ISO 11451-4:2022 道路车辆 窄带辐射电磁能产生的电气干扰的车辆试验方法 第4部分：线束激励方法

标准编号：ISO 11451-4:2022

中文名称：道路车辆 窄带辐射电磁能产生的电气干扰的车辆试验方法 第4部分：线束激励方法

英文名称：Road vehicles — Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 4: Harness excitation methods

发布日期：2022-05

标准范围

本文件规定了用于测试乘用车和商用车电子部件电磁抗扰度的线束激励方法，无论推进系统如何（例如火花点火发动机、柴油发动机、电动机）。大电流注入（BCI）测试方法基于使用电流探针作为变压器将电流注入到线束中，其中线束形成二次绕组。管状波耦合器（TWC）测试方法基于使用定向耦合器原理将波耦合到线束中。TWC测试方法是针对GHz范围内（GSM频段、UMTS、ISM 2,4？GHz）的辐射干扰对汽车部件进行抗扰度测试而开发的。它最适合于小型（相对于波长）和受测屏蔽设备（DUT），因为在这些情况下，主要的耦合机制是通过线束。本文中考虑的电磁干扰仅限于连续窄带电磁场。ISO11451-1给出了试验方法的定义、实际使用和基本原则。

This document specifies harness excitation methods for testing the electromagnetic immunity of electronic components for passenger cars and commercial vehicles regardless of the propulsion system (e.g. spark-ignition engine, diesel engine, electric motor).The bulk current injection (BCI) test method is based on current injection into the wiring harness using a current probe as a transformer where the harness forms the secondary winding. The tubular wave coupler (TWC) test method is based on a wave coupling into the wiring harness using the directional coupler principle.The TWC test method was developed for immunity testing of automotive components with respect to radiated disturbances in the GHz ranges (GSM bands, UMTS, ISM 2,4 GHz). It is best suited to small (with respect to wavelength) and shielded device under test (DUT), since in these cases the dominating coupling mechanism is via the harness.The electromagnetic disturbance considered in this document is limited to continuous narrowband electromagnetic fields.ISO 11451-1 gives definitions, practical use and basic principles of the test methods.

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