Research on Factors Affecting the Reducer Transmission Efficiency of Electric Vehicles

Feng Chen; Weilin Li; Yinda He; Zhongjie Zhang; Lü Binghai; Qinghua Yang

doi:10.16578/j.issn.1004.2539.2022.09.002

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Research on Factors Affecting the Reducer Transmission Efficiency of Electric Vehicles

Theory·Reserach | 更新时间：2022-09-26

- Research on Factors Affecting the Reducer Transmission Efficiency of Electric Vehicles
- Journal of Mechanical Transmission Vol. 46, Issue 9, Pages: 11-18(2022)
- 作者机构：
  
  1.浙江工业大学机械工程学院，浙江杭州 310023
  2.浙江方圆检测集团股份有限公司浙江省市场监管新能源汽车驱动系统重点实验室，浙江杭州 310018
  3.浙江理工大学机械与自动控制学院，浙江杭州 310018
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.09.002
  CLC：
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陈锋,李威霖,何胤达等.电动汽车用减速器传动效率影响因素研究[J].机械传动,2022,46(09):11-18.

Chen Feng,Li Weilin,He Yinda,et al.Research on Factors Affecting the Reducer Transmission Efficiency of Electric Vehicles[J].Journal of Mechanical Transmission,2022,46(09):11-18.
陈锋,李威霖,何胤达等.电动汽车用减速器传动效率影响因素研究[J].机械传动,2022,46(09):11-18. DOI： 10.16578/j.issn.1004.2539.2022.09.002.

Chen Feng,Li Weilin,He Yinda,et al.Research on Factors Affecting the Reducer Transmission Efficiency of Electric Vehicles[J].Journal of Mechanical Transmission,2022,46(09):11-18. DOI： 10.16578/j.issn.1004.2539.2022.09.002.

摘要

减速器传动效率是影响整个传动系统效率的主要因素，建立减速器传动效率模型，并对其影响因素进行分析，对于提升电动汽车用减速器传动效率意义重大。针对电动汽车用减速器的特点，分析了齿轮啮合损失、轴承损失、搅油风阻损失和油封损失4种因素对传动效率的影响，建立了传动效率计算模型，开展了润滑油、转速及转矩对电动汽车用单挡二级减速器传动效率影响的理论研究；搭建高速三轴综合性能检测台架，开展了模型精度及传动效率影响因素的正交试验研究。结果表明，所建模型的仿真结果最大相对误差为-0.59%，优于ISO/TR 14179—1：2001的-1.75%；随着转速增加，传动效率逐渐降低，对传动效率的影响程度最大；随着转矩增大，传动效率逐渐提升；润滑油温度越低，传动效率越低；润滑油牌号对传动效率影响不明显，润滑油黏度越小，传动效率越高，对传动效率的影响程度最小。

Abstract

The transmission efficiency of the reducer is the main factor affecting the efficiency of the whole transmission system. Establishing the transmission efficiency model and analyzing the influencing factors on transmission efficiency are of great significance to improve the transmission efficiency of electric vehicles. According to the characteristics of electric vehicle reducer， four transmission efficiency loss factors including gear meshing loss， bearing loss， oil stirring wind resistance loss and oil seal loss are analyzed and the transmission efficiency calculation model is established. The lubricant， speed and torque are developed. The effects of oil， speed and torque on the transmission efficiency of single gear two-stage reducer for electric vehicles are studied theoretically. A high-speed three-axis comprehensive performance test bench is built and the orthogonal experimental research on the precision of an established model and the influencing factors of transmission efficiency are performed. The theoretical and experimental research results show that： the maximum relative error of the established model is -0.59%， which is less than that of ISO/TR 14179—1：2001 （-1.75%）； as the speed increases， the transmission efficiency gradually decreases； the speed has the greatest influence on transmission efficiency； as the torque increases， the transmission efficiency gradually increases； the lower the lubricating oil temperature is， the lower the transmission efficiency becomes； the influence of the lubricating oil grade on the transmission efficiency is not obvious； the lower the lubricating oil viscosity is， the higher the transmission efficiency becomes and the oil has the least influence on transmission efficiency.

关键词

电动汽车减速器传动效率正交试验

Keywords

Electric vehicleReducerTransmission efficiencyOrthogonal test

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