SS-ISO-11451-4 › Road vehicles Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy Part 4: Harness excitation methods (ISO 11451-4:2022, IDT)
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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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43.040.10 (Electrical and electronic equipment)
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Designation Name
SS-ISO 11451-4:2022
Revision Level
2022 EDITION
Status
Current
Publication Date
June 10, 2022
Language(s)
English
Page Count
32
International Equivalent
ISO 11451-4:2022(IDT)