ISO 11452-4:2020 PDF

Scope: This document specifies harness excitation test methods and procedures for determining the immunity of electronic components of 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 disturbances considered in this document are limited to continuous narrowband electromagnetic fields.

ISO 11452-4:2020 Referenced Document

ISO 11452-1:2015 Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 1: General principles and terminology

2020 ISO 11452-4:2020 Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 4: Bulk current injection (BCI)
2011 ISO 11452-4:2011 Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Harness excitation methods
2009 ISO 11452-4:2005/Cor 1:2009 Road vehicles. Component test methods for electrical interference from narrowband radiated electromagnetic energy. Part 4: Current injection (BCI). Technical Corrigendum 1
2005 ISO 11452-4:2005 Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI)
2001 ISO 11452-4:2001 Road vehicles - Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI)
1995 ISO 11452-4:1995 Road vehicles - Electrical disturbances by narrowband radiated electromagnetic energy - Component test methods - Part 4: Bulk current injection (BCI)