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Objective Evaluation of FCV Interior Sound Quality During Acceleration

[+] Author Affiliations
Hai Liu, Yong Chen, Xiang Ji, Changyin Wei

Hebei University of Technology, Tianjin, China

Yanyi Zhang, Dong Hao

China Automotive Technology & Research Center, Tianjin, China

Paper No. IMECE2018-87011, pp. V011T01A010; 6 pages
doi:10.1115/IMECE2018-87011
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 11: Acoustics, Vibration, and Phononics
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5216-3
  • Copyright © 2018 by ASME

abstract

While driving a FCV during acceleration, many sorts of sounds could be heard, which influence the interior sound quality. A typical FCV is taken as a sample, four interior noises generated under the acceleration operation are collected in the whole vehicle semi-anechoic chamber, and the noise sample database of diesel engine radiation noise is established after preprocessing. Based on sound quality theory (physical and psychoacoustic features), the Kernel Principal Component Analysis (KPCA) is used to extract the key objective features mainly influencing the sound quality, which realize the dimension reduction target; the variations of objective features are analyzed to qualitatively analyze the law of the sound quality varying during acceleration. According to the objective evaluation of FCV interior sound quality, combining with FCV operating parameters, the influencing law of the FCV sound quality could be obtained.

Copyright © 2018 by ASME
Topics: Sound quality

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