主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2021, Vol. 46 ›› Issue (17): 47-50.DOI: 10.16638/j.cnki.1671-7988.2021.017.013

• 测试试验 • 上一篇    

某乘用车加速异响问题的排查及改进

邢维者，陈寒霜，田子龙，徐仰汇，任 超   

  1. 广州汽车集团股份有限公司汽车工程研究院
  • 出版日期:2021-09-15 发布日期:2021-09-15
  • 通讯作者: 邢维者
  • 作者简介:邢维者，就职于广州汽车集团股份有限公司汽车工程研 究院。

Investigation and Improvement of Abnormal Acceleration Noise of a Passenger Vehicle

XING Weizhe, CHEN Hanshuang, TIAN Zilong, XU Yanghui, REN Chao   

  1. Automotive Engineering Research Institute, Guangzhou Automobile Group
  • Online:2021-09-15 Published:2021-09-15
  • Contact: XING Weizhe

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摘要： Taking the abnormal acceleration noise of a passenger vehicle as an example, the problem is checked and improved by means of test. First of all, the phenomenon of the problem point and the occurrence condition were evaluated subjectively and tested objectively, and 350 Hz～450 Hz was identified as abnormal sound frequency band. Secondly,testing the vibration on the powertrain and dismantling the parts, the correlation between the acceleration abnormal noise and the torsional vibration of the crankshaft is confirmed. Finally, by testing the torsional vibration of the crankshaft on the vehicle and improving the working frequency of the torsional vibration damper, the amplitude of the torsional vibration of the crankshaft is reduced and the abnormal acceleration noise is eliminated.

关键词: Abnormal acceleration noise; Powertrain; Crank shaft torsional vibration; Torsional vibration damper

Abstract: Taking the abnormal acceleration noise of a passenger vehicle as an example, the problem is checked and improved by means of test. First of all, the phenomenon of the problem point and the occurrence condition were evaluated subjectively and tested objectively, and 350 Hz～450 Hz was identified as abnormal sound frequency band. Secondly,testing the vibration on the powertrain and dismantling the parts, the correlation between the acceleration abnormal noise and the torsional vibration of the crankshaft is confirmed. Finally, by testing the torsional vibration of the crankshaft on the vehicle and improving the working frequency of the torsional vibration damper, the amplitude of the torsional vibration of the crankshaft is reduced and the abnormal acceleration noise is eliminated.

Key words: Abnormal acceleration noise; Powertrain; Crank shaft torsional vibration; Torsional vibration damper