IEC PAS 61980-6:2025

IEC PAS 61980-6 ®
Edition 1.0 2025-03
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle wireless power transfer (WPT) systems –
Part 6: Specific requirements for magnetic field dynamic power transfer (MF-D-
WPT) system communication and activities

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IEC PAS 61980-6 ®
Edition 1.0 2025-03
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle wireless power transfer (WPT) systems –

Part 6: Specific requirements for magnetic field dynamic power transfer (MF-D-

WPT) system communication and activities

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120; 29.240.99 ISBN 978-2-8327-0323-6

– 2 – IEC PAS 61980-6:2025 © IEC 2025
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Abbreviated terms . 12
5 General system structure and interoperability concept . 12
5.1 System structure . 12
5.2 Interoperability concept . 13
6 General communication requirements . 14
6.1 General . 14
6.2 Communication and signalling for power management . 14
6.2.1 General . 14
6.2.2 Bidirectional wireless communication . 14
6.2.3 Unidirectional wireless signalling (P2PS) . 15
6.2.4 Bidirectional wireless signalling (P2PS) . 15
7 Communication procedure during an MF-D-WPT session . 16
7.1 General . 16
7.2 Activities . 17
7.2.1 Preparation (supply device) . 17
7.2.2 Preparation (EV device) . 17
7.2.3 Communication setup/Request D-WPT service . 17
7.2.4 Compatibility check/Service authentication . 18
7.2.5 Pairing . 19
7.2.6 Alignment check (lateral direction) . 19
7.2.7 Magnetic coupling check . 19
7.2.8 Power transfer . 19
7.2.9 Inter-inverter segment switching . 21
7.2.10 Stand-by . 21
7.2.11 Power transfer terminate . 22
7.2.12 Terminate D-WPT service session . 23
7.2.13 Parameters definition between EV device and supply device . 23
7.2.14 Safety monitoring and diagnostics . 24
7.2.15 Wake-up after power outage . 24
7.3 Exception handling. 24
7.3.1 General . 24
7.3.2 Exception descriptions . 25
7.3.3 Supply device exceptions . 27
7.3.4 EV device exceptions . 27
Annex A (informative) System architecture. 28
A.1 General . 28
A.2 One supply power electronics drives multiple primary devices . 28
A.2.1 Parallel connection of primary devices . 28
A.2.2 P2PS with magnetic coupling check . 29
A.3 DC (direct current) power distribution . 30

A.4 Corresponding states to each step in passing D-WPT charging area
(included sections and segments) . 31
Annex B (informative) P2PS sensors . 33
B.1 General . 33
B.2 Methods . 33
B.3 P2PS paring sensors . 34
Annex C (informative) Communication of dynamic wireless power transfer for electric
vehicles . 35
C.1 General overview . 35
C.2 Message sequence in the communication for D-WPT . 36
C.3 State transitions in the communication for D-WPT . 37
C.3.1 State transition diagram at D-SECC (in supply device) . 37
C.3.2 State transition diagram at D-EVCC (in EV device) . 38
C.3.3 State transition in D-SECC (supply device) . 39
C.3.4 State transition in D-EVCC (EV device) . 40
Annex D (informative) Communication of dynamic wireless power transfer for electric
vehicles . 41
D.1 General overview . 41
D.2 Communication architecture . 41
D.2.1 Overview . 41
D.2.2 Infrastructure operation strategy . 43
D.3 Detailed communication description . 43
D.3.1 Bidirectional communication: vehicle <-> cloud . 43
D.3.2 Bidirectional communication: management unit <-> cloud . 43
D.3.3 Unidirectional communication: vehicle -> management unit . 44
Annex E (informative) Segment switching based on vehicle detection using
bidirectional P2PS . 45
E.1 General . 45
E.2 Vehicle detection . 46
E.2.1 General . 46
E.2.2 Coupling/decoupling . 47
E.3 Segment switching . 48
E.3.1 General . 48
E.3.2 Group segment switching. 48
E.3.3 Group segment switching with superposition. 49
E.3.4 Calculating the speed of a vehicle . 50
Annex F (informative) Use cases . 51
F.1 General . 51
F.2 Use case descriptions . 51
Annex G (informative) State diagrams of MF-D-WPT process . 55
G.1 General . 55
G.2 Supply device state definitions . 55
G.2.1 Supply device state diagram . 55
G.2.2 System On (DWPT_S_ON) . 56
G.2.3 Session initiated (DWPT_S_SI) . 56
G.2.4 Idle (DWPT_S_IDLE) . 56
G.2.5 Power transfer active (DWPT_S_PTA) . 56
G.2.6 Power transfer (DWPT_S_PT) . 56
G.2.7 Inter-inverter segment switching (DWPT_S_CH) . 56

– 4 – IEC PAS 61980-6:2025 © IEC 2025
G.2.8 System off (DWPT_S_OFF) . 57
G.2.9 Service terminated occupied (DWPT_S_STO) . 57
G.2.10 StandBy (DWPT_S_STBY) . 57
G.2.11 Sleep (DWPT_S_SLP) . 57
G.3 Supply device state transitions . 57
G.3.1 General . 57
G.3.2 TS_03 and TS_10 . 58
G.3.3 TS_04 and TS_05 . 58
G.3.4 TS_06, TS_08 and TS_12 . 59
G.3.5 TS_07, TS_13 and TS_15 . 60
G.3.6 TS_11 . 61
G.3.7 TS_08 . 62
G.3.8 TS_09 . 62
G.3.9 TS_16 . 63
G.3.10 TS_14 . 64
G.4 Vehicle device state definitions . 65
G.4.1 Vehicle device state diagram . 65
G.4.2 System off (DWPT_V_OFF) . 65
G.4.3 System on (DWPT_V_ON) . 65
G.4.4 System initialized (DWPT_V_SI) . 65
G.4.5 Sleep (DWPT_V_SLEEP) . 66
G.4.6 Power transfer active (DWPT_V_PTA) . 66
G.4.7 Power transfer (DWPT_V_PT) . 66
G.4.8 Standby (DWPT_V_STBY) . 66
G.4.9 System off (DWPT_V_OFF) . 67
G.4.10 Inter-inverter segment switching (DWPT_V_CH) . 67
G.5 Vehicle device state transitions . 67
G.5.1 General . 67
G.5.2 TV_03 . 68
G.5.3 TV_04 and TV_05 . 69
G.5.4 TV_07 and TV_15 . 70
G.5.5 TV_08, TV_14 and TV_16 . 71
G.5.6 TV_09 . 72
G.5.7 TV_10 . 72
G.5.8 TV_11 . 73
G.5.9 TV_17 . 74
G.5.10 TV_18 . 74
G.5.11 TV_19 . 75
Bibliography . 76

Figure 1 – Example of an MF-D-WPT system . 13
Figure 2 – Chain of activities . 17
Figure 3 – Communication system . 20
Figure 4 – Example of controlled power transfer trajectory . 21
Figure 5 – Classification of system events . 25
Figure A.1 – Configuration of primary device parallel connection to supply power
electronics . 29
Figure A.2 – Configuration of P2PS with coupling check . 30

Figure A.3 – Configuration of P2PS with coupling check . 31
Figure A.4 – Corresponding states to each step in passing D-WPT charging area . 32
Figure B.1 – Example of auxiliary signal transmitters/receivers arrangements for the
EV device (left) and the supply device (right) . 34
Figure C.1 – Structure of communication in D-WPT . 35
Figure C.2 – Message sequence in D-WPT during inter-inverter segment switching . 37
Figure C.3 – State transition diagram in D-SECC . 38
Figure C.4 – State transition diagram in D-EVCC . 39
Figure D.1 – General overview . 41
Figure D.2 – Components of the system . 42
Figure D.3 – Control strategy of the infrastructure . 43
Figure E.1 – Configuration of VD for dynamic WPT . 45
Figure E.2 – Example of bidirectional P2PS procedure . 47
Figure E.3 – Example of segment switching . 48
Figure E.4 – Example of group segment switching . 49
Figure E.5 – Example of group segment switching with superposition . 49
Figure F.1 – Use cases particularly for dynamic wireless power transfer . 51
Figure G.1 – Supply device state diagram . 55
Figure G.2 – Transition TS_03 and TS_10 . 58
Figure G.3 – Transition TS_04 and TS_05 . 59
Figure G.4 – Transition TS_06, TS_08 and TS_12 . 60
Figure G.5 – Transition TS_07, TS_13 and TS_15 . 61
Figure G.6 – Transition TS_11 . 61
Figure G.7 – Transition TS_08 . 62
Figure G.8 – Transition TS_09 . 63
Figure G.9 – Transition TS_16 . 63
Figure G.10 – Transition TS_14 . 64
Figure G.11 – Vehicle device state diagram . 65
Figure G.12 – Transition TV_03 . 69
Figure G.13 – Transition TV_04 and TV_05 . 70
Figure G.14 – Transition TV_07 and TV_15 . 71
Figure G.15 – Transition TV_08, TV_14 and TV_16 . 72
Figure G.16 – Transition TV_09 . 72
Figure G.17 – Transition TV_10 . 73
Figure G.18 – Transition TV_11 . 73
Figure G.19 – Transition TV_17 . 74
Figure G.20 – Transition TV_18 . 74
Figure G.21 – Transition TV_19 . 75

Table 1 – Requirement for the communication interface between one SECC and one
EVCC . 15
Table 2 – Requirement for P2PS system in unidirectional P2PS . 15
Table 3 – Specification of P2PS system in unidirectional P2PS . 15
Table 4 – Requirement for P2PS system in bidirectional P2PS . 16

– 6 – IEC PAS 61980-6:2025 © IEC 2025
Table 5 – Specification of P2PS system in bidirectional P2PS . 16
Table 6 – Communication information for Communication setup/Request D-WPT
service . 18
Table 7 – Communication information for compatibility check . 18
Table 8 – Communication information for power transfer . 21
Table 9 – Communication information for power transfer stand-by . 22
Table 10 – Communication information for power transfer terminated . 22
Table 11 – Communication information for power transfer service session . 23
Table 12 – Parameters sent from EV device to supply device . 23
Table 13 – Parameters sent from supply device to EV device . 24
Table 14 – Exception handling . 25
Table B.1 – Communication information for pairing . 33
Table C.1 – State transition in D-SECC . 39
Table C.2 – State transition in D-EVCC . 40
Table E.1 – Communication information for vehicle detecting . 48
Table F.1 – UC Checking adjacent D-SECC . 52
Table F.2 – UC Perform power transfer . 52
Table F.3 – UC Checking vehicle on segment . 52
Table F.4 – UC Perform Inter-inverter_segment_siwtching . 53
Table F.5 – UC Compatibility check . 54
Table G.1 – Supply device state transitions . 57
Table G.2 – Vehicle device state transitions . 67

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC VEHICLE WIRELESS POWER TRANSFER (WPT) SYSTEMS –

Part 6: Specific requirements for magnetic field dynamic power transfer
(MF-D-WPT) system communication and activities

FOREWORD
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6) All users should ensure that they have the latest edition of this publication.
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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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
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the latest information, which may be obtained from the patent database available at https://patents.iec.ch [and/or]
www.iso.org/patents. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61980-6 has been prepared by IEC technical committee 69: Electrical power/energy
transfer systems for electrically propelled road vehicles and industrial trucks. It is a Publicly
Available Specification.
The text of this Publicly Available Specification is based on the following documents:
Draft Report on voting
69/1022/DPAS 69/1040/RVDPAS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
– 8 – IEC PAS 61980-6:2025 © IEC 2025
This PAS shall remain valid for an initial maximum period of 2 years starting from the publication
date. The validity may be extended for a single period up to a maximum of 2 years, at the end
of which it shall be transformed, with or without changes, into another type of normative
document, or shall be withdrawn.
The language used for the development of this Publicly Available Specification is English.
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/publications.
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, or
• revised.
NOTE In accordance with ISO/IEC Directives, Part 1, IEC PASs are automatically withdrawn after 4 years.

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 and covers specific requirements for system 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);
– IEC 61980-4 covers specific power transfer requirements for the off-board side of magnetic
field high power wireless power transfer (H-WPT) systems for electric vehicles electric road
vehicles (e.g. efficiency, electrical safety, EMC, EMF);
– IEC PAS 61980-5 covers specific power transfer requirements for the off-board side of
magnetic field dynamic wireless power transfer (MF-D-WPT) systems for electric vehicles
electric road vehicles (e.g. efficiency, electrical safety, EMC, EMF);
– IEC 61980-6 specifically applies to magnetic field dynamic wireless power transfer for
electric road vehicles and covers specific requirements for system activities and
communication between the electric road vehicle side and the off-board side, including
general background and definitions.
Requirements for the on-board side of MF-WPT and MF-D-WPT for electric road vehicles are
covered in ISO 5474-6.
___________
Under preparation. Stage at the time of publication: IEC/CD 61980-4:2024.

– 10 – IEC PAS 61980-6:2025 © IEC 2025
ELECTRIC VEHICLE WIRELESS POWER TRANSFER (WPT) SYSTEMS –

Part 6: Specific requirements for magnetic field dynamic power transfer
(MF-D-WPT) system communication and activities

1 Scope
This part of IEC 61980 addresses communication and activities of magnetic field dynamic
wireless power transfer (MF-D-WPT) systems. The power transfer takes place while the electric
vehicle (EV) is in motion.
NOTE 1 "In motion" includes a temporally stop on the road.
The requirements in this document are intended to be applied for MF-D-WPT systems according
to IEC PAS 61980-5 and ISO 5474-6.
Supply device fulfilling the requirements in this document are intended to operate with EV
devices fulfilling the requirements described in ISO 5474-6.
The aspects covered in this document include:
– operational and functional characteristics of the MF-D-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 bidirectional power transfer
NOTE 2 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 61980-1:2020, Electric vehicle wireless power transfer (WPT) systems – Part 1: General
requirements
IEC 61980-2:2023, Electric vehicle wireless power transfer (WPT) systems – Part 2: Specific
requirements for MF-WPT system communication and activities
IEC 61980-3:2022, Electric vehicle wireless power transfer (WPT) systems – Part 3: Specific
requirements for magnetic field wireless power transfer systems
ISO PAS CD 5474-6:2023, Electrically propelled road vehicles — Functional requirements and
safety requirements for power transfer — Part 6: Magnetic field wireless power transfer —
Safety and interoperability requirements for heavy-duty vehicles
ISO 15118-20, Road vehicles – Vehicle to grid communication interface – Part 20: 2nd
generation network layer and application layer requirements

3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61980-1:2020,
IEC 61980-2:2023, IEC 61980-3:2022, IEC PAS 61980-5 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
D-EVCC
dynamic WPT electric vehicle communication controller
embedded system, within the vehicle, that implements the communication between the vehicle
and the SECC in order to support specific functions in dynamic WPT
3.2
D-SECC
dynamic WPT supply equipment communication controller
entity which implements the communication to one or multiple EVCCs in dynamic WPT
3.3
DWMM
dynamic WPT mobility manager
entity that implements inter-inverter segment switching while tracking the mobility of EV device
3.4
DWMU
D-WPT management unit
off-board component assembly consisted of one or more supply device module
3.5
D-WPT charging site
physical location of one or more D-WPT charging spots
3.6
D-WPT session
D-WPT activities starting with successful communication setup and ending with terminate
communication
3.7
inter-inverter segment switching
change of connection and control between D-SECC of one inverter and D-SECC of neighbour
inverter
3.8
lateral alignment
relative position in y-direction of the secondary device to the primary device for a given
secondary device ground clearance
3.9
MF-D-WPT system
magnetic field-dynamic wireless power transfer system
system comprising the supply device(s) and the EV device(s) to perform MF-D-WPT

– 12 – IEC PAS 61980-6:2025 © IEC 2025
3.10
supply equipment
off-board equipment comprising the SECC and one or multiple supply devices working under
the control of the same SECC
4 Abbreviated terms
D-EVCC dynamic WPT electric vehicle communication controller
D-SECC dynamic WPT supply equipment communication controller
DWMM dynamic WPT mobility manager
D-WPT dynamic wireless power transfer
EV electric vehicle
EVCC EV communication controller
FOD foreign object detection
ID identification number
LOP living object protection
P2PS point-to-point signalling
SECC supply equipment communication controller
5 General system structure and interoperability concept
5.1 System structure
Figure 1 shows an example for the structure of the components referred to throughout this
document. A communication system consists of two types of communication: wide area
communication that can communicate a lot of information and narrow area communication that
is mainly for pairing, which may be performed via P2PS.
Further configurations can be found in Annex A.

Key Name Key Name
1 MF-D-WPT system
11 primary device 21 secondary device
12 supply power electronics 22 EV power electronics
13 supply power circuit 23 EV power circuit (EVPC)
14 dynamic WPT SECC (D-SECC) 24 dynamic WPT EVCC (D-EVCC)
15 supply device P2PS controller 25 EV device P2PS controller
16 D-WPT management unit (DWMU)
17 supply device 27 EV device
18 switch 200 RESS/motor
100 supply network b uni/bi-directional wireless signalling
a wireless power flow c cellular/DSRC
18x+15x+11x segment
Figure 1 – Example of an MF-D-WPT system
NOTE 1 Communication between the D-SECC and D-EVCC can be direct communication or via cloud.
NOTE 2 More than one EV can be supplied power from one supply device or one primary device.
NOTE 3 An EV can have more than one secondary devices.
NOTE 4 D-SECC can be located either at a local facility or at comprehensive communication centre.
5.2 Interoperability concept
Interoperability of MF-D-WPT requires that both the power transfer mechanism and the
communication can interoperate. The requirements for interoperability of the power transfer in
D-WPT mechanism are given in IEC PAS 61980-5.

– 14 – IEC PAS 61980-6:2025 © IEC 2025
6 General communication requirements
6.1 General
MF-D-WPT systems shall use communication between electric road vehicle (EV) and
infrastructure for the MF-WPT power transfer process.
For MF-D-WPT systems, the physical and data link layer (OSI layers 1 and 2) of the wireless
communication interface (c in Figure 1) shall be in accordance with DSRC or cellular network
(5G or LTE) and so on.
Cloud system with cellular or DSRC shall support mobility function.
The communication of a MF-D-WPT system shall be implemented as per ISO 15118-20. This
includes the requirements for message exchange, communication security and the integrity
safety for the user of the charging possibility on the electric road.
A robust operation of a MF-D-WPT system requires the implementation of different but
interrelated timing requirements.
MF-D-WPT system shall conform to
– communication timing requirements according to ISO 15118-20, and
– timing requirements with respect to specific activities and actions described in Clause 7,
respectively.
MF-D-WPT system shall maintain inherently safe operation without relying solely on the
wireless communications.
A MF-WPT system shall be tested in accordance with ISO 15118-20 and Clause 7 of this
document.
6.2 Communication and signalling for power management
6.2.1 General
Power management consists of two layers:
– wide area management, including the distribution network, is determined from the maximum
amount of power from the grid;
– local management is the distribution of power to each coil.
6.2.2 Bidirectional wireless communication
The communication between D-SECC and D-EVCC is performed by high-speed wireless
communication. Table 1 shows the requirements for the communication interface between one
D-SECC and one D-EVCC.
EXAMPLE DSRC, cellular network (5G or LTE) local 5G.

Table 1 – Requirement for the communication interface between
one SECC and one EVCC
Category Detail
Communication speed > 10 Mbit/s
Data size (bit width) < 256 byte
Communication latency < 100 ms
Communication area XML or EXI format

6.2.3 Unidirectional wireless signalling (P2PS)
The P2PS is used to inform the vehicle ID from the vehicle to the supply device in paring,
alignment check, magnetic coupling check, terminate power transfer and power transfer
terminate activities. Table 2 shows the requirements for the communication interface between
one supply device P2PS controller and one EV
...