摘要
为解决某车型电动汽车右悬置隔振差,引起车内振动问题,测试实际动力总成转动惯量并对悬置系统进行优化.运用扭矩轴理论对右悬置位置做出改变,根据解耦优化结果对右悬置刚度进行调整,对右悬置衬套结构进行优化以优化电机启动倒转位移量,最后对悬置支架进行模态频率优化消除原有共振频率.对整改后项目样车测试表明,整改后车内振动情况满足优化要求.
The vibration problem associated with electric vehicles（ EV） is caused by the improper design of the vibration isolation module for the right suspension. To address this issue,the real powertrain inertia has been tested and suspension system optimization is done. Firstly,the right suspension position has been changed by Torque Axis theory; secondly,the right suspension stiffness is adjusted by Decoupling Optimization results; thirdly,the right suspension structure is modified for electric motor start or reversal;finally,the suspension bracket is designed to avoid resonant frequency. The test after optimization proves the correctness.
出处
《道路交通与安全》
2015年第1期35-40,共6页
Road Traffic & Safety
关键词
电动汽车
悬置
转动惯量
扭矩轴
解耦
刚度
electric vehicle
suspension system
powertrain inertia
torque axis
decoupling optimization
stiffness
