ISO 362-1:2022 测量加速道路车辆发出的噪声 工程方法 第1部分：M和N类

标准编号：ISO 362-1:2022

中文名称：测量加速道路车辆发出的噪声 工程方法 第1部分：M和N类

英文名称：Acoustics — Engineering method for measurement of noise emitted by accelerating road vehicles — Part 1: M and N categories

发布日期：2022-11

标准范围

本文件规定了一种测量M类和N类道路车辆在典型城市交通条件下所发出噪声的工程方法。它不包括ISO涵盖的L1和L2类车辆？9645，以及ISO涵盖的L3、L4和L5类车辆？362？2.本规范旨在再现城市交通中正常行驶时主要噪声源产生的噪声水平（见附件？A）。该方法旨在满足简单性的要求，只要它们与车辆操作条件下结果的再现性一致。该测试方法需要仅在广阔的开放空间中获得的声学环境。这种条件通常是为—？车辆的型式认证测量，—？制造阶段的测量，以及—？在官方测试站进行测量。笔记？1？通过该方法获得的结果给出了在规定的测试条件下发出的噪声的客观测量。有必要考虑这样一个事实，即对不同类别机动车辆的噪音滋扰的主观评估并不简单地与声音测量系统的指示有关。由于烦恼与个人人类感知、人类生理状况、文化和环境状况密切相关，因此存在很大的变化，因此作为描述特定车辆状况的参数是无用的。笔记？2？随机选择的车辆很少在理想的声学环境中进行抽查。如果在不满足本文件规定要求的声学环境中在道路上进行测量，所获得的结果可能与使用规定获得的结果有明显偏差d条件。

This document 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 and L2, which are covered by ISO 9645, and vehicles of category L3, L4, and L5, which are covered by ISO 362？2.

The specifications are intended to reproduce the level of noise generated by the principal noise sources during normal driving in urban traffic (see Annex A).

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

—    type approval measurements of a vehicle,

—    measurements at the manufacturing stage, and

—    measurements at official testing stations.

NOTE 1   The results obtained by this method give an objective measure of the noise emitted under the specified conditions of test. It is necessary to consider the fact that the subjective appraisal of the noise annoyance of different classes of motor vehicles is not simply related to the indications of a sound measurement system. As annoyance is strongly related to personal human perception, physiological human conditions, culture, and environmental conditions, there is a large variation and it is, therefore, not useful as a parameter to describe a specific vehicle condition.

NOTE 2   Spot checks of vehicles chosen at random are rarely made in an ideal acoustical environment. If measurements are carried out on the road in an acoustical environment that does not fulfil the requirements stated in this document, the results obtained can deviate appreciably from the results obtained using the specified conditions.

标准预览图