ISO 15118-1:2019

Road vehicles - Vehicle to grid communication interface - Part 1: General information and use case definition

ISO 15118-1:2019 This document, as a basis for the other parts of the ISO 15118 series, specifies terms and definitions, general requirements and use cases for conductive and wireless HLC between the EVCC and the SECC.
This document is applicable to HLC involved in conductive and wireless power transfer technologies in the context of manual or automatic connection devices.
This document is also applicable to energy transfer either from EV supply equipment to charge the EV battery or from EV battery to EV supply equipment in order to supply energy to home, to loads or to the grid.
This document provides a general overview and a common understanding of aspects influencing identification, association, charge or discharge control and optimisation, payment, load levelling, cybersecurity and privacy. It offers an interoperable EV-EV supply equipment interface to all e-mobility actors beyond SECC.
The ISO 15118 series does not specify the vehicle internal communication between battery and other internal equipment (beside some dedicated message elements related to the energy transfer).
NOTE 1 Electric road vehicles specifically are vehicles in categories M (used for carriage of passengers) and N (used for carriage of goods) (compare ECE/TR ANS/WP.29/78 ev.2). This does not prevent vehicles in other categories from adopting the ISO 15118 series as well.
NOTE 2 This document is destined to orientate the message set of ISO 15118‑2 and ISO 15118‑20[1]. The absence of any particular use case in this document does not imply that it will not be put into practice, with the required messages.
NOTE 3 This document, ISO 15118‑2 and ISO 15118‑20 are designed to work independent of data transfer medium used. However, the ISO 15118 series is made for fitting the specified data link layers in the corresponding documents in this series.
[1] Under preparation. Stage at the time on publication: ISO/DIS 15118-20:2019.

General Information

• Status: Published
• Publication Date: 01-Apr-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 31.060 - Capacitors
• 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: JWG 1 - TC 69/JWG 1
• Current Stage: PPUB - Publication issued
• Start Date: 05-Jun-2019
• Completion Date: 02-Apr-2019

Relations

• Revises: ISO 15118-1:2013 - Road vehicles -- Vehicle to grid communication interface -- Part 1: General information and use-case definition
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15118-1
Second edition
2019-04
Road vehicles — Vehicle to grid
communication interface —
Part 1:
General information and use-case
definition
Véhicules routiers — Interface de communication entre véhicule et
réseau électrique —
Partie 1: Informations générales et définition de cas d'utilisation
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
3.1 General terms . 2
3.2 Control modes .13
3.3 Architecture channel .13
3.4 Forward and reverse power transfer .13
3.5 Minimum and maximum energy request limits .13
3.6 Source generator modes .14
4 Abbreviated terms .14
5 Requirements .15
5.1 List of requirements .15
5.2 General communication requirements .15
5.3 User-specific requirements .16
5.3.1 Reliability, availability, error handling and error reporting .16
5.3.2 Private data protection .17
5.3.3 Ease of use .17
5.4 OEM-specific requirements.17
5.5 Utility-specific requirements .18
5.5.1 Power limiting for grid control or local energy control .18
5.5.2 Current and voltage limits for EV supply equipment protection .19
5.5.3 Current and voltage limits for EV protection .19
5.5.4 Authorization of charging services .19
5.5.5 Authorization of energy transfer from the EV to the EV supply equipment .20
5.5.6 Retrofitting .20
5.6 Wireless communication requirements .20
5.6.1 General.20
5.6.2 Communication infrastructure requirements .20
5.7 RPT description .21
5.7.1 General.21
5.7.2 General information and requirements .22
5.8 Traceability requirements .22
6 Actors.23
7 Use case elements.24
7.1 General .24
7.2 Task groups .25
7.3 Task groups description .26
7.3.1 Start of communication process [A].26
7.3.2 Plug-in and forced HLC .28
7.3.3 WA1: discovery with reservation .29
7.3.4 Plug-in with concurrent IEC 61851-1 and HLC .29
7.3.5 WA2: discovery without reservation .30
7.4 Communication set-up [B] .31
7.4.1 EVCC/SECC conductive communication set-up .31
7.4.2 WB1: EVCC/SECC wireless communication set-up .32
7.5 Certificate handling [C] .32
7.5.1 Certificate update .32
7.5.2 Certificate installation .33
7.6 Identification and authorization [D] .35
7.6.1 Overview .35
7.6.2 Authorization using contract certificates performed at the EV supply
equipment . . .36
7.6.3 Authorization using contract certificates performed with the help of an SA .37
7.6.4 Authorization at the EV supply equipment using external credentials
performed at the EV supply equipment .39
7.6.5 Authorization at the EV supply equipment using external credentials
performed with the help of an SA .40
7.6.6 WD1: Authentication with prior reservation .41
7.7 Pairing and fine positioning.42
7.7.1 WP1: WPT fine positioning .42
7.7.2 WP2: WPT fine positioning without communication support .42
7.7.3 WP3: Conductive energy transfer pairing .43
7.7.4 WP4: WPT pairing .44
7.8 Target setting and energy transfer scheduling [E] .45
7.8.1 AC charging with load levelling based on HLC .45
7.8.2 WE1: WPT target setting and charge scheduling .46
7.8.3 Optimized charging with scheduling from secondary actors .46
7.8.4 DC charging with load levelling based on HLC . .48
7.8.5 Resume to authorized charging schedule .49
7.8.6 Reverse power transfer with load levelling based on HLC .50
7.8.7 Reverse power transfer on stand-alone operation .51
7.8.8 Fast responding energy transfer services based on dynamic control mode .52
7.8.9 Managed bidirectional power transfer into the grid and/or into the home .54
7.9 Energy transfer controlling and re-scheduling [F] .56
7.9.1 Energy transfer loop .56
7.9.2 Energy transfer loop with metering information exchange .57
7.9.3 WF1: WPT charging loop .58
7.9.4 Energy transfer loop with interrupt from the SECC .59
7.9.5 Energy transfer loop with interrupt from the EVCC or USER .59
7.9.6 Energy transfer control based on dynamic control mode .60
7.10 Value-added services [G] .62
7.10.1 Value-added services.6
...