ISO 15118-3:2015

INTERNATIONAL ISO
STANDARD 15118-3
First edition
2015-05-15
Road vehicles — Vehicle to grid
communication interface —
Part 3:
Physical and data link layer
requirements
Véhicules routiers — Interface de communication entre véhicule et
réseau électrique —
Partie 3: Exigences relatives à la couche physique et à la couche
liaison de données
Reference number
©
ISO 2015
© ISO 2015, Published in Switzerland
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ii © ISO 2015 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 4
5 Conventions . 5
5.1 Definition of OSI based services . 5
5.2 Requirement structure . 5
5.3 Normative references convention . 5
6 System architecture . 6
6.1 Communication layers overview . 6
6.2 Definition of high-level communication and basic signalling . 7
6.2.1 Basic signalling . 7
6.2.2 High-level communication . 7
6.3 Identification requirements. 8
6.4 System requirements . 8
6.4.1 Overview . 8
6.4.2 EVSE . 8
6.4.3 EV . 9
6.5 Configuration of a low-layer communication module .10
7 Connection coordination .10
7.1 General .10
7.2 Overview .10
7.3 Plug-in phase .17
7.3.1 EVSE side .17
7.3.2 EV side .17
7.4 Initialization phase .17
7.5 Loss of communication .18
7.5.1 EVSE side .18
7.5.2 EV side .18
7.6 Sleep mode and wake-up .19
7.6.1 Entering the sleep mode .19
7.6.2 Wake-up.19
7.6.3 During a charge pause . .20
7.7 Plug-out phase .20
8 Timings and constants.21
9 Matching EV — EVSE process .22
9.1 Overview .22
9.2 Initialization of matching process .24
9.3 Discovery of the connected low-layer communication module.24
9.4 Validation of matching decision .25
9.5 Set-up a logical network .27
9.6 Leave the logical network .27
9.7 Error handling .27
10 EMC requirements .27
11 Signal coupling .27
12 Layer 2 interfaces.28
12.1 Overview .28
12.2 Data SAP .28
12.3 Data link control SAP to layer 3 .28
Annex A (normative) HomePlug Green PHY on control pilot line .30
Annex B (informative) IEEE 1901.2 G3-PLC profile on control pilot line.72
Bibliography .79
iv © ISO 2015 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 31, Data
communication.
ISO 15118 consists of the following parts, under the general title Road vehicles — Vehicle to grid
communication interface:
— Part 1: General information and use-case definition
— Part 2: Network and application protocol requirements
— Part 3: Physical layer and Data Link Layer requirements
The following parts are under preparation:
— Part 4: Network and application protocol conformance test
— Part 5: Physical layer and data link layer conformance test
— Part 6: General information and use-case definition for wireless communication
— Part 7: Network and application protocol requirements for wireless communication
— Part 8: Physical layer and data link layer requirements for wireless communication
Introduction
The pending energy crisis and the necessity to reduce greenhouse gas emissions has led the vehicle
manufacturers to a very significant effort to reduce the energy consumption of their vehicles. They
are presently developing vehicles partly or completly propelled by el
...