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BS EN IEC 61980-2:2023

BS EN IEC 61980-2:2023

$215.11

Electric vehicle wireless power transfer (WPT) systems – Specific requirements for MF-WPT system communication and activities

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BSI 2023 100
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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

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PDF Pages PDF Title
2 undefined
5 Annex A (normative)Normative references to international publicationswith their corresponding European publications
6 English
CONTENTS
11 FOREWORD
13 INTRODUCTION
14 1 Scope
2 Normative references
15 3 Terms and definitions
18 4 Abbreviated terms
5 General system structure and interoperability concept
5.1 System structure
19 5.2 Interoperability concept
6 General communication requirements
Figures
Figure 1 ā€“ Example of system structure
20 7 Communication procedure during an MF-WPT session
7.1 General
21 Figure 2 ā€“ Chain of activities
22 7.2 Activities
7.2.1 Communication setup
7.2.2 Fine positioning
24 Figure 3 ā€“ Natural offset with different coil geometries
25 Tables
Table 1 ā€“ Fine positioning setup data from EV
26 Table 2 ā€“ Fine positioning setup data from SECC
27 7.2.3 Pairing
Table 3 ā€“ Data transfer during positioning
28 Table 4 ā€“ Pairing parameters provided by the EVCC to the SECC
Table 5 ā€“ Pairing parameters provided by the SECC to the EVCC
29 Figure 4 ā€“ Sequence of parameter exchange for pairing using LPE
30 Figure 5 ā€“ Sequence of parameter exchange for pairingusing LF signal emitted by the EV/EV device
31 Figure 6 ā€“ Sequence of parameter exchange for pairingusing LF signal emitted by the primary device
32 Figure 7 ā€“ Sequence of parameter exchange for pairingusing active optical means (e.g., LED)
33 7.2.4 Authorization and service selection
Figure 8 ā€“ Sequence of parameter exchange for pairing usingpassive optical means (e.g., marker at primary device)
Figure 9 ā€“ Sequence of parameter exchange for pairing using external confirmation
34 7.2.5 Final compatibility check
35 7.2.6 Alignment check
Table 6 ā€“ Final compatibility parameters from EV
Table 7 ā€“ Final compatibility check parameters from SECC
37 7.2.7 Prepare power transfer
Table 8 ā€“ Alignment check parameter sent by the EVCC
Table 9 ā€“ Alignment check response parameters sent by the SECC
38 7.2.8 Perform power transfer
39 Figure 10 ā€“ MF-WPT control system
Table 10 ā€“ Symbols for MF-WPT control system
40 Table 11 ā€“ MF-WPT controller inputs and outputs
Table 12 ā€“ Relative response time for control loops
41 Table 13 ā€“ Perform power transfer request parameters
42 7.2.9 Stop power transfer
Table 14 ā€“ Perform power transfer response parameters
43 7.2.10 Terminate communication
7.2.11 WPT spot vacancy detection
44 7.2.12 Time scheduled power transfer
45 7.2.13 Safety monitoring and diagnostics
47 7.2.14 Wake-up after power outage
7.3 Exception handling
7.3.1 General
Figure 11 ā€“ Classification of system events
48 7.3.2 Exception descriptions
Table 15 ā€“ Exception handling
49 7.3.3 Supply device exception handling (WPT_S_ERR)
50 7.3.4 EV device exception handling (WPT_V_ERR)
Table 16 ā€“ Error respond parameters
Table 17 ā€“ Error request parameters
51 Annex A (informative)Use cases
A.1 General
Figure A.1 ā€“ Use cases specific to wireless power transfer
52 A.2 Use case descriptions
A.2.1 UC select supply device
A.2.2 UC compatibility check
Table A.1 ā€“ UC select supply device
53 A.2.3 UC fine positioning
Table A.2 ā€“ UC compatibility check
54 A.2.4 UC prepare power transfer
Table A.3 ā€“ UC fine positioning
55 A.2.5 UC safety monitoring and diagnostics
Table A.4 ā€“ UC prepare power transfer
56 A.2.6 UC perform power transfer
A.2.7 UC stop power transfer
Table A.5 ā€“ UC safety monitoring and diagnostics
Table A.6 ā€“ UC perform power transfer
57 A.2.8 UC sleep mode (optional)
Table A.7 ā€“ UC stop power transfer
58 Table A.8 ā€“ UC sleep mode
59 Annex B (informative)Physical definition of links and signals
B.1 General
B.2 System architecture
B.3 WLAN
B.4 LF signal
60 Figure B.1 ā€“ Example arrangement of the auxiliary LF receivers/transmittersfor the primary device and the vehicle
61 B.5 LPE
Figure B.2 ā€“ Example arrangement of the auxiliary LF transmitters/receiversfor the primary device and the EV
62 B.6 Power check
B.7 External confirmation means
63 Annex C (informative)Methods of P2PS signaling
C.1 General
C.2 Fine positioning
C.2.1 General
C.2.2 Manual
C.2.3 LF positioning emitted by EV
64 Figure C.1 ā€“ Example OOK data modulation
Figure C.2 ā€“ Generalized Manchester encoding
65 Figure C.3 ā€“ Example LF signal data format for fine positioning
66 C.2.4 LF positioning emitted by supply device
67 C.2.5 LF parameter exchange
Table C.1 ā€“ Additional LF fine positioning setup parameter from EV
68 Table C.2 ā€“ Additional LF fine positioning setup data from SECC
69 Figure C.4 ā€“ Example Explanation of parameters for LF fine positioning
70 C.2.6 Low power excitation (LPE)
Table C.3 ā€“ Additional LF positioning data exchange
71 C.3 Pairing
C.3.1 General
C.3.2 Coding pattern specification
Figure C.5 ā€“ Coding pattern timing and examples
72 C.3.3 Low power excitation (LPE)
C.3.4 LF signal
Figure C.6 ā€“ Example LF signal data format for pairing
73 C.3.5 External confirmation
74 C.4 Alignment check
C.4.1 General
C.4.2 Power check
75 C.4.3 LPE
76 Annex D (normative)State diagrams of WPT process
D.1 General
D.2 Supply device state definitions
D.2.1 Supply device state diagram
D.2.2 System On (WPT_S_ON)
Figure D.1 ā€“ Supply device state diagram
77 D.2.3 Session initiated (WPT_S_SI)
D.2.4 Awaiting alignment (WPT_S_AA)
D.2.5 Idle (WPT_S_IDLE)
D.2.6 Power transfer active (WPT_S_PTA)
D.2.7 Power transfer (WPT_S_PT)
D.2.8 Service terminated occupied (WPT_S_STO)
78 D.2.9 System Off (WPT_S_OFF)
D.2.10 Sleep (WPT_S_SLP)
D.2.11 StandBy (WPT_S_STBY)
D.3 Supply device state transitions
D.3.1 General
Table D.1 ā€“ Supply device state transitions
80 D.3.2 TS_03 and TS_10
D.3.3 TS_04 and TS_05
Figure D.2 ā€“ Transition TS_03 and TS_10
Figure D.3 ā€“ Transition TS_04 and TS_05
81 D.3.4 TS_06
D.3.5 TS_07. TS_09 and TS_12
Figure D.4 ā€“ Transition TS_06
82 D.3.6 TS_08, TS_14 and TS_16
Figure D.5 ā€“ Transition TS_07, TS_09, TS_12
83 D.3.7 TS_13
Figure D.6 ā€“ Transition TS_08, TS_14, TS_16
Figure D.7 ā€“ Transition TS_13
84 D.3.8 TS_11
D.3.9 TS_15
Figure D.8 ā€“ Transition TS_11
85 D.3.10 TS_17
Figure D.9 ā€“ Transition TS_15
86 D.4 EV device state definitions
D.4.1 EV device state diagram
D.4.2 System On (WPT_V_ON)
D.4.3 Session initiated (WPT_V_SI)
Figure D.10 ā€“ Transition TS_17
Figure D.11 ā€“ EV device state diagram
87 D.4.4 Awaiting alignment (WPT_V_AA)
D.4.5 Idle (WPT_V_IDLE)
D.4.6 Power transfer active (WPT_V_PTA)
D.4.7 Power transfer (WPT_V_PT)
D.4.8 Sleep (WPT_V_SLP)
D.4.9 Standby (WPT_V_STBY)
D.4.10 System Off (WPT_V_OFF)
D.5 EV state transitions
D.5.1 General
Table D.2 ā€“ EV device state transitions
88 D.5.2 TV_03
89 D.5.3 TV_05
D.5.4 TV_06
Figure D.12 ā€“ Transition TV_03
Figure D.13 ā€“ Transition TV_05
90 D.5.5 TV_07 and TV_15
Figure D.14 ā€“ Transition TV_06
91 D.5.6 TV_08, TV_14 and TV_16
Figure D.15 ā€“ Transition TV_07, TV_15
92 D.5.7 TV_04 and TV_09
Figure D.16 ā€“ Transition TV_08, TV_14, TV_16
Figure D.17 ā€“ Transition TV_04 and TV_09
93 D.5.8 TV_10
D.5.9 TV_11
Figure D.18 ā€“ Transition TV_10
94 D.5.10 TV_17
Figure D.19 ā€“ Transition TV_11
Figure D.20 ā€“ Transition TV_17
95 Annex E (informative)Marking of primary device
E.1 General
96 E.2 Requirements for detectability
E.3 Usage for positioning ā€“ Parameter setting and message exchange
Figure E.1 ā€“ Example for a marking for a primary device
97 E.4 Usage for pairing
E.4.1 General
E.4.2 Parameter setting and message exchange
98 Bibliography

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BS EN IEC 61980-2:2023
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