1、BSI Standards PublicationBS ISO 11452-1:2015Road vehicles Componenttest methods for electricaldisturbances from narrowbandradiated electromagneticenergyPart 1: General principles and terminologyBS ISO 11452-1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO
2、 11452-1:2015.The UK participation in its preparation was entrusted to TechnicalCommittee AUE/16, Data Communication (Road Vehicles).A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisio
3、ns of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 78594 8ICS 33.100.20; 43.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pu
4、blished under the authority of theStandards Policy and Strategy Committee on 30 June 2015.Amendments issued since publicationDate Text affectedBS ISO 11452-1:2015 ISO 2015Road vehicles Component test methods for electrical disturbances from narrowband radiated electromagnetic energy Part 1: General
5、principles and terminologyVhicules routiers Mthodes dessai dun quipement soumis des perturbations lectriques par rayonnement dnergie lectromagntique en bande troite Partie 1: Principes gnraux et terminologieINTERNATIONAL STANDARDISO11452-1Fourth edition2015-06-01Reference numberISO 11452-1:2015(E)BS
6、 ISO 11452-1:2015ISO 11452-1:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical
7、, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, Switzerla
8、ndTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 11452-1:2015ISO 11452-1:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 General aim and practical use 65 General test conditions 75.1 General . 75.2 Test temperature . 85.3 Su
9、pply voltage 85.3.1 Low Voltage (LV) power supply 85.3.2 HV d.c. power supply (excluding charger) . 85.3.3 Charger power supply (a.c. or d.c.) for HV battery . 85.4 Modulation . 85.5 Dwell time . 95.6 Frequency step sizes 95.7 Definition of test severity levels 105.8 Disturbance application . 106 In
10、strumentation .106.1 Grounding and shielding . 106.2 AN, AMN, and AAN 116.3 Power supply . 116.3.1 LV power supply 116.3.2 HV d.c. power supply (excluding charger) 116.3.3 Charger power supply (a.c. or d.c.) .116.4 Load simulator . 116.5 Test signal quality 117 Test procedure .127.1 Test plan . 127.
11、2 Test methods 127.2.1 General. 127.2.2 Substitution method 127.2.3 Closed loop levelling 137.2.4 DUT immunity measurement 137.3 Test report 14Annex A (normative) Function Performance Status Classification (FPSC) 15Annex B (normative) Artificial networks (AN), artificial mains networks (AMN), and as
12、ymmetric artificial networks (AAN) 18Annex C (informative) Constant peak test level .27Annex D (informative) Example of load simulator design 30Bibliography .33 ISO 2015 All rights reserved iiiContents PageBS ISO 11452-1:2015ISO 11452-1:2015(E)ForewordISO (the International Organization for Standard
13、ization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to
14、be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used
15、to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of
16、the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified d
17、uring the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the m
18、eaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.The committee responsible for this document is ISO/TC
19、22, Road vehicles, Subcommittee SC 32, Electrical and electronic components and general system aspects.This fourth edition cancels and replaces the third edition (ISO 11452-1:2005) which has been technically revised. It also incorporates the Amendment ISO 11452-1:2005/Amd 1:2008.ISO 11452 consists o
20、f the following parts, under the general title Road vehicles Component test methods for electrical disturbances from narrowband radiated electromagnetic energy: Part 1: General principles and terminology Part 2: Absorber-lined shielded enclosure Part 3: Transverse electromagnetic mode (TEM) cell Par
21、t 4: Harness excitation methods Part 5: Stripline Part 7: Direct radio frequency (RF) power injection Part 8: Immunity to magnetic fields Part 9: Portable transmitters Part 10: Immunity to conducted disturbances in the extended audio frequency range Part 11: Reverberation chamberiv ISO 2015 All righ
22、ts reservedBS ISO 11452-1:2015ISO 11452-1:2015(E)IntroductionIn recent years, an increasing number of electronic devices for controlling, monitoring, and displaying a variety of functions have been introduced into vehicle designs. It is necessary to consider the electrical and electromagnetic enviro
23、nment in which these devices operate.Electrical and radio-frequency disturbances occur during normal operation of many items of motor vehicle equipment. They are generated over a wide frequency range with various electrical characteristics and can be distributed to on-board electronic devices and sy
24、stems by conduction, radiation, or both. Narrowband signals generated from sources on or off the vehicle can also be coupled into the electrical or electronic system, affecting the normal performance of electronic devices. Such sources of narrowband electromagnetic disturbances include mobile radios
25、 and broadcast transmitters.The characteristics of the immunity of components to radiated disturbances have to be established. The ISO 11452 series provides various test methods for the evaluation of component immunity characteristics. Not all test methods need be used for a given device under test
26、(DUT). For example, stripline and transverse electromagnetic (TEM) cell test methods provide very similar exposure to the DUT. Only those tests necessary for replicating the use and mounting location of the DUT need to be included in the test plan. This will help to ensure a technically and economic
27、ally optimized design for potentially susceptible components and systems.The ISO 11452 series is not intended as a product specification and cannot function as one (see A.1). Therefore, no specific values for the test severity level are given.Annex A of this part of ISO 11452 specifies a general met
28、hod for functional performance status classification (FPSC), Annex B specifies Artificial Networks (AN), Artificial Mains Networks (AMN), and Asymmetric Artificial Networks (AAN), Annex C explains the principle of constant peak test level while Annex D describes an example for the design of a load s
29、imulator. Typical severity levels are included in an annex of each of the other parts of ISO 11452.Protection from potential disturbances has to be considered as a part of total vehicle validation as described in ISO 11451, which covers vehicle test methods. Component test method described in the IS
30、O 11452 series is to be performed prior to vehicle test. Due to the vehicles shape, harness, and component location diversities, conformity to parts of ISO 11452 does not guarantee conformity to parts of ISO 11451. Nevertheless, the ISO 11452 series component tests are essential for giving a suffici
31、ent level of confidence before integration on vehicle(s). ISO 2015 All rights reserved vBS ISO 11452-1:2015BS ISO 11452-1:2015Road vehicles Component test methods for electrical disturbances from narrowband radiated electromagnetic energy Part 1: General principles and terminology1 ScopeThis part of
32、 ISO 11452 specifies general conditions, defines terms, gives practical guidelines, and establishes the basic principles of the component tests used in the other parts of ISO 11452 for determining the immunity of electronic components of passenger cars and commercial vehicles to electrical disturban
33、ces from narrowband radiated electromagnetic energy, regardless of the vehicle propulsion system (e.g. spark-ignition engine, diesel engine, electric motor).The electromagnetic disturbances considered are limited to continuous narrowband electromagnetic fields. A wide frequency range (d.c. and 15 Hz
34、 to 18 GHz) is allowed for the immunity testing of the components in this and in the other parts of ISO 11452.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edit
35、ion cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.CISPR 16-1-2; Specification for radio disturbance and immunity measuring apparatus and methods Part 1-2: Radio disturbance and immunity measuring apparatus Ancillary equipment
36、Conducted disturbances; Edition 1.23 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1absorber-lined shielded enclosureshielded enclosure/screened room with radio-frequency-absorbing material on its internal ceiling and wallsNote 1 to entry: The co
37、mmon practice is for the room to have a metallic floor, but absorbing material may also be used on the floor.3.2amplitude modulationAMprocess by which the amplitude of a carrier wave is varied following a specified law, resulting in an AM signalINTERNATIONAL STANDARD ISO 11452-1:2015(E) ISO 2015 All
38、 rights reserved 1BS ISO 11452-1:2015ISO 11452-1:2015(E)3.3artificial mains networkAMNnetwork that provides a defined impedance to the EUT at radio frequencies, couples the disturbance voltage to the measuring receiver, and decouples the test circuit from the supply mainsNote 1 to entry: There are t
39、wo basic types of AMN, the V-network (V-AMN) which couples the unsymmetrical voltages, and the delta-network which couples the symmetric and the asymmetric voltages separately. The terms line impedance stabilization network (LISN) and V-AMN are used.Note 2 to entry: Network inserted in the power mai
40、ns of the vehicle in charging mode and provides, in a given frequency range, a specified load impedance and which isolates the vehicle from the power mains in that frequency range.3.4artificial networkANnetwork inserted in the supply lead or signal/load lead of apparatus to be tested which provides,
41、 in a given frequency range, a specified load impedance for the measurement of disturbance voltages and which can isolate the apparatus from the supply or signal sources/loads in that frequency rangeNote 1 to entry: Network inserted in the d.c. power lines (low voltage and/or high voltage) of the DU
42、T which provides, in a given frequency range, a specified load impedance and which isolates the DUT from the d.c. power supply in that frequency range.3.5asymmetric artificial networkAANnetwork used to measure (or inject) asymmetric (common mode) voltages on unshielded symmetric signal (e.g. telecom
43、munication) lines while rejecting the symmetric (differential mode) signalNote 1 to entry: This network is inserted in the communication/signal lines of the vehicle in charging mode to provide a specific load impedance and/or a decoupling (e.g. between communication/signal lines and power mains).3.6
44、bondedgrounded connection providing the lowest possible impedance (resistance and inductance) connection between two metallic parts with a d.c. resistance which shall not exceed 2,5 mNote 1 to entry: A low current (100 mA) 4-wire milliohm metre is recommended for this measurement.3.7broadband artifi
45、cial networkBANdevice used in power, signal, and control lines that presents a controlled impedance to the DUT over a specified frequency range while allowing the DUT to be interfaced to its support system3.8bulk currenttotal amount of common mode current in a harness3.9compression pointinput signal
46、 level at which the measurement system becomes non-linear, when the output value will deviate from the value given by an ideal linear system3.10couplingmeans or device for transferring power between systemsSOURCE: IEC 60050-726, modified2 ISO 2015 All rights reservedBS ISO 11452-1:2015ISO 11452-1:20
47、15(E)3.11current injection probedevice for injecting current in a conductor without interrupting the conductor and without introducing significant impedance into the associated circuits3.12current (measuring) probedevice for measuring the current in a conductor without interrupting the conductor and
48、 without introducing significant impedance into the associated circuitsSOURCE: IEC 60050-1613.13degradation (of performance)undesired departure in the operational performance of any device, equipment, or system from its intended performanceNote 1 to entry: The term “degradation” also applies to temp
49、orary or permanent failure.SOURCE: IEC 60050-1613.14dual directional couplerfour-port device consisting of two transmission lines coupled together in such a manner that a single travelling wave in any one transmission line will induce a single travelling wave in the other, the direction of propagation of the latter wave being dependent upon that of the formerSOURCE: IEC 60050-726, modified3.15electromagnetic compatibilityEMCability of equipment or system to function satisfactorily in its electromagnetic environ
