标准编号：ISO 362-3:2022
中文名称：声学 加速道路车辆发出的噪声测量 工程方法 第3部分：室内试验M和N类
英文名称：Acoustics — Measurement of noise emitted by accelerating road vehicles — Engineering method — Part 3: Indoor testing M and N categories
发布日期：2022-09
标准范围
This document specifies an engineering method for measuring the noise emitted by road vehicles of categories M and N by using a semi anechoic chamber with a dynamometer installed.
The specifications are intended to achieve an acoustical correlation between testing the exterior noise of road vehicles in a semi anechoic chamber and outdoor testing as described in ISO 362-1.
This document provides all necessary specifications and procedures for indoor testing to obtain results which are comparable to typical run-to-run variations of measurements in today’s type approval tests.
This document provides a method designed to meet the requirements of simplicity as far as they are consistent with the reproducibility of results under the operating conditions of the vehicle.
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