BS EN IEC 61980-2:2023
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Electric vehicle wireless power transfer (WPT) systems – Specific requirements for MF-WPT system communication and activities
Published By | Publication Date | Number of Pages |
BSI | 2023 | 100 |
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
PDF Catalog
PDF Pages | PDF Title |
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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 |