ISO 362-2:2009 道路车辆加速发出噪声的测量 工程方法 第2部分：L类

标准编号：ISO 362-2:2009

中文名称：道路车辆加速发出噪声的测量 工程方法 第2部分：L类

英文名称：Measurement of noise emitted by accelerating road vehicles — Engineering method — Part 2: L category

发布日期：2009-07

标准范围

ISO 362-2:2009规定了测量L3、L4和L5类道路车辆在典型城市交通条件下发出的噪声的工程方法。它不包括ISO 9645所涵盖的L1和L2类车辆、ISO 362-1所涵盖的M和N类车辆以及L6和L7类车辆。本规范旨在重现城市交通正常行驶期间，主要噪声源产生的噪声水平，通常在限速为50 km/h和70 km/h的道路上。该方法旨在满足简单性要求，只要它们与车辆运行条件下结果的再现性一致。该测试方法需要一个只有在广阔的开放空间中才能获得的声学环境。此类条件通常用于车辆的型式认证测量、制造阶段的测量和官方测试站的测量。

ISO 362-2:2009 specifies an engineering method for measuring the noise emitted by road vehicles of categories L3, L4 and L5 under typical urban traffic conditions. It excludes vehicles of category L1 and L2, which are covered by ISO 9645, vehicles of categories M and N covered by ISO 362-1 and vehicles of categories L6 and L7.The specifications are intended to reproduce the level of noise generated by the principal noise sources during normal driving in urban traffic, typically on roads with speed limits of 50 km/h and 70 km/h.The method is designed to meet the requirements of simplicity as far as they are consistent with reproducibility of results under the operating conditions of the vehicle.The test method requires an acoustical environment that is only obtained in an extensive open space. Such conditions are usually provided for type approval measurements of a vehicle, measurements at the manufacturing stage and measurements at official testing stations.

标准预览图