轮毂电机电动汽车轮内悬置系统设计与优化  

Design and Optimization of Hub Motor Drive Electric Vehicle Wheel Suspension System

作　　者：任洪卓 陈双[1] 张宇涵 REN Hong-zhuo;CHEN Shuang;ZHANG Yu-han(Automotive and Transportation Engineering College, Liaoning University of Technology, Jinzhou 121000, China)

机构地区：[1]辽宁工业大学汽车与交通工程学院,锦州121000

出　　处：《科学技术与工程》2022年第10期4170-4179,共10页Science Technology and Engineering

基　　金：辽宁省教育厅项目(JJL202015402);国家自然科学基金青年科学基金(51605213)。

摘　　要：为了改善轮毂电机驱动电动汽车簧下质量变大导致的垂向振动负效应问题,优化汽车的平顺性,以自主研发的可实现四轮独立驱动的轮毂电机电动汽车为实验对象,设计了一种可安装于电动轮内的轮毂电机悬置系统。提出在电动轮内的特定位置加装橡胶衬套的悬置系统方案,使轮毂电机的定子和转子与簧下质量实现弹性隔离。建立具备电动轮内悬置系统的整车动力学模型,利用遗传算法对橡胶衬套的刚度和阻尼值进行优化,并通过与无轮内悬置系统的传统轮毂电机驱动汽车垂向振动特性对比分析,对此套悬置系统的应用性及有效性进行验证。最后进行了有无悬置系统的实车平顺性实验,进一步证明悬置系统的可靠性。研究结果表明:轮毂电机电动汽车电动轮内安装悬置系统对车辆的平顺性有一定程度上的改善,尤其是对车身加速度的改善比较明显。In order to improve the negative effects of vertical vibration caused by the increscent unsprung mass of hub motor drive electric vehicle,and to optimize the vehicle ride comfort,the in-wheel motor suspension system was designed based on the self-developed hub motor drive electric vehicle that could realize four-wheel independent driving.A set of rubber bushing were selected as in-wheel motor suspension system component.They were installed at specific positions so that the motor stator and rotor could be elastically isolated from the unsprung mass.Then the vehicle dynamic model including the rubber bushing of in-wheel motor suspension system was established,and the stiffness and damping value were optimized based on the genetic algorithm.Through compare the vertical vibration characteristics between traditional hub motor drive electric vehicle with proposed hub motor drive electric vehicle including in-wheel suspension system,its effectiveness was analyzed and verified.Finally,a real car ride comfort experiment with or without a suspension system was carried out to further prove the reliability of the suspension system.The research results show that the in-wheel suspension system of hub motor drive electric vehicle can improve the vehicle ride comfort,especially the body acceleration.

关 键 词：轮毂电机驱动 橡胶衬套 振动负效应 平顺性 

分 类 号：U461.4[机械工程—车辆工程]