Analysis and Research on NVH Problem of Double Clutch Transmission

Zhou Xinjian; Mao Le; Bao Guangzhen

doi:10.16578/j.issn.1004.2539.2018.02.026

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Analysis and Research on NVH Problem of Double Clutch Transmission

更新时间：2022-10-20

- Analysis and Research on NVH Problem of Double Clutch Transmission
- Vol. 42, Issue 2, Pages: 137-141(2018)
- 作者机构：
  
  1. 华东交通大学机电与车辆工程学院
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2018.02.026
  CLC：
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[1]周新建,毛乐,鲍光珍.双离合变速器NVH问题分析与研究[J].机械传动,2018,42(02):137-141.

Zhou Xinjian, Mao Le, Bao Guangzhen. Analysis and Research on NVH Problem of Double Clutch Transmission. [J]. 42(2):137-141(2018)
[1]周新建,毛乐,鲍光珍.双离合变速器NVH问题分析与研究[J].机械传动,2018,42(02):137-141. DOI： 10.16578/j.issn.1004.2539.2018.02.026.

Zhou Xinjian, Mao Le, Bao Guangzhen. Analysis and Research on NVH Problem of Double Clutch Transmission. [J]. 42(2):137-141(2018) DOI： 10.16578/j.issn.1004.2539.2018.02.026.

摘要

某款DCT250双离合变速器在下线检测过程中,出现异常噪声品质问题。针对此问题,通过ABA试验对故障现象进行数据分析,结果表明,外输入轴上二挡齿轮齿向螺旋角误差与该NVH问题有强相关。通过对齿向交叉原因的加工工艺验证,确认外输入轴小头的中心孔与A基准不同心是该齿向螺旋角误差产生的根本原因。结合测试分析结果,通过控制花键校直时跳动和定期检测全齿齿形齿向,从而解决该噪声品质异常问题。最后的趋势跟踪也证明该分析数据的正确性和优化方案的可行性。此试验分析方法不仅缩短了NVH问题处理时间,而且对解决同类工程问题也有很好的参考价值。

Abstract

The abnormal noise quality problem is measured in off-line detection of a DCT250 dual clutch transmission. The fault phenomena is analyzed by ABA testing. The results show that gear direction helix angle error of second gear on external input shaft is strongly related with the NVH problems. Through the verification of the machining process of tooth to crossover,it is confirmed that the center hole of the input shaft head is not concentric with the A datum,which is the root cause of the gear direction helix angle error. Combined with the results of the test and analysis,the problem of abnormal quality of the noise is solved by controlling the spline alignment and detecting the full tooth profile periodically. Finally,the correctness of the analysis and the feasibility of the optimal scheme are verified by the final trend tracking. The analysis method of test not only shortens the processing time of NVH problem,but also has good reference value for solving similar engineering problem.

关键词

变速器NVH噪声品质同心度

Keywords

TransmissionNVHNoise qualityConcentricity

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