加速道路车辆发出噪声的测量

[中文适用范围]： 本SAE标准等同于ISO 362-1:2015，规定了一种工程方法，用于测量在典型城市交通条件下M类和N类道路车辆发出的噪声。该标准不适用于L1、L2、L3、L4和L5类车辆。该标准的规范旨在重现城市交通中正常行驶时主要噪声源所产生的噪声水平。该方法的设计旨在满足在车辆运行条件下结果可重复性的前提下，尽可能实现操作简便。该测试方法需要在广阔的开阔空间中才能获得所需的声学环境。通常在以下情况下提供此类条件：用于法规认证和/或型式批准的车辆测量；制造阶段的测量；官方测试站的测量。附录A提供了与本标准使用意图一致的背景信息。 [外文原描述]： This SAE Standard is equivalent to ISO 362-1:2015 and specifies an engineering method for measuring the noise emitted by road vehicles of categories M and N under typical urban traffic conditions. It excludes vehicles of category L1, L2, L3, L4, and L5. The specifications are intended to reproduce the level of noise generated by the principal noise sources during normal driving in urban traffic. 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 obtained only in an extensive open space. Such conditions are usually provided for during: Measurements of vehicles for regulatory certification and/or type approval Measurements at the manufacturing stage Measurements at official testing stations Annex A provides background information on the use of this standard consistent with the intent.