中欧轻型汽车多工况行驶车外噪声测量方法差异分析  

Discrepancy Analysis Between Chinese and European Measurements for Noise Emitted by Light-duty Vehicles in Multiple Driving Mode Conditions

作　　者：谢东明[1,2] 刘昱 彭伟强 曹丽娟 胡熙 XIE Dong-ming;LIU Yu;PENG Wei-qiang;CAO Li-juan;HU Xi(China Automotive Technology and Research Center Co.,Ltd.,Tianjin 300300,China;State key laboratoiy of engines,Tianjin University,Tianjin 300072,China)

机构地区：[1]中国汽车技术研究中心有限公司,天津300300 [2]天津大学内燃机燃烧学国家重点实验室,天津300072

出　　处：《汽车科技》2021年第4期15-22,共8页Auto Sci-Tech

基　　金：国家标准计划《轻型汽车多工况行驶车外噪声测量方法》,项目计划号:20173652-T-339。

摘　　要：概述了推荐性国家标准《轻型汽车多工况行驶车外噪声测量方法》(报批稿)与联合国欧洲经济委员会UN Regulation No.51噪声法规附录7附加噪声排放规定(最新草案)的技术背景,分析了在适用范围、术语定义、测量仪器设施、环境条件、车辆准备、测量边界条件、测量挡位、车辆操作、测量结果处理等方面存在的主要差异及存在这些差异的技术原因。结合轻型汽车车外噪声相关新技术分析了以上标准法规的发展趋势。This paper summarizes the technical background and analyzes the differences including scope,terms and definitions,test equipment and facilities,test conditions,vehicle preparing,control ranges,test gears,vehicle driving and test data processing between GB/T standard<Measurement methods for noise emitted by light-duty vehicles in multiple driving mode conditions>(to be approved)and UN Regulation No.51 Annex 7<Additional Sound Emission Provisions>(latest draft).The technical reasons for such differences are also concluded briefly.Combined with the new technologies on pass-by noise,the developing trend of the up mentioned standard and regulation is also expected.

关 键 词：多工况噪声 测量方法 ECE R51 差异分析 

分 类 号：U467.4[机械工程—车辆工程]