehicle model is constructed in Adams/car environment. Sensitivity analysis is made to the front and rear suspension parameters, its effect on ride comfort and wheel ground adhesion is investigated. Multi-objective function to evaluate body ride comfort and wheel ground adhesion is established based on α method and suspension parameters with high sensitivity are optimized. The results indicate that stiffness of the optimized front and rear suspension descends, whereas damping of the front suspension ascends. Compared with the suspension before optimization, the root-mean-square value of body vertical acceleration is reduced by 16%, and that of the front wheels on both sides is reduced by 11%.
