欢迎访问机床与液压官方网站!

咨询热线:020-32385312 32385313 RSS EMAIL-ALERT
两种轮毂电机悬架系统构型比较研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金(51765021);江西省科技厅重点研发项目(20181BBE50012)


Comparative Study on the Configuration of Two Wheel Motor Suspension Systems
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    针对轮毂电机驱动的电动汽车非簧载质量增加,汽车垂向振动现象加剧的问题,设计多级隔振型和动力吸振型两种含电机悬架装置的悬架系统构型,并建立相应的车辆垂向振动数学模型。以电机悬架刚度与阻尼为优化变量,确定其位移约束与边界约束条件,建立多目标优化函数。利用MATLAB软件建立仿真模型,在分析电机悬架刚度与阻尼对悬架系统性能影响的基础上,以车身加速度、车身悬架动挠度、电机悬架动挠度以及轮胎动载荷均方根值为评价指标,比较多级隔振型和动力吸振型两种轮毂电机悬架系统构型的汽车行驶平顺性。结果表明:多级隔振型和动力吸振型的电机悬架刚度与阻尼优化结果分别为119 880 N/m、200 N〖KG-*2〗·〖KG-*4〗s/m和9 995 N/m、1 296 N〖KG-*2〗·〖KG-*4〗s/m;动力吸振型相比多级隔振型轮毂电机悬架系统能够更好地改善汽车垂向振动负效应问题,提升汽车乘坐舒适性。

    Abstract:

    Aiming at the problem that the increase of unsprung mass of electric vehicle driven by wheel motor results in the intensification of vertical vibration of vehicle, two suspension system including motor suspension devices, multi-stage vibration isolation(MVI) type and dynamic vibration absorption(DVA) type were designed, and the corresponding mathematical models of vehicle vertical vibration were established. The hub motor suspension stiffness and damping were regarded as optimization variables, the displacement and boundary constraints were determined and a multi-objective optimization function was established. MATLAB software was used to establish the simulation model, based on the analysis of the motor suspension stiffness and damping of suspension system, body acceleration, dynamic deflection of body suspension, dynamic deflection of motor suspension and root mean square value of tire dynamic load were used as evaluation indexes to compare vehicle ride comfort of multi-stage vibration isolation type and dynamic vibration absorption type hub motor suspension system configuration. The results show that the stiffness and damping optimization results of multi-stage vibration isolation type and dynamic vibration absorption type are 119 880 N/m and 200 N〖KG-*2〗·〖KG-*4〗s/m, 9 995 N/m and 1 296 N〖KG-*2〗·〖KG-*4〗s/m, respectively; compared with the multi-level vibration isolation hub motor suspension system, the dynamic vibration absorption type can better improve the negative effect of vertical vibration of vehicles and improve the comfort of vehicles.

    参考文献
    相似文献
    引证文献
引用本文

张定军,曹青松,许力.两种轮毂电机悬架系统构型比较研究[J].机床与液压,2022,50(4):29-35.
ZHANG Dingjun, CAO Qingsong, XU Li. Comparative Study on the Configuration of Two Wheel Motor Suspension Systems[J]. Machine Tool & Hydraulics,2022,50(4):29-35

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2022-05-13
  • 出版日期: