纯电动汽车动力总成悬置系统的优化  

Optimization of the Powertrain Mounting System of Electric Vehicle

作　　者：徐中明[1,2] 李晓 刘和平 

机构地区：[1]重庆大学 机械传动国家重点实验室 [2]机械工程学院 [3]输配电装备及系统安全与新技术国家重点实验室,重庆400030

出　　处：《汽车工程》2012年第9期806-810,815,共6页Automotive Engineering

基　　金：高等学校博士学科点专项科研基金(20100191110004)资助

摘　　要：利用CATIA和ADAMS软件建立了某小型纯电动汽车动力总成悬置系统的6自由度刚体动力学模型。分析了该动力总成悬置系统的固有特性、耦合特性和电动汽车在起步与制动工况下的瞬态特性。考虑橡胶悬置元件的安装位置和角度,以悬置刚度为设计变量,以能量解耦为优化目标,利用ADAMS/Insight对悬置参数进行了优化,结果表明,优化后能量解耦程度有了明显的提高,悬置系统的隔振性能大大改善。A 6 DOF rigid body dynamics model for the powertrain mounting system of a compact electric ve- hicle is created by using software CATIA and ADAMS. Then the natural characteristic and coupling characteristic of powertrain moutlting system and the transient characteristics of electric vehicle in starting and braking conditions are analyzed. Taking account of the mounting position and angle of rubber mount elements, with the mount stiffness as design variables and the energy decoupling as objective, an optimization on mounts parameters is conducted with ADAMS/Insight. The results show that after optimization the extent of energy decoupling in mounting system is ap- parently enhanced and hence its vibration isolation performance significantly improves.

关 键 词：电动汽车 动力总成 ADAMS 悬置系统 能量解耦 

分 类 号：U463.33[机械工程—车辆工程]