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 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

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

General Information

• Status: Published
• Publication Date: 02-May-2023
• ICS: 43.120 - Electric road vehicles
• Technical Committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks
• Drafting Committee: WG 7 - TC 69/WG 7
• Current Stage: PPUB - Publication issued
• Start Date: 03-May-2023
• Completion Date: 26-May-2023

Relations

• Revises: IEC TS 61980-2:2019 - Electric vehicle wireless power transfer (WPT) systems - Part 2: Specific requirements for communication between electric road vehicle (EV) and infrastructure
• Effective Date: 05-Sep-2023

Overview

IEC 61980-2:2023 is an international standard established by the International Electrotechnical Commission (IEC) that defines specific requirements for communication and activities within magnetic field wireless power transfer (MF-WPT) systems used for electric vehicles (EVs). This standard focuses on the operational and functional aspects of MF-WPT system communication, addressing interoperability between EV supply equipment and vehicles in wireless charging scenarios. It is aligned to support MF-WPT systems in accordance with IEC 61980-3 and ISO 19363 standards.

The document lays a foundational framework for effective communication protocols, positioning techniques, authorization procedures, and power transfer activities specific to MF-WPT systems, aiming to enhance safety, interoperability, and efficiency in wireless EV charging.

Key Topics

• System Structure & Interoperability: Defines the architecture of MF-WPT communication systems and their interoperability concepts ensuring seamless interaction between charging units and EV devices.

• Communication Requirements: Details general and specific protocols for the communication setup, including pairing, authorization, compatibility checks, and control messaging during wireless power transfer sessions.

• Positioning and Alignment: Covers fine positioning and alignment verification methods essential to optimize power transfer efficiency and safety during docking and charging.

• Power Transfer Activities: Specifies procedures for preparing, initiating, performing, and stopping wireless power transmission from the supply device to the EV.

• Safety Monitoring & Diagnostics: Introduces continuous monitoring requirements and diagnostic activities to ensure safe operation throughout the charging process.

• Exception Handling: Prescribes handling mechanisms for communication errors, operational faults, and safety-related exceptions during MF-WPT interactions.

• Use Cases & Methodologies: Includes informative annexes describing practical use cases, signaling methods, and physical definitions of communication links relevant in MF-WPT systems.

Applications

IEC 61980-2:2023 is critical for manufacturers, developers, and operators involved in the design, implementation, and operation of magnetic field wireless power transfer systems for electric vehicles. Its applications include:

• Development of wireless EV charging stations that comply with international communication standards to ensure compatibility with various EV models.

• Enabling fine positioning technologies for automatic alignment between EVs and charging pads, improving charging efficiency.

• Guiding the implementation of secure and reliable communication protocols for authorization, service selection, and power transfer control in EV wireless charging.

• Providing frameworks to support service diagnostics and safety monitoring to mitigate risks during wireless power transfer operations.

• Establishing protocols for future innovations such as charging vehicles in motion, supporting two- and three-wheel EVs, and bidirectional power transfer systems.

This allows stakeholders to build reliable, interoperable, and safe wireless charging infrastructures that accelerate EV adoption and enhance user experience.

Related Standards

IEC 61980-2:2023 is part of the broader IEC 61980 series addressing electric vehicle wireless power transfer systems and is directly linked to:

• IEC 61980-1: General requirements for EV wireless power transfer systems.
• IEC 61980-3: Specific requirements for magnetic field wireless power transfer systems which complement the communication protocols defined in Part 2.
• ISO 19363: International standard defining wireless power transfer for electric vehicles, harmonizing with IEC specifications.
• Future standards expanding to cover two- and three-wheel vehicles, dynamic charging of EVs in motion, and bidirectional power flow.

Together, these standards create a comprehensive framework supporting the global development and deployment of wireless electric vehicle charging technologies.

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Keywords: IEC 61980-2:2023, wireless power transfer, MF-WPT, electric vehicle charging, EV wireless charging, communication protocols, alignment verification, power transfer safety, EV charging standards, IEC electric vehicle standards.

Standards Content (Sample)

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
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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

– 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

– 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

– 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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.

– 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

– 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 effort to facilitate communications among
computers of different manufacture and technology.
[SOURCE: ISO 15784-3:2008, 3.11, modified – Note 2 to entry has been added.]
3.16
point to point signal
P2PS
unidirectional wireless link between EV device and supply device
3.17
primary device
off-board component that generates and shapes the magnetic field for power transfer

– 13 –
3.18
secondary device
on-board component that captures the magnetic field
3.19
secondary device ground clearance
vertical distance between the ground surface and the lowest point of the secondary device
including the housing
Note 1 to entry: The lower surface does not need to be planar or parallel to the ground surface.
3.20
supply device P2PS controller
off-board equipment that controls the supply device's P2PS
3.21
supply equipment communication controller
SECC
entity which implements the communication to one or multiple EVCCs
Note 1 to entry: Functions of a supply equipment communication controller may control input and output channels,
data encryption, or data transfer between the vehicle and the SECC.
Note 2 to entry: One SECC, in certain configurations, can control multiple supply devices.
[SOURCE: ISO 15118-1:2019, 3.1.68, modified – The words "and which may be able to interact
with secondary actors" have been removed from the definition. Notes 1 and 2 to entry have
been deleted, and a new note to entry has been added.]
3.22
supply power circuit
SPC
off-board component assembly comprising the primary device and supply power electronics, as
well as the electrical and mechanical connections
Note 1 to entry: Supply power circuit in this document is defined specifically for MF-WPT systems.
3.23
supply power electronics
off-board component that converts the power and frequency fro
...