Analysis and optimization of the gear rattle in the parallel mode for hybrid electric vehicles

GUO Lin; LIU Xuewen; LIU Xinhao; LIN Weixiong; ZHENG Wenzhao

doi:10.16578/j.issn.1004.2539.2025.03.015

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Analysis and optimization of the gear rattle in the parallel mode for hybrid electric vehicles

Test·Analysis | 更新时间：2025-03-20

- Analysis and optimization of the gear rattle in the parallel mode for hybrid electric vehicles
- Journal of Mechanical Transmission Vol. 49, Issue 3, Pages: 112-116(2025)
- 作者机构：
  
  东风柳州汽车有限公司，柳州 545005
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2025.03.015
  CLC： O422.6
- Received：08 December 2023，
  
  Revised：12 January 2024，
  
  Published：15 March 2025
- 稿件说明：
移动端阅览
郭林，刘学文，刘欣豪，等. 混动汽车并联模式敲击异响分析及优化［J］. 机械传动，2025，49（3）：112-116.

GUO Lin，LIU Xuewen，LIU Xinhao，et al. Analysis and optimization of the gear rattle in the parallel mode for hybrid electric vehicles［J］. Journal of Mechanical Transmission，2025，49（3）：112-116.
郭林，刘学文，刘欣豪，等. 混动汽车并联模式敲击异响分析及优化［J］. 机械传动，2025，49（3）：112-116. DOI： 10.16578/j.issn.1004.2539.2025.03.015.

GUO Lin，LIU Xuewen，LIU Xinhao，et al. Analysis and optimization of the gear rattle in the parallel mode for hybrid electric vehicles［J］. Journal of Mechanical Transmission，2025，49（3）：112-116. DOI： 10.16578/j.issn.1004.2539.2025.03.015.

摘要

目的

针对某款混动车型并联工况异响问题，研究其产生机制并提出优化方案。

方法

首先，对样车进行振动和噪声测试，明确异响类型；其次，建立仿真分析模型，模拟车辆并联工况，通过与测试数据对比，校核模型精度；最后，进行参数影响规律分析，找出对异响影响较大的参数。

结果

综合测试和仿真分析可知，该异响为变速箱齿轮敲击噪声，主要发生在驱动电动机一侧；并联车速、驱动电动机转矩和次级飞轮转动惯量对该异响影响较大。验证结果表明，提高驱动电动机转矩，振动降幅为66.7%；提高并联车速，振动降幅为60%；提高次级飞轮转动惯量，振动降幅为46.7%。所提方案对抑制齿轮敲击的效果明显。

Abstract

Objective

Aiming at the abnormal noise issue in the parallel mode of a hybrid electric vehicle

its generation mechanism was investigated and optimization solutions were proposed.

Methods

Firstly

vibration and noise tests were carried out on the prototype vehicle to identify the type of abnormal noise. Then

a simulation model was established to replicate parallel operating conditions

and its accuracy was verified by comparing simulation results with test data. Finally

a parameter sensitivity analysis was performed to identify the key factors influencing the noise.

Results

The test and simulation results reveal that the abnormal noise is the gear rattle in the transmission

primarily occurring on the drive motor side. Parameters such as parallel vehicle speed

drive motor torque

and secondary flywheel inertia are found to significantly affect the issue. Validation results demonstrate that increasing the drive motor torque leads to a 66.7% reduction in vibration; elevating the parallel vehicle speed results in a 60% decrease in vibration; and augmenting the rotational inertia of the secondary flywheel yields a 46.7% reduction in vibration. The proposed solutions effectively reduce the gear rattle.

关键词

Keywords

references

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