首页 | 本学科首页   官方微博 | 高级检索  
     检索      

随机路面下轮毂电机偏心对电动汽车平顺性影响
引用本文:李杰,贾长旺,成林海,赵旗.随机路面下轮毂电机偏心对电动汽车平顺性影响[J].东北大学学报(自然科学版),2022,43(8):1113-1119.
作者姓名:李杰  贾长旺  成林海  赵旗
作者单位:(吉林大学 汽车仿真与控制国家重点实验室, 吉林 长春130025)
基金项目:汽车仿真与控制国家重点实验室自由探索项目(ASCL-Zytsxm-202001); 吉林省省校共建项目(SXGJSF2017-2-1-1); 国家自然科学基金国际(地区)合作与交流重点项目(61520106008).
摘    要:为了分析轮毂电机偏心对电动汽车平顺性的影响,建立了考虑轮毂电机质量和轮毂电机激励的电动汽车平面4自由度振动模型,推导出相应的状态方程和输出向量表示,确定了平顺性评价指标.采用滤波白噪声方法建立了随机路面前轮激励,将Laplace变换和4阶对称Pade逼近相结合获得了随机路面后轮激励与随机路面前轮激励的关系,给出了典型的四相8/6极开关磁阻电机整体垂向激励的表示.实现了随机路面激励和轮毂电机激励的仿真,在B级路面上进行了4种工况的随机路面平顺性仿真和比较.结果表明,轮毂电机偏心对随机路面下电动汽车平顺性有着不可忽视的影响,设计电动汽车时需要考虑轮毂电机偏心引入的负效应.

关 键 词:纯电动汽车  平顺性  随机路面  轮毂电机  电机偏心  
修稿时间:2021-07-09

Influence of In-Wheel Motors Eccentricity on Ride Comfort of Electric Vehicles on Random Roads
LI Jie,JIA Chang-wang,CHENG Lin-hai,ZHAO Qi.Influence of In-Wheel Motors Eccentricity on Ride Comfort of Electric Vehicles on Random Roads[J].Journal of Northeastern University(Natural Science),2022,43(8):1113-1119.
Authors:LI Jie  JIA Chang-wang  CHENG Lin-hai  ZHAO Qi
Institution:State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China.
Abstract:To analyze the influence of in-wheel motors eccentricity on the ride comfort of electric vehicles, a four degree-of-freedom vibration model of electric vehicles was established to consider the mass and excitation of in-wheel motors. The corresponding state equation and output vector expression were derived, and the ride comfort evaluation index was determined. The random road excitation of the front wheel was established by using the filtered white noise method. The random road excitation relationship between the rear wheel and the front wheel was obtained by combining the Laplace transformation and the fourth-order symmetric Pade approximation. The whole vertical excitation of a typical four-phase 8/6-pole switched reluctance motor was presented. The simulation of random road excitation and in-wheel motor excitation was realized, and the ride comfort simulation and comparison of four working conditions were carried out on a B-grade road. The results showed that in-wheel motors eccentricity has an important influence on the ride comfort of electric vehicles on random roads, and the negative effect of in-wheel motors eccentricity should be considered in the design of electric vehicles.
Keywords:battery electric vehicle  ride comfort  random road  in-wheel motor  motors eccentricity  
点击此处可从《东北大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《东北大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号