Road vehicles - Vehicle-to-grid communication Interface - Part 2: Network and application protocol requirements (ISO 15118-2:2014)

This International Standard specifies the communication between battery electric vehicles (BEV) or plug-in hybrid electric vehicles (PHEV) and the Electric Vehicle Supply Equipment (EVSE, also known as charge spot). It covers the overall information exchange between all actors involved in the electrical energy exchange.
This International Standard is applicable for (manually) connected conductive charging.
The purpose of this Part of ISO/IEC 15118 is to detail the communication between a Plug-in Electric Vehicle (EV, may be a BEV or a PHEV) and an EVSE. Aspects are specified to detect a vehicle in a communication network and enable an Internet Protocol (IP) based communication between EV and EVSE.
This document is based on the use-case requirements from ISO/IEC 15118-1. This part defines messages, data model, XML/EXI based data representation format, usage of V2GTP, TLS, TCP, IPv6 up to the Data Link Layer and Physical Layer interface.
NOTE Extensible Markup Language (XML) Schema is an official and widely adopted World Wide Web Consortium (W3C) standard with comprehensive tool support1).
NOTE Efficient XML Interchange (EXI) is a proposed data format from the Efficient XML Interchange Working Group of the W3C.
NOTE While most parts of the present document support vehicle to grid integration in general some technical
parameter especially focuses on AC charging service. It is expected, that further charging services will be supported by extension of these particular data types in the future e.g. to support DC charging.

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation - Teil 2: Anforderungen an das Netzwerk- und Anwendungsprotokoll (ISO 15118-2:2014)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique - Partie 2: Exigences du protocole d'application et du réseau (ISO 15118-2:2014)

Le présent document spécifie la communication entre les véhicules électriques à batterie (VEB) ou les véhicules électriques hybrides rechargeables (VEHR) et l'infrastructure de recharge pour véhicules électriques. L'ensemble de messages de la couche application défini dans le présent document est conçu pour prendre en charge le transfert d'énergie entre une IRVE et un VE. L'ISO 15118-1 contient des éléments de cas d'utilisation supplémentaires (ID des éléments de cas d'utilisation de la Partie 1 : F4 et F5) décrivant le transfert d'énergie bidirectionnel. L'implémentation de ces cas d'utilisation nécessite des améliorations de l'ensemble de messages de la couche application défini dans le présent document. Les définitions de ces exigences supplémentaires feront l'objet de la prochaine révision du présent document.
Le présent document a pour but de décrire de manière détaillée la communication entre un VE (VEB ou VEHR) et une IRVE. Les aspects spécifiés permettent de détecter un véhicule dans un réseau de communication, et de permettre une communication basée sur le protocole Internet (IP) entre le contrôleur de communication du véhicule électrique (EVCC) et le contrôleur de communication de l'infrastructure de recharge (SECC).
Le présent document définit les messages, le modèle de données, le format de représentation de données basé sur XML/EXI, l'utilisation de V2GTP, TLS, TCP et IPv6. De plus, il décrit comment accéder aux services de la couche liaison de données à partir de la couche 3. La fonctionnalité de la couche liaison de données et de la couche physique est décrite dans l'ISO 15118-3.

Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 2. del: Zahteve za protokol omrežja in uporabe (ISO 15118-2:2014)

Ta mednarodni standard določa komunikacijo med električnimi akumulatorskimi vozili (BEV) ali hibridnimi cestnimi vozili z možnostjo polnjenja prek navadne vtičnice (PHEV) in opremo za polnjenje električnih vozil (EVSE, imenovano tudi polnilnica). Zajema celotno izmenjavo informacij med vsemi stranmi, ki so udeležene pri električnem polnjenju. Ta mednarodni standard se uporablja za (ročno) priključeno kabelsko polnjenje. Namen tega dela standarda ISO/IEC 15118 je podrobno opredeliti komunikacijo med električnim vozilom z možnostjo polnjenja prek navadne vtičnice (EV, lahko je BEV ali PHEV) in EVSE. Podani so vidiki za zaznavanje vozila v komunikacijskem omrežju in omogočanje komunikacije med EV in EVSE na podlagi internetnega protokola (IP). Ta dokument temelji na zahtevah primerov uporabe iz standarda ISO/IEC 15118-1. Ta del opredeljuje sporočila, podatkovni model, format za predstavitev podatkov na podlagi XML/EXI, uporabo protokola V2GTP, TLS, TCP, IPv6 do vmesnika podatkovne povezovalne plasti in fizične plasti. OPOMBA: Shema razširljivega označevalnega jezika (XML) je uradno in splošno sprejet standard Konzorcija za svetovni splet (W3C) z obsežno podporo orodij1). OPOMBA: Učinkovita izmenjava XML (EXI) je podatkovni format, ki ga je predlagala delovna skupina za učinkovito izmenjavo XML Konzorcija W3C. OPOMBA: Večina delov trenutnega dokumenta podpira integracijo vozila z omrežjem na splošno, nekateri tehnični parametri pa se posebej osredotočajo na storitev polnjenja AC. Pričakuje se, da bodo z razširitvijo teh določenih podatkovnih vrst v prihodnje podprte dodatne storitve polnjenja, npr. polnjenje DC.

General Information

Status
Withdrawn
Public Enquiry End Date
29-Oct-2015
Publication Date
16-May-2016
Withdrawal Date
25-May-2022
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
26-May-2022
Due Date
18-Jun-2022
Completion Date
26-May-2022

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SLOVENSKI STANDARD
SIST EN ISO 15118-2:2016
01-junij-2016
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 2. del: Zahteve
za protokol omrežja in uporabe (ISO 15118-2:2014)
Road vehicles - Vehicle-to-grid communication Interface - Part 2: Network and
application protocol requirements (ISO 15118-2:2014)

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -

Teil 2: Anforderungen an das Netzwerk- und Anwendungsprotokoll (ISO 15118-2:2014)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique -

Partie 2: Exigences du protocole d'application et du réseau (ISO 15118-2:2014)
Ta slovenski standard je istoveten z: EN ISO 15118-2:2016
ICS:
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
43.040.15 $YWRPRELOVNDLQIRUPDWLND Car informatics. On board
9JUDMHQLUDþXQDOQLãNLVLVWHPL computer systems
SIST EN ISO 15118-2:2016 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15118-2:2016
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SIST EN ISO 15118-2:2016
EN ISO 15118-2
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2016
EUROPÄISCHE NORM
ICS 43.120
English Version
Road vehicles - Vehicle-to-grid communication Interface -
Part 2: Network and application protocol requirements
(ISO 15118-2:2014)

Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle

véhicule et réseau électrique - Partie 2: Exigences du zwischen Fahrzeug und Ladestation - Teil 2:

protocole d'application et du réseau (ISO 15118- Anforderungen an das Netzwerk- und

2:2014) Anwendungsprotokoll (ISO 15118-2:2014)
This European Standard was approved by CEN on 21 February 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15118-2:2016 E

worldwide for CEN national Members.
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SIST EN ISO 15118-2:2016
EN ISO 15118-2:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 15118-2:2016
EN ISO 15118-2:2016 (E)
European foreword

The text of ISO 15118-2:2014 has been prepared by Technical Committee ISO/TC 22 “Road vehicles” of

the International Organization for Standardization (ISO) and has been taken over as EN

ISO 15118-2:2016 by Technical Committee CEN/TC 301 “Road vehicles” the secretariat of which is held

by AFNOR.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by October 2016, and conflicting national standards shall

be withdrawn at the latest by October 2016.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
Endorsement notice

The text of ISO 15118-2:2014 has been approved by CEN as EN ISO 15118-2:2016 without any

modification.
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SIST EN ISO 15118-2:2016
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SIST EN ISO 15118-2:2016
INTERNATIONAL ISO
STANDARD 15118-2
First edition
2014-04-01
Road vehicles — Vehicle-to-Grid
Communication Interface —
Part 2:
Network and application protocol
requirements
Véhicules routiers — Interface de communication entre véhicule et
réseau électrique —
Partie 2: Exigences du protocole d'application et du réseau
Reference number
ISO 15118-2:2014(E)
ISO 2014
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, 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
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
Contents Page

Foreword ............................................................................................................................................................. v

Introduction ........................................................................................................................................................ vi

1  Scope ...................................................................................................................................................... 1

2  Normative references ............................................................................................................................ 1

3  Terms and definitions ........................................................................................................................... 3

4  Symbols and abbreviated terms .......................................................................................................... 7

5  Conventions ........................................................................................................................................... 8

5.1  Definition of OSI based services ......................................................................................................... 8

5.2  Requirement structure .......................................................................................................................... 8

5.3  Usage of RFC references ...................................................................................................................... 8

5.4  Notation used for XML schema diagrams ........................................................................................... 9

6  Document overview ............................................................................................................................... 9

7  Basic requirements for V2G communication ................................................................................... 11

7.1  General information ............................................................................................................................ 11

7.2  Service primitive concept of OSI layered architecture .................................................................... 11

7.3  Security concept .................................................................................................................................. 12

7.4  V2G communication states and data link handling ......................................................................... 21

7.5  Data Link Layer .................................................................................................................................... 26

7.6  Network Layer ...................................................................................................................................... 26

7.7  Transport Layer ................................................................................................................................... 28

7.8  V2G Transfer Protocol ........................................................................................................................ 32

7.9  Presentation Layer .............................................................................................................................. 36

7.10  Application Layer ................................................................................................................................ 46

8  Application Layer messages .............................................................................................................. 55

8.1  General information and definitions .................................................................................................. 55

8.2  Protocol handshake definition ........................................................................................................... 56

8.3  V2G Message Definition ...................................................................................................................... 60

8.4  V2G Communication Session and BodyElement Definitions ......................................................... 62

8.5  Complex data types ........................................................................................................................... 104

8.6  Identification Modes and Message Set definitions ........................................................................ 137

8.7  V2G communication timing .............................................................................................................. 170

8.8  Message sequencing and error handling ....................................................................................... 184

8.9  Request-Response Message Sequence examples ........................................................................ 206

Annex A (informative) Mapping of Part 1 use case elements .................................................................... 214

Annex B (informative) Mapping of ISO 15118 message element names to SAE J2847/2 terms ............ 250

Annex C (normative) Schema definition ..................................................................................................... 254

Annex D (informative) Message examples ................................................................................................. 278

Annex E (informative) Application of certificates ...................................................................................... 299

Annex F (normative) Certificate profiles ..................................................................................................... 313

Annex G (informative) Encryption for the Distribution of Secret Keys .................................................... 321

Annex H (normative) Specification of Identifiers ....................................................................................... 323

Annex I (informative) Message sequencing for renegotiation .................................................................. 326

Annex J (informative) Overview on XML Signatures ................................................................................. 330

© ISO 2014 – All rights reserved iii
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)

Annex K (informative) Summary of requirements ..................................................................................... 334

Bibliography ................................................................................................................................................... 341

iv © ISO 2014 – All rights reserved
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
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 3, Electrical

and electronic equipment.

ISO 15118-2 was developed in conjunction with IEC TC 69, Electric road vehicles and electric industrial

trucks.

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 and data link layer requirements
To be published.
© ISO 2014 – All rights reserved v
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
Introduction

The pending energy crisis and 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 completely propelled by electric energy. Those vehicles will reduce the

dependency on oil, improve the global energy efficiency and reduce the total CO emissions for road

transportation if the electricity is produced from renewable sources. To charge the batteries of such vehicles,

specific charging infra-structure is required.

Much of the standardization work on dimensional and electrical specifications of the charging infrastructure

and the vehicle interface is already treated in the relevant ISO or IEC groups. However the question of

information transfer between the EV and the EVSE has not been treated sufficiently.

Such communication is necessary for the optimization of energy resources and energy production systems so

that vehicles can recharge in the most economical or most energy efficient way. It is also required to develop

efficient and convenient billing systems in order to cover the resulting micro-payments. The necessary

communication channel may serve in the future to contribute to the stabilization of the electrical grid as well as

to support additional information services required to operate electric vehicles efficiently and economically.

vi © ISO 2014 – All rights reserved
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SIST EN ISO 15118-2:2016
INTERNATIONAL STANDARD ISO 15118-2:2014(E)
Road vehicles — Vehicle-to-Grid Communication Interface —
Part 2: Network and application protocol requirements
1 Scope

This part of ISO 15118 specifies the communication between battery electric vehicles (BEV) or plug-in hybrid

electric vehicles (PHEV) and the Electric Vehicle Supply Equipment. The application layer message set

defined in this part of ISO 15118 is designed to support the energy transfer from an EVSE to an EV. ISO

15118-1 contains additional use case elements (Part 1 Use Case Element IDs: F4 and F5) describing the

bidirectional energy transfer. The implementation of these use cases requires enhancements of the

application layer message set defined herein. The definitions of these additional requirements will be subject

of the next revision of this International Standard.

The purpose of this part of ISO 15118 is to detail the communication between an EV (BEV or a PHEV) and an

EVSE. Aspects are specified to detect a vehicle in a communication network and enable an Internet Protocol

(IP) based communication between EVCC and SECC.
Key
1 Scope of ISO/IEC FDIS 15118-2:2013(E)

2 Message definition considers use cases defined for communication between SECC to SA

Figure 1 — Communication relationship among EVCC, SECC and secondary actor

This part of ISO 15118 defines messages, data model, XML/EXI based data representation format, usage of

V2GTP, TLS, TCP and IPv6. In addition, it describes how data link layer services can be accessed from a

layer 3 perspective. The Data Link Layer and Physical Layer functionality is described in ISO 15118-3.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated references,

the latest edition of the referenced document (including any amendments) applies.

ISO 3166-1, Codes for the representation of names of countries and their subdivisions ― Part 1: Country

codes

ISO 15118-1, Road vehicles ― Vehicle to grid communication interface ― Part 1: General information and

use-case definition

IEC 61851-1, Electric vehicle conductive charging system ― Part 1: General requirements (Ed 2.0 2010)

IEC 61851-22, Electric vehicle conductive charging system - Part 22: AC electric vehicle charging station

IEC CDV 61851-23, Electric vehicle conductive charging system - Part 23: D.C. electric vehicle charging

station (Ed 1.0 2012)

IEC 62196, Plugs, socket-outlets, vehicle connectors and vehicle inlets - Conductive charging of electric

vehicles
© ISO 2014 – All rights reserved 1
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)

W3C EXI 1.0, Efficient XML Interchange (EXI) Format 1.0, W3C Recommendation (March 2011)

W3C XML Signature Syntax and Processing Version 1.1, - W3C Recommendation (April 2013)

IETF RFC 768, User Datagram Protocol (August 1980)

IETF RFC 793, Transmission Control Protocol - DARPA Internet Program - Protocol Specification (September

1981)
IETF RFC 1981, Path MTU Discovery for IP version 6 (August 1996)
IETF RFC 2460, Internet Protocol, Version 6 (IPv6) Specification (December 1998)

IETF RFC 6960, X.509 Internet Public Key Infrastructure Online Certificate Status Protocol - OCSP (June

2013)

IETF RFC 3122, Extensions to IPv6 Neighbor Discovery for Inverse Discovery Specification (June 2001)

IETF RFC 3315, Dynamic Host Configuration Protocol for IPv6 (DHCPv6) (July 2003)

IETF RFC 3484, Default Address Selection for Internet Protocol version 6 (IPv6) (February 2003)

IETF RFC 6582, The NewReno Modification to TCP's Fast Recovery Algorithm (April 2012)

IETF RFC 4291, IP Version 6 Addressing Architecture (February 2006)

IETF RFC 4429, Optimistic Duplicate Address Detection (DAD) for IPv6 (April 2006)

IETF RFC 4443, Internet Control Message Protocol (ICMP v6) for the Internet Protocol version 6 (IPv6)

specification (March 2006)
IETF RFC 4861, Neighbor Discovery for IP version 6 (IPv6) (September 2007)
IETF RFC 4862, IPv6 Stateless Address Autoconfiguration (September 2007)
IETF RFC 5095, Deprecation of Type 0 Routing Headers in IPv6 (December 2007)

IETF RFC 5116, An Interface and Algorithms for Authenticated Encryption (January 2008)

IETF RFC 5234, Augmented BNF for Syntax Specifications: ABNF (January 2008)

IETF RFC 5246, The Transport Layer Security (TLS) Protocol Version 1.2 (August 2008)

IETF RFC 5280, Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL)

Profile (May 2008)

IETF RFC 5289, TLS Elliptic Curve Cipher Suites with SHA-256/384 and AES Galois Counter Mode (GCM)

(August 2008)

IETF RFC 5480, Elliptic Curve Cryptography Subject Public Key Information (March 2009)

IETF RFC 5722, Handling of Overlapping IPv6 Fragments (December 2009)

IETF RFC 6066, Transport Layer Security (TLS) Extensions: Extension Definitions (January 2011)

IETF RFC 6106, IPv6 Router Advertisement Options for DNS Configuration (November 2010)

IETF RFC 6961, The Transport Layer Security (TLS) Multiple Certificate Status Request Extension (June

2013)
2 © ISO 2014 – All rights reserved
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)

IANA Service&PortRegistry, Service Name and Transport Protocol Port Number Registry [viewed 2011-01-

16], Available from: http://www.iana.org/assignments/service-names-port-numbers/service-names-port-

numbers.xml
NIST FIPS PUB 180-4: Secure Hash Standard (SHS) (March 2012)

NIST Special Publication 800-56A: Recommendation for Pair-Wise Key Establishment Schemes Using

Discrete Logarithm Cryptography (Revised) (March 2007)

NIST Special Publication 800-38A: Recommendation for Block Cipher Modes of Operation - Methods and

Techniques (2001)
3 Terms and definitions

For the purposes of this document, the terms in ISO 15118-1 and the following apply.

3.1
Basic Charging
charging phase during a charging session controlled by IEC 61851-1 only
3.2
charging limits

set of physical constraints (e.g. voltage, current, energy, power) that is negotiated during a V2G

Communication Session for a charging session
3.3
Communication Setup Timer
Timer monitoring the time from plug-in until the Session Setup message
3.4
Contract Certificate

certificate issued to EVCC either by V2G Root CA or by Sub-CA, which is used in XML Signatures in

application layer so that SECC or secondary actor can verify the Contract issued to the EVCC and signatures

issued by the EVCC
3.5
CP State

Control Pilot (Vehicle) State according to IEC 61851-1 signalled on Control Pilot Line

3.6
credentials
anything that provides the basis for confidence, belief, credit, etc.
EXAMPLE Examples include certificates, passwords, user names etc.
3.7
Data Link Setup
setup phase for establishing the data link

Note 1 to entry: Entry Condition: Any valid control pilot signal according to IEC 61851-1; Exit Condition: D-

LINK_READY.indication(DLINKSTATUS=LinkEstablished).
3.8
Distinguished Encoding Rules = ASN-1 encoding rule
DER

method for encoding a data object, such as an X.509 certificate, to be digitally signed or to have its signature

verified
© ISO 2014 – All rights reserved 3
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
3.9
global address
IP address with unlimited scope
3.10
High Level Communication Charging
HLC-C
charging phase during a charging session controlled by ISO 15118
3.11
link-local address

IP address with link-only scope that can be used to reach neighbouring interfaces attached to the same link

3.12
Identification Mode

mandatory and optional messages and parameters with respect to charging scenarios using External

Identification Means (EIM) and charging scenarios using Plug and Charge (PnC) for identification

Note 1 to entry: An Identification Mode covers a set of similar charging scenarios for a specific identification means.

3.13
(IP) address
IP-layer identifier for an interface or a set of interfaces
3.14
Maximum Transfer Unit
MTU

maximum size (in bytes) of the largest protocol data unit that the Data Link Layer that can be pass onwards

3.15
Message Set

set of mandatory V2G messages and parameters for the EVCC or SECC covering one or multiple use case

elements
3.16
Message Timer
Timer monitoring the exchange of a Request-Response-Pair
3.17
network segment

collection of devices that can exchange data on Data Link Layer level directly via Data Link Addresses

EXAMPLE Ethernet: all devices which can see each other via MAC addresses.
3.18
node
device that implements IPv6
3.19
OEM Provisioning Certificate

certificate issued to the EVCC, so that a Contract Certificate can be securely requested and received from a

secondary actor
3.20
Performance Time

non-functional timing requirement defining the time a V2G Entity shall not exceed when executing or

processing certain functionality
Note 1 to entry: This is a fixed time value.
4 © ISO 2014 – All rights reserved
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
3.21
private environment

area with (physical) access limited to a small number of vehicles (EVs), which may be a private parking

garage or a garage / parking lot of a company with its own EV fleet, where one or several private wall-box(es)

are used instead of public charging stations as EVSE, and where in order to keep the private wall-box simple

and cheap in production and operation it is allowed to stay offline permanently, which allows a private wall-box

to use leaf certificates with a longer maximum validity than allowed for public charging stations and using a

private root certificate which is different to the V2G root certificates and which has to be installed into each EV

that is allowed to charge within this specific private environment, resulting in a limited number of EVs

belonging to one private environment, the difference to a “trusted environment” being that in a (pure; i.e. not

additionally “trusted”) private environment TLS and the corresponding data encryption at connection level is

always used, and solely certificate handling is simplified for the private wall-box (EVSE) since it may stay

offline permanently, resulting in unrestricted certificate validity periods, shorter certificate chain length, omitting

OCSP, and an additional “pairing mode”
3.22
Identification Mode

group of mandatory and optional Message Sets covering a set of similar charging scenarios for a specific

identification means
3.23
renegotiation

messaging for updating the agreement on the charging schedule between EV and EVSE during a V2G

Communication Session by retransmitting the parameters SASchedule and ChargingProfile

3.24
Request-Response Message Pair
request message and the corresponding response message
3.25
Request-Response Message Sequence
predefined sequence of Request-Response Message Pairs
3.26
SDP Client

V2G Entity that uses the SDP server to get configuration information about the SECC to be able to access the

SECC
3.27
SDP Server
V2G Entity providing configuration information for accessing the SECC
3.28
SECC Certificate

certificate issued to SECC either by V2G Root CA or by Sub-CA, which is used in TLS so that the EVCC can

verify the authenticity of the SECC
3.29
Sequence Timer
Timer monitoring a Request-Response Message Sequence
3.30
Sub-CA

subordinate certificate authority who issues SECC Certificates and/or Contract Certificates on behalf of the

V2G Root CA

Note 1 to entry: The ability of issuing the certificates are delegated from V2G Root CA, and V2G Root CA can revoke the

Sub-CA at any time.
© ISO 2014 – All rights reserved 5
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SIST EN ISO 15118-2:2016
ISO 15118-2:2014(E)
3.31
Sub-CA Certificate
certificate issued to Sub-CA
3.32
TCP_DATA
socket/interface for data transfer based on TCP connection
3.33
Timeout

timing requirement defining the time a V2G Entity monitors the communication system for a certain event to

occur
Note 1
...

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