汽车工程

汽车工程 ›› 2019, Vol. 41 ›› Issue (11): 1335-1340.doi: 10.19562/j.chinasae.qcgc.2019.011.016

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基于轮胎/路面噪声替换的车辆通过噪声室内测量实验研究*

刘策, 陈剑, 张永斌, 李家柱   

  1. 1.合肥工业大学机械工程学院,合肥 230009;
    2.安徽省汽车NVH工程技术研究中心,合肥 230009
  • 收稿日期:2018-08-14 出版日期:2019-11-25 发布日期:2019-11-28
  • 通讯作者: 陈剑,教授,博士,E-mail:hfgd8216@126.com
  • 基金资助:
    安徽省科技重大专项(17030901049)、国家自然科学基金(51675149)、国家自然科学基金青年科学基金(11604070)和江淮汽车有限公司2017年度研发基金资助

An Experimental Research on Indoor Pass-by Noise Measurement of Vehicles Based on the Replacement of Tyre/Road Noise

Liu Ce, Chen Jian, Zhang Yongbin, Li Jiazhu   

  1. 1.School of Mechanical Engineering, Hefei University of Technology, Hefei 230009;
    2.Automotive NVH Engineering and Technology Research Center Anhui Province, Hefei 230009
  • Received:2018-08-14 Online:2019-11-25 Published:2019-11-28

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摘要： 考虑车辆通过噪声室外测量易受环境因素、驾驶技术和测量场地的影响,加之国际标准(ISO 362—1:2007)对车辆通过噪声测量过程提出更严格的要求,致使通过噪声测量成功率显著降低。为建立高效的通过噪声测量平台,车辆通过噪声的室内测量方法成为迫切需求。本文中针对车辆通过噪声室内测量方法研究的关键问题——室内外轮胎/路面噪声存在差异,对某型车开展室内外通过噪声测量实验研究,提出基于室内滑行实验方法获取室内轮胎/路面噪声系数,提取室内轮胎/路面噪声,基于声压能量叠加原理,用室外轮胎/路面噪声替换室内轮胎/路面噪声,实现半消声室内车辆通过噪声测量结果与室外测量结果的误差在±1 dB(A)以内,验证了该方法的有效性。

关键词: 轮胎/路面噪声, 通过噪声, 室内测量, 滑行, 替换

Abstract: The outdoor pass-by noise tests of vehicles are subject to environmental factors, driving skill and test sites, and the international standard ISO 362—1∶2007 has more stringent requirements on outdoor pass-by noise tests, which makes the success rate of pass-by noise test is significantly reduced. In order to establish an efficient platform for pass-by noise tests, the indoor measurement methods for pass-by noise tests have become an urgent need. In view of the key problem of vehicle pass-by noise indoor measurement methods that there are differences between indoor and outdoor tyre/road noise in the pass-by noise tests, the experimental research on indoor and outdoor pass-by noise tests for a certain vehicle is carried out. Based on indoor coast-by method, the indoor tyre/road noise coefficients are obtained and the indoor tyre/road noise is extracted, which is then replaced by outdoor tyre/road noise based on the energy superposition principle of sound pressure. The absolute error between the indoor pass-by noise measurement result and outdoor measurement result is within ±1 dB(A) , which verifies the effectiveness of the method.

Key words: tyre/road noise, pass-by noise, indoor measurement, coast-by, replacement