Fatigue Life Analysis of Reducer Gears for Battery Electric Vehicle Considering Regenerative Braking

杜进辅; 武兴荣

doi:10.13433/j.cnki.1003-8728.20230243

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Fatigue Life Analysis of Reducer Gears for Battery Electric Vehicle Considering Regenerative Braking

更新时间：2026-04-23

- Fatigue Life Analysis of Reducer Gears for Battery Electric Vehicle Considering Regenerative Braking
- Mechanical Science and Technology for Aerospace Engineering Vol. 44, Issue 7, Pages: 1246-1254(2025)
- 作者机构：
  
  西安理工大学机构机械与精密仪器工程学院,西安,710048
- 作者简介：
- 基金信息：
- DOI：10.13433/j.cnki.1003-8728.20230243
  CLC：
- Published：2025
- 稿件说明：
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杜进辅, 武兴荣. Fatigue Life Analysis of Reducer Gears for Battery Electric Vehicle Considering Regenerative Braking[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(7): 1246-1254.
DOI：

杜进辅, 武兴荣. Fatigue Life Analysis of Reducer Gears for Battery Electric Vehicle Considering Regenerative Braking[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(7): 1246-1254. DOI： 10.13433/j.cnki.1003-8728.20230243.

摘要

纯电动汽车制动方式有别于传统摩擦制动，电磁制动在主动轴产生的反向扭矩改变了传动齿轮的工况，从而影响其服役寿命。基于CLTC分析了电动汽车传动齿轮的应力-时间历程，并分别计算了考虑电磁制动影响以及摩擦制动单独作用下齿轮的疲劳寿命。结果表明

电磁制动影响下，主动小轮的接触和弯曲疲劳寿命均有所减少。因此，在纯电动汽车传动齿轮疲劳寿命的高精度计算乃至其剩余寿命的精确预估中，电磁制动介入的影响不可忽视。

Abstract

The braking mode of BEV (Battery electric vehicle) is different from the traditional friction braking. The reverse torque generated by electromagnetic braking on the driving axle changes the working condition of the transmission gears

thus affecting their service life.On CLTC (China light vehicle test cycle)

the stress-time history of the transmission gear of electric vehicle was analyzed

and the fatigue life of the gears considering the influence of the electromagnetic braking and friction braking separately were calculated. The results show that under the influence of the electromagnetic braking

both the contact and bending fatigue life of the pinion are reduced. Therefore

the influence of the electromagnetic braking can′t be ignored in the high-precision calculation of fatigue life of transmission gear of BEV and the accurate prediction of the remaining life.

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