EN IEC 61980-2:2023
(Main)Electric vehicle wireless power transfer (WPT) systems - Part 2: Specific requirements for MF-WPT system communication and activities
Electric vehicle wireless power transfer (WPT) systems - Part 2: Specific requirements for MF-WPT system communication and activities
This Part of IEC 61980 addresses communication and activities of magnetic field wireless power transfer (MF-WPT) systems. The requirements in this document are intended to be applied for MF-WPT systems accordin to IEC 61980-3 and ISO 19363. The aspects covered in this document include: - operational and functional characteristics of the MF-WPT communication system and related activities - operational and functional characteristics of the positioning system The following aspects are under consideration for future documents: - requirements for two- and three-wheel vehicles, - requirements for MF-WPT systems supplying power to EVs in motion, and - requirements for bidirectional power transfer Note: Any internal communication at Supply device or EV device is not in the scope of this document
Kontaktlose Energieübertragungssysteme (WPT) für Elektrofahrzeuge - Teil 2: Besondere Anforderungen an die Kommunikation und Aktivitäten von MF-WPT-Systemen
Systèmes de transfert de puissance sans fil (WPT) pour véhicules électriques - Partie 2: Exigences spécifiques pour la communication et les activités des systèmes MF-WPT
IEC 61980-2:2023 traite de la communication et des activités des systèmes de transfert d’énergie sans fil en champ magnétique (MF-WPT). Les exigences du présent document sont destinées à être appliquées aux systèmes MF-WPT conformément aux normes CEI 61980-3 et ISO 19363. Les aspects traités dans le présent document comprennent les caractéristiques opérationnelles et fonctionnelles du système de communication MF-WPT et des activités connexes, ainsi que les caractéristiques opérationnelles et fonctionnelles du système de positionnement. Les aspects ci-après sont à l’étude pour les futurs documents: - prescriptions applicables aux véhicules à deux et trois roues; les - exigences relatives aux systèmes MF-WPT alimentant les véhicules électriques en mouvement; - exigences pour le transfert de puissance bidirectionnel. NOTE Toute communication interne au niveau du dispositif d’alimentation ou du dispositif EV n’entre pas dans le domaine d’application du présent document
Brezžični sistemi za prenos električne energije za električna vozila (WPT) - 2. del: Posebne zahteve za komunikacijo med sistemom MF-WPT in dejavnostmi (IEC 61980-2:2023)
Ta del IEC 61980 obravnava komunikacijo in dejavnosti sistemov MF-WPT.
Zahteve iz tega dokumenta so namenjene uporabi za sisteme MF-WPT v skladu s standardoma IEC 61980-3 in ISO 19363.
V tem dokumentu so zajeti naslednji vidiki:
– operativne lastnosti in lastnosti delovanja komunikacijskega sistema MF-WPT ter povezanih dejavnosti
– operativne lastnosti in lastnosti delovanja sistema za določanje položaja
Za morebitno vključitev v prihodnje dokumente se obravnavajo naslednji vidiki:
– zahteve za dvo- in trikolesna vozila;
– zahteve za sisteme MF-WPT, ki napajajo električna vozila v gibanju;
– zahteve za dvosmerni prenos energije.
Opomba: Na področje uporabe tega dokumenta ne spada notranja komunikacija na ravni napajalne naprave ali naprave električnega vozila (EV).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2023
Brezžični sistemi za prenos električne energije za električna vozila (WPT) - 2. del:
Posebne zahteve za komunikacijo med sistemom MF-WPT in dejavnostmi (IEC
61980-2:2023)
Electric vehicle wireless power transfer (WPT) systems - Part 2: Specific requirements
for MF-WPT system communication and activities (IEC 61980-2:2023)
Kontaktlose Energieübertragungssysteme (WPT) für Elektrofahrzeuge - Teil 2:
Besondere Anforderungen an die Kommunikation und Aktivitäten von MF-WPT-
Systemen (IEC 61980-2:2023)
Systèmes de transfert de puissance sans fil (WPT) pour véhicules électriques - Partie 2:
Exigences spécifiques pour la communication et les activités des systèmes MF-WPT
(IEC 61980-2:2023)
Ta slovenski standard je istoveten z: EN IEC 61980-2:2023
ICS:
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61980-2
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2023
ICS 43.120 Supersedes CLC IEC/TS 61980-2:2020
English Version
Electric vehicle wireless power transfer (WPT) systems - Part 2:
Specific requirements for MF-WPT system communication and
activities
(IEC 61980-2:2023)
Systèmes de transfert de puissance sans fil (WPT) pour Kontaktlose Energieübertragungssysteme (WPT) für
véhicules électriques - Partie 2: Exigences spécifiques pour Elektrofahrzeuge - Teil 2: Besondere Anforderungen an die
la communication et les activités des systèmes MF-WPT Kommunikation und Aktivitäten von MF-WPT-Systemen
(IEC 61980-2:2023) (IEC 61980-2:2023)
This European Standard was approved by CENELEC on 2023-06-07. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61980-2:2023 E
European foreword
The text of document 69/881/FDIS, future edition 1 of IEC 61980-2, prepared by IEC/TC 69 "Electrical
power/energy transfer systems for electrically propelled road vehicles and industrial trucks" was
submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61980-2:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-03-07
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-06-07
document have to be withdrawn
This document supersedes CLC IEC/TS 61980-2:2020 and all of its amendments and corrigenda (if
any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61980-2:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60038:2009 NOTE Approved as EN 60038:2011
ISO 15118 (series) NOTE Approved as EN ISO 15118 (series)
ISO 19363:2020 NOTE Approved as EN ISO 19363:2021 (not modified)
Annex A
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61980-1 - Electric vehicle wireless power transfer EN IEC 61980-1 -
(WPT) systems - Part 1: General
requirements
IEC 61980-3 2022 Electric vehicle wireless power transfer EN IEC 61980-3 2022
(WPT) systems - Part 3: Specific
requirements for magnetic field wireless
power transfer systems
ISO 15118-8 2020 Road vehicles - Vehicle to grid EN ISO 15118-8 2020
communication interface - Part 8: Physical
layer and data link layer requirements for
wireless communication
ISO 15118-20 - Road vehicles - Vehicle to grid EN ISO 15118-20 -
communication interface - Part 20: 2nd
generation network layer and application
layer requirements
IEC 61980-2 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric vehicle wireless power transfer (WPT) systems –
Part 2: Specific requirements for MF-WPT system communication and activities
Systèmes de transfert de puissance sans fil (WPT) pour véhicules électriques –
Partie 2: Exigences spécifiques pour la communication et les activités des
systèmes MF-WPT
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 43.120 ISBN 978-2-8322-6858-2
– 2 – IEC 61980-2:2023 © IEC 2023
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Abbreviated terms . 14
5 General system structure and interoperability concept . 14
5.1 System structure . 14
5.2 Interoperability concept . 15
6 General communication requirements . 15
7 Communication procedure during an MF-WPT session . 16
7.1 General . 16
7.2 Activities . 18
7.2.1 Communication setup . 18
7.2.2 Fine positioning . 18
7.2.3 Pairing . 23
7.2.4 Authorization and service selection . 29
7.2.5 Final compatibility check . 30
7.2.6 Alignment check . 31
7.2.7 Prepare power transfer . 33
7.2.8 Perform power transfer . 34
7.2.9 Stop power transfer . 38
7.2.10 Terminate communication . 39
7.2.11 WPT spot vacancy detection . 39
7.2.12 Time scheduled power transfer . 40
7.2.13 Safety monitoring and diagnostics . 41
7.2.14 Wake-up after power outage . 43
7.3 Exception handling. 43
7.3.1 General . 43
7.3.2 Exception descriptions . 44
7.3.3 Supply device exception handling (WPT_S_ERR) . 45
7.3.4 EV device exception handling (WPT_V_ERR) . 46
Annex A (informative) Use cases . 47
A.1 General . 47
A.2 Use case descriptions . 48
A.2.1 UC select supply device . 48
A.2.2 UC compatibility check . 48
A.2.3 UC fine positioning . 49
A.2.4 UC prepare power transfer . 50
A.2.5 UC safety monitoring and diagnostics . 51
A.2.6 UC perform power transfer . 52
A.2.7 UC stop power transfer . 52
A.2.8 UC sleep mode (optional) . 53
Annex B (informative) Physical definition of links and signals. 55
B.1 General . 55
B.2 System architecture . 55
IEC 61980-2:2023 © IEC 2023
– 3 –
B.3 WLAN . 55
B.4 LF signal . 55
B.5 LPE . 57
B.6 Power check . 58
B.7 External confirmation means . 58
Annex C (informative) Methods of P2PS signaling . 59
C.1 General . 59
C.2 Fine positioning . 59
C.2.1 General . 59
C.2.2 Manual . 59
C.2.3 LF positioning emitted by EV . 59
C.2.4 LF positioning emitted by supply device . 62
C.2.5 LF parameter exchange . 63
C.2.6 Low power excitation (LPE) . 66
C.3 Pairing . 67
C.3.1 General . 67
C.3.2 Coding pattern specification. 67
C.3.3 Low power excitation (LPE) . 68
C.3.4 LF signal . 68
C.3.5 External confirmation . 69
C.4 Alignment check . 70
C.4.1 General . 70
C.4.2 Power check . 70
C.4.3 LPE . 71
Annex D (normative) State diagrams of WPT process . 72
D.1 General . 72
D.2 Supply device state definitions . 72
D.2.1 Supply device state diagram . 72
D.2.2 System On (WPT_S_ON) . 72
D.2.3 Session initiated (WPT_S_SI) . 73
D.2.4 Awaiting alignment (WPT_S_AA) . 73
D.2.5 Idle (WPT_S_IDLE) . 73
D.2.6 Power transfer active (WPT_S_PTA) . 73
D.2.7 Power transfer (WPT_S_PT) . 73
D.2.8 Service terminated occupied (WPT_S_STO) . 73
D.2.9 System Off (WPT_S_OFF) . 74
D.2.10 Sleep (WPT_S_SLP) . 74
D.2.11 StandBy (WPT_S_STBY) . 74
D.3 Supply device state transitions . 74
D.3.1 General . 74
D.3.2 TS_03 and TS_10 . 76
D.3.3 TS_04 and TS_05 . 76
D.3.4 TS_06 . 77
D.3.5 TS_07. TS_09 and TS_12 . 77
D.3.6 TS_08, TS_14 and TS_16 . 78
D.3.7 TS_13 . 79
D.3.8 TS_11 . 80
D.3.9 TS_15 . 80
D.3.10 TS_17 . 81
– 4 – IEC 61980-2:2023 © IEC 2023
D.4 EV device state definitions . 82
D.4.1 EV device state diagram . 82
D.4.2 System On (WPT_V_ON) . 82
D.4.3 Session initiated (WPT_V_SI) . 82
D.4.4 Awaiting alignment (WPT_V_AA) . 83
D.4.5 Idle (WPT_V_IDLE) . 83
D.4.6 Power transfer active (WPT_V_PTA) . 83
D.4.7 Power transfer (WPT_V_PT) . 83
D.4.8 Sleep (WPT_V_SLP) . 83
D.4.9 Standby (WPT_V_STBY) . 83
D.4.10 System Off (WPT_V_OFF) . 83
D.5 EV state transitions . 83
D.5.1 General . 83
D.5.2 TV_03 . 84
D.5.3 TV_05 . 85
D.5.4 TV_06 . 85
D.5.5 TV_07 and TV_15 . 86
D.5.6 TV_08, TV_14 and TV_16 . 87
D.5.7 TV_04 and TV_09 . 88
D.5.8 TV_10 . 89
D.5.9 TV_11 . 89
D.5.10 TV_17 . 90
Annex E (informative) Marking of primary device . 91
E.1 General . 91
E.2 Requirements for detectability . 92
E.3 Usage for positioning – Parameter setting and message exchange . 92
E.4 Usage for pairing . 93
E.4.1 General . 93
E.4.2 Parameter setting and message exchange . 93
Bibliography . 94
Figure 1 – Example of system structure . 15
Figure 2 – Chain of activities . 17
Figure 3 – Natural offset with different coil geometries . 20
Figure 4 – Sequence of parameter exchange for pairing using LPE . 25
Figure 5 – Sequence of parameter exchange for pairing using LF signal emitted by the
EV/EV device . 26
Figure 6 – Sequence of parameter exchange for pairing using LF signal emitted by the
primary device . 27
Figure 7 – Sequence of parameter exchange for pairing using active optical means
(e.g., LED) . 28
Figure 8 – Sequence of parameter exchange for pairing using passive optical means
(e.g., marker at primary device) . 29
Figure 9 – Sequence of parameter exchange for pairing using external confirmation . 29
Figure 10 – MF-WPT control system . 35
Figure 11 – Classification of system events . 43
Figure A.1 – Use cases specific to wireless power transfer . 47
IEC 61980-2:2023 © IEC 2023
– 5 –
Figure B.1 – Example arrangement of the auxiliary LF receivers/transmitters for the
primary device and the vehicle . 56
Figure B.2 – Example arrangement of the auxiliary LF transmitters/receivers for the
primary device and the EV . 57
Figure C.1 – Example OOK data modulation . 60
Figure C.2 – Generalized Manchester encoding . 60
Figure C.3 – Example LF signal data format for fine positioning . 61
Figure C.4 – Example Explanation of parameters for LF fine positioning . 65
Figure C.5 – Coding pattern timing and examples . 67
Figure C.6 – Example LF signal data format for pairing . 68
Figure D.1 – Supply device state diagram . 72
Figure D.2 – Transition TS_03 and TS_10 . 76
Figure D.3 – Transition TS_04 and TS_05 . 76
Figure D.4 – Transition TS_06 . 77
Figure D.5 – Transition TS_07, TS_09, TS_12 . 78
Figure D.6 – Transition TS_08, TS_14, TS_16 . 79
Figure D.7 – Transition TS_13 . 79
Figure D.8 – Transition TS_11 . 80
Figure D.9 – Transition TS_15 . 81
Figure D.10 – Transition TS_17 . 82
Figure D.11 – EV device state diagram . 82
Figure D.12 – Transition TV_03 . 85
Figure D.13 – Transition TV_05 . 85
Figure D.14 – Transition TV_06 . 86
Figure D.15 – Transition TV_07, TV_15 . 87
Figure D.16 – Transition TV_08, TV_14, TV_16 . 88
Figure D.17 – Transition TV_04 and TV_09 . 88
Figure D.18 – Transition TV_10 . 89
Figure D.19 – Transition TV_11 . 90
Figure D.20 – Transition TV_17 . 90
Figure E.1 – Example for a marking for a primary device . 92
Table 1 – Fine positioning setup data from EV . 21
Table 2 – Fine positioning setup data from SECC . 22
Table 3 – Data transfer during positioning . 23
Table 4 – Pairing parameters provided by the EVCC to the SECC . 24
Table 5 – Pairing parameters provided by the SECC to the EVCC . 24
Table 6 – Final compatibility parameters from EV . 31
Table 7 – Final compatibility check parameters from SECC . 31
Table 8 – Alignment check parameter sent by the EVCC. 33
Table 9 – Alignment check response parameters sent by the SECC . 33
Table 10 – Symbols for MF-WPT control system . 35
Table 11 – MF-WPT controller inputs and outputs . 36
Table 12 – Relative response time for control loops . 36
– 6 – IEC 61980-2:2023 © IEC 2023
Table 13 – Perform power transfer request parameters . 37
Table 14 – Perform power transfer response parameters . 38
Table 15 – Exception handling . 44
Table 16 – Error respond parameters . 46
Table 17 – Error request parameters . 46
Table A.1 – UC select supply device . 48
Table A.2 – UC compatibility check . 49
Table A.3 – UC fine positioning . 50
Table A.4 – UC prepare power transfer . 51
Table A.5 – UC safety monitoring and diagnostics . 52
Table A.6 – UC perform power transfer . 52
Table A.7 – UC stop power transfer . 53
Table A.8 – UC sleep mode . 54
Table C.1 – Additional LF fine positioning setup parameter from EV . 63
Table C.2 – Additional LF fine positioning setup data from SECC . 64
Table C.3 – Additional LF positioning data exchange . 66
Table D.1 – Supply device state transitions . 74
Table D.2 – EV device state transitions . 83
IEC 61980-2:2023 © IEC 2023
– 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC VEHICLE WIRELESS POWER
TRANSFER (WPT) SYSTEMS –
Part 2: Specific requirements for MF-WPT
system communication and activities
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61980-2 has been prepared by IEC technical committee 69: Electrical power/energy
transfer systems for electrically propelled road vehicles and industrial trucks. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
69/881/FDIS 69/896/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
– 8 – IEC 61980-2:2023 © IEC 2023
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
In this document, the following print types are used:
• compliance statement: italic type;
• transitions in the state diagrams for infrastructure and vehicle: bold type;
• states: bold type.
A list of all parts of the IEC 61980 series, published under the general title Electric vehicle
wireless power transfer (WPT) systems, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
IEC 61980-2:2023 © IEC 2023
– 9 –
INTRODUCTION
The IEC 61980 series is published in separate parts according to the following structure:
– IEC 61980-1 covers general requirements for electric road vehicle (EV) wireless power
transfer (WPT) systems including general background and definitions. (e.g. efficiency,
electrical safety, EMC, EMF);
– IEC 61980-2 specifically applies to magnetic field wireless power transfer (MF-WPT) for
electric road vehicles (EV) and covers specific system requirements including activities and
communication between the electric road vehicle side and the off-board side including
general background and definitions;
– IEC 61980-3 covers specific power transfer requirements for the off-board side of magnetic
field wireless power transfer systems for electric road vehicles (e.g. efficiency, electrical
safety, EMC, EMF).
Requirements for on-board side of MF-WPT for electric road vehicles are covered in ISO 19363.
This document has a structure that is independent of IEC 61980-1.
Reference to "technology specific parts" always refer to other parts of the IEC 61980 series.
– 10 – IEC 61980-2:2023 © IEC 2023
ELECTRIC VEHICLE WIRELESS POWER
TRANSFER (WPT) SYSTEMS –
Part 2: Specific requirements for MF-WPT
system communication and activities
1 Scope
This part of IEC 61980 addresses communication and activities of magnetic field wireless power
transfer (MF-WPT) systems.
The requirements in this document are intended to be applied for MF-WPT systems according
to IEC 61980-3 and ISO 19363.
The aspects covered in this document include
– operational and functional characteristics of the MF-WPT communication system and
related activities, and
– operational and functional characteristics of the positioning system.
The following aspects are under consideration for future documents:
– requirements for two- and three-wheel vehicles;
– requirements for MF-WPT systems supplying power to EVs in motion;
– requirements for bidirectional power transfer.
NOTE Any internal communication at supply device or EV device is not in the scope of this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61980-1, Electric vehicle wireless power transfer (WPT) systems – Part 1: General
requirements
IEC 61980-3:2022, Electric vehicle wireless power transfer (WPT) systems – Part 3: Specific
requirements for magnetic field wireless power transfer systems
nd
ISO 15118-20, Road vehicles – Vehicle to grid communication interface – Part 20: 2
generation network layer and application layer requirements
ISO 15118-8:2020, Road vehicles – Vehicle to grid communication interface – Part 8: Physical
layer and data link layer requirements for wireless communication
IEC 61980-2:2023 © IEC 2023
– 11 –
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61980-1, IEC 61980‑3
and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
alignment
relative position in X- and Y-direction of the secondary device to the primary device for a given
secondary device ground clearance
3.2
centre alignment point
geometrical centre of the alignment tolerance area
Note 1 to entry: The centre alignment point is always relative to the primary and secondary device combination
and is dependent upon magnetic characteristics.
3.3
collision avoidance code
CAC
temporary identifier of each antenna to distinguish a P2PS signal from the P2PS signals sent
by other antennas or other vehicles
3.4
compatibility class A WPT system
compatibility class A supply device in combination with a compatibility class A EV device
Note 1 to entry: For class A supply device, see IEC 61980-3, and for class A EV device, see ISO 19363.
3.5
compatibility class B WPT system
compatibility class B supply device in combination with a compatibility class A EV device or
compatibility class B EV device
Note 1 to entry: For class B supply device, see IEC 61980-3, and for class A EV device or compatibility class B EV
device, see ISO 19363.
3.6
electric vehicle communication controller
EVCC
embedded system, within the vehicle, that implements the communication between the vehicle
and the SECC in order to support specific functions
Note 1 to entry: Such specific functions could be, e.g., controlling input and output channels, encryption or data
transfer between the vehicle and the SECC.
[SOURCE: ISO 15118-1:2019, 3.1.31]
3.7
EV device
on-board component assembly comprising the components necessary for WPT
Note 1 to entry: Ancillary systems used for supporting the operation of MF-WPT are also included (e.g., positioning).
– 12 – IEC 61980-2:2023 © IEC 2023
3.8
EV device P2PS controller
on-board equipment that controls the EV device's P2PS
3.9
EV power circuit
EVPC
on-board component assembly, comprising the secondary device and EV power electronics, as
well as the electrical and mechanical connections
Note 1 to entry: EVPC in this document is defined specifically for MF-WPT systems.
3.10
foreign object
object that is not an attached part of the vehicle or the WPT system
3.11
low frequency
LF
directed magnetic field operating in the very low frequency or low frequency ITU radio bands
(LF and VLF, i.e., from 3 kHz to 300 kHz) as described in Clause B.4
3.12
low power excitation
LPE
energizing of the primary device as a P2PS
3.13
magnetic field wireless power transfer system
MF-WPT system
system comprising the supply device and the EV device to perform MF-WPT
3.14
natural offset
X- and Y- components of the vector from the centre of the primary device to the centre alignment
point of the secondary device.
3.15
open systems interconnection
OSI
reference model developed by ISO to enable different or similar systems to dialogue with one
another
Note 1 to entry: This model constitutes a reference framework for describing data exchanges. Each layer performs
a service at the request of the adjacent higher layer, and in turn, requests more basic services from the lower layers.
It is described in 7 layers.
Note 2 to entry: Open systems interconnection (OSI) is an international eff
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