IEC TS 61980-2:2019

IEC TS 61980-2 ®
Edition 1.0 2019-06
TECHNICAL
SPECIFICATION
colour
inside
Electric vehicle wireless power transfer (WPT) systems –
Part 2: Specific requirements for communication between electric road vehicle
(EV) and infrastructure
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IEC TS 61980-2 ®
Edition 1.0 2019-06
TECHNICAL
SPECIFICATION
colour
inside
Electric vehicle wireless power transfer (WPT) systems –

Part 2: Specific requirements for communication between electric road vehicle

(EV) and infrastructure
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120 ISBN 978-2-8322-6679-3

– 2 – IEC TS 61980-2:2019  IEC 2019
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
4 Abbreviated terms . 14
5 Communication of WPT systems . 14
5.1 General . 14
5.2 System architecture . 14
5.3 General system requirements . 16
5.3.1 General . 16
5.3.2 Interoperability requirements . 16
5.3.3 System configuration . 16
5.3.4 Communication security . 17
5.3.5 Timing . 17
6 Power transfer process with respect to communication . 17
6.1 General . 17
6.2 Overview of operation process activities . 17
6.3 Activities . 18
6.3.1 Communication setup and service selection . 18
6.3.2 Reject WPT session . 18
6.3.3 Fine positioning . 18
6.3.4 Pairing . 19
6.3.5 Final compatibility check . 19
6.3.6 Initial alignment check . 20
6.3.7 Prepare power transfer . 20
6.3.8 Time scheduled power transfer (informative) . 21
6.3.9 Perform power transfer . 22
6.3.10 Stop power transfer . 23
6.3.11 WPT session . 24
6.3.12 EV leaves WPT spot . 24
6.3.13 Safety monitoring and diagnostics . 24
6.3.14 Terminate communication . 25
6.3.15 Terminate safety monitoring and diagnostics . 25
6.3.16 Wake-up after power outage . 25
7 Control process states . 26
7.1 Supply device state definitions . 26
7.1.1 Supply device state diagram . 26
7.1.2 Stand by (WPT_S_SB) . 27
7.1.3 Service initiated (WPT_S_SI) . 27
7.1.4 WPT session rejected . 28
7.1.5 Awaiting alignment (WPT_S_AA) . 29
7.1.6 Idle (WPT_S_IDLE) . 31
7.1.7 Power transfer (WPT_S_PT) . 32
7.1.8 Service terminated occupied (WPT_S_STO) . 33
7.1.9 Out of service (WPT_S_OOS) . 34

7.1.10 Sleep mode WPT_S_SLP . 34
7.2 Supply device state transitions . 35
7.3 EV device state definitions . 36
7.3.1 EV device state diagram . 36
7.3.2 Stand by (WPT_V_SB) . 37
7.3.3 Service initiated (WPT_V_SI) . 38
7.3.4 Awaiting alignment (WPT_V_AA) . 39
7.3.5 Idle (WPT_V_IDLE) . 40
7.3.6 Power transfer active (WPT_V_PT) . 40
7.3.7 Off (WPT_V_OFF) . 40
7.4 EV state transitions . 40
7.5 Exception handling. 41
7.5.1 General . 41
7.5.2 Supply device exception handling (WPT_S_ERR) . 41
7.5.3 EV device exception handling (WPT_V_ERR) . 41
7.5.4 Exception descriptions . 42
8 Communication parameter for WPT systems . 42
8.1 General . 42
8.2 General parameters . 42
8.3 Communication setup . 42
8.4 Service selection . 43
8.5 Fine positioning . 45
8.5.1 General . 45
8.5.2 Starting fine positioning . 45
8.5.3 Fine positioning data exchange . 45
8.5.4 Terminating fine positioning . 46
8.6 Pairing . 46
8.6.1 General . 46
8.6.2 Start pairing . 46
8.7 Initial alignment check . 47
8.7.1 General . 47
8.7.2 Initial alignment check request/response . 47
8.8 Prepare power transfer . 48
8.8.1 General . 48
8.8.2 Final compatibility check . 48
8.9 Perform power transfer . 49
8.10 Stop power transfer . 50
8.11 Terminate communication . 50
8.12 Exception handling. 50
9 Message sequences of communication with WLAN . 51
9.1 General . 51
9.2 Messages of communication for power transfer . 51
9.3 Communication setup . 51
9.4 Service selection . 51
9.5 Fine positioning . 52
9.6 Pairing . 52
9.7 Final compatibility check . 52
9.8 Initial alignment check . 52
9.9 Prepare power transfer . 53

– 4 – IEC TS
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