中国特有轻型车辆面临的国际噪声限值挑战

International Challenge of Noise Limit Values to Chinese Typical Light-duty Vehicles

2013年联合国欧洲经济委员会将确定加速行驶车外噪声法规ECE R51/03系列的限值,中国特有的轻型车辆即将面临较为严峻的挑战。主要原因是中国与欧洲轻型车辆存在典型差异,而欧洲在数据收集过程并未充分考虑中国特有的轻型车辆。对国内车辆大量的验证试验表明了中国典型轻型车辆噪声水平与轿车存在的差异,提出了适合中国国情的限值划分方案,并指出国内企业应借鉴日本经验,尽快介入欧盟法规制订过程,消除技术壁垒。

United Nations European Committee of Economy （UN ECE） will make a decision for the limit values ofnoise emitted by accelerating motor vehicles in the regulation ECE R51/03 series in 2013. Thus, Chinese typical light-dutyvehicles are facing a serious challenge. The main reason is that there are obvious differences of the light- duty vehiclesbetween China and Europe, and the Europe Union has not fully considered the Chinese typical light- duty vehicles whencollecting the data for the noise limit values. This paper points out the discrepancy of the noise emission level between Chinese typical light-duty vehicles and passenger cars according to large amount of results of verification tests, puts forwarda classification method of the noise limit values suitable to the domestic situation, and suggests that the domesticmanufacturers should take part in the amending of ECE regulations as the Japanese companies did and eliminate thetechnical barriers.