EN ISO 15118-4:2019

Road vehicles - Vehicle to grid communication interface - Part 4: Network and application protocol conformance test (ISO 15118-4:2018)

ISO 15118-4:2018 specifies conformance tests in the form of an Abstract Test Suite (ATS) for a System Under Test (SUT) implementing an EVCC or SECC according to ISO 15118-2. These conformance tests specify the testing of capabilities and behaviors of an SUT as well as checking what is observed against the conformance requirements specified in ISO 15118-2 and against what the supplier states the SUT implementation's capabilities are.
The capability tests within the ATS check that the observable capabilities of the SUT are in accordance with the static conformance requirements defined in ISO 15118-2. The behavior tests of the ATS examine an implementation as thoroughly as is practical over the full range of dynamic conformance requirements defined in ISO 15118-2 and within the capabilities of the SUT (see NOTE).
A test architecture is described in correspondence to the ATS. The conformance test cases in this document are described leveraging this test architecture and are specified in TTCN-3 Core Language for ISO/OSI Network Layer (Layer 3) and above. The conformance test cases for the Data Link Layer (Layer 2) and Physical Layer (Layer 1) are described in ISO 15118-5. Test cases with overlapping scopes are explicitly detailed.
This document does not include specific tests of other standards referenced within ISO 15118-2, e.g. IETF RFCs. Furthermore, the conformance tests specified in this document do not include the assessment of performance nor robustness or reliability of an implementation. They cannot provide judgments on the physical realization of abstract service primitives, how a system is implemented, how it provides any requested service, nor the environment of the protocol implementation. Furthermore, the test cases defined in this document only consider the communication protocol defined ISO 15118-2. Power flow between the EVSE and the EV is not considered.
NOTE 1    Practical limitations make it impossible to define an exhaustive test suite, and economic considerations can restrict testing even further. Hence, the purpose of this document is to increase the probability that different implementations are able to interwork. This is achieved by verifying them by means of a protocol test suite, thereby increasing the confidence that each implementation conforms to the protocol specification. However, the specified protocol test suite cannot guarantee conformance to the specification since it detects errors rather than their absence. Thus conformance to a test suite alone cannot guarantee interworking. What it does do is give confidence that an implementation has the required capabilities and that its behavior conforms consistently in representative instances of communication.
NOTE 2    This document has some interdependencies to the conformance tests defined in ISO 15118-5 which result from ISO/OSI cross layer dependencies in the underlying protocol specification (e.g. for sleep mode)

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation - Teil 4: Konformitätsprüfungen für das Netzwerk- und Anwendungsprotokoll (ISO 15118-4:2018)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique - Partie 4: Essai de conformité du protocole d'application et du réseau (ISO 15118-4:2018)

Le présent document spécifie des tests de conformité sous la forme d'une suite de tests abstraits (ATS) pour un système à tester (SUT) implémentant un EVCC ou un SECC conformément à la norme ISO 15118-2. Ces tests de conformité spécifient le contrôle des capacités et des comportements d'un SUT ainsi que la vérification de ce qui est observé en comparaison des exigences de conformité spécifiées dans la norme ISO 15118-2 et en comparaison des capacités de l'implémentation du SUT formulées par le fournisseur.
Les tests de capacités compris dans l'ATS vérifient que les capacités observables du SUT sont conformes aux exigences de conformité statiques définies dans la norme ISO 15118-2. Les tests de comportement de l'ATS examinent une implémentation de la manière la plus approfondie possible sur l'ensemble de l'éventail des exigences de conformité dynamiques définies dans la norme ISO 15118-2 et dans les limites des capacités du SUT (voir NOTE).
Une architecture de test est décrite en rapport avec l'ATS. Dans le présent document, les cas de test de conformité sont décrits en s'appuyant sur cette architecture de test et sont spécifiés en langage noyau TTCN-3 pour la couche réseau (Couche 3) ISO/OSI et supérieures. Les cas de test de conformité pour la couche liaison de données (Couche 2) et la couche physique (Couche 1) sont décrits dans la norme ISO 15118-5. Des cas de test dont les domaines d'application se recoupent sont détaillés de manière explicite.
Le présent document n'inclut pas les tests spécifiques d'autres normes données en référence dans la norme ISO 15118-2, par ex., les RFC de l'IETF. En outre, les tests de conformité spécifiés dans le présent document n'incluent pas l'évaluation du rendement, de la robustesse ou encore de la fiabilité d'une implémentation. Ils ne peuvent servir à la formulation de jugements sur la réalisation physique de primitives de service abstraites, sur la manière dont un système est implémenté, sur la manière dont il fournit un quelconque service requis, ou sur l'environnement de l'implémentation du protocole. En outre, les cas de test définis dans le présent document prennent uniquement en considération le protocole de communication défini dans la norme ISO 15118-2. Le flux d'énergie entre l'EVSE et l'EV n'est pas pris en compte.
NOTE 1    Les limitations pratiques empêchent la définition d'une suite de tests exhaustive, et des considérations économiques peuvent restreindre le test encore davantage. Par conséquent, le présent document a pour but d'accroître la probabilité d'interopérabilité de différentes implémentations. Cela est réalisé en les vérifiant au moyen d'une suite de tests de protocole qui permet ainsi d'augmenter la certitude selon laquelle chaque implémentation est conforme à la spécification du protocole. Cependant, la suite de tests de protocole spécifiée ne peut garantir une conformité à la spécification étant donné qu'elle détecte les erreurs plutôt que leur absence. Par conséquent, la conformité d'une suite de tests ne peut garantir à elle seule une interopérabilité. En revanche, cela apporte la garantie qu'une implémentation présente les capacités requises et que son comportement est systématiquement conforme dans des instances représentatives de communication.
NOTE 2    Le présent document présente certaines interdépendances avec les tests de conformité définis dans la norme ISO 15118-5 qui découlent de dépendances inter-couches ISO/OSI dans la spécification du protocole sous-jacent

Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 4. del: Preskus skladnosti omrežja in aplikacijskega protokola (ISO 15118-4:2018)

Standard ISO 15118-4:2018 določa preskuse skladnosti v obliki niza abstraktnih preskusov (ATS) za sistem za preskušanje (SUT), ki uporablja komunikacijski krmilnik električnega vozila (EVCC) ali komunikacijski krmilnik opreme za napajanje (SECC) v skladu s standardom ISO 15118-2. Ti preskusi skladnosti določajo preskušanje zmogljivosti in delovanja sistema za preskušanje, pa tudi preverjanje ugotovitev s primerjavo z zahtevami glede skladnosti, določenimi v standardu ISO 15118-2, ter z navedbami dobavitelja glede zmogljivosti izvajanja sistema za preskušanje.
Preskusi zmogljivosti znotraj niza abstraktnih preskusov preverjajo, ali so opazne zmogljivosti sistema za preskušanje skladne z zahtevami glede statične skladnosti, določenimi v standardu ISO 15118-2. Preskusi delovanja znotraj niza abstraktnih preskusov preverjajo izvajanje tako temeljito, kot je praktično mogoče, na podlagi polnega razpona zahtev glede dinamične skladnosti, določenih v standardu ISO 15118-2, in znotraj zmogljivosti sistema za preskušanje (glej OPOMBO).
Testna arhitektura je opisana ob upoštevanju sistema za preskušanje. Primeri preskusov skladnosti v tem dokumentu so opisani na podlagi te testne arhitekture in so podani v jedrnem jeziku TTCN-3 za omrežno plast ISO/OSI (plast 3) in višjo. Primeri preskusov skladnosti za podatkovno povezovalno plast (plast 2) in fizično plast (plast 1) so opisani v standardu ISO 15118-5. Preskusni primeri s prekrivajočimi se področji so izrecno opisani.
Ta dokument ne zajema posebnih preskusov iz drugih standardov, na katere se sklicuje znotraj standarda ISO 15118-2, npr. IETF RFC. Poleg tega preskusi skladnosti, opisani v tem dokumentu, ne zajemajo ocenjevanja učinkovitosti niti robustnosti ali zanesljivosti implementacije. Ne morejo zagotoviti presoje glede fizične realizacije primitivov abstraktnih storitev, kako je sistem implementiran, kako zagotavlja katero koli zahtevano storitev, niti glede okolja implementacije protokola. Poleg tega primeri preskusov, opredeljeni v tem dokumentu, upoštevajo samo komunikacijski protokol, določen v standardu ISO 15118-2. Pretok energije med opremo za napajanje električnega vozila in električnim vozilom ni upoštevan.
OPOMBA 1: Zaradi praktičnih omejitev je nemogoče definirati izčrpen niz preskusov, še dodatno pa lahko preskušanje omejijo ekonomski dejavniki. Tako je namen tega dokumenta povečati verjetnost za medsebojno delovanje različnih implementacij. To se doseže tako, da se te implementacije preverijo s sredstvi niza preskusov protokola, s čimer se poveča verjetnost, da je posamezna implementacija skladna s specifikacijo protokola. Vendar pa podani niz preskusov protokola ne more zajamčiti skladnosti s specifikacijo, saj zaznava napake in ne odsotnosti implementacij. Tako skladnost z nizom preskusov sama po sebi ne more zajamčiti medsebojnega delovanja. Na ta način se samo prepriča, da implementacija vključuje zahtevane zmogljivosti in da pri reprezentativnih primerih komunikacije deluje dosledno skladno.
OPOMBA 2: Ta dokument v določeni meri zajema medsebojno odvisnost s preskusi skladnosti, definiranimi v standardu ISO 15118-5, ki izhajajo iz medslojnih odvisnosti ISO/OSI v specifikaciji osnovnega protokola (npr. za način spanja).

General Information

• Status: Published
• Publication Date: 12-Feb-2019
• Withdrawal Date: 30-Aug-2019
• ICS: 43.040.15 - Car informatics. On board computer systems
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CEN/TC 301 - Electrically propelled road vehicles
• Drafting Committee: CEN/TC 301 - Electrically propelled road vehicles
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 13-Feb-2019
• Completion Date: 13-Feb-2019
• Directive: 2014/94/EU - Directive 2014/94/EU of The European Parliament and of The Council of 22 October 2014 on the deployment of alternative fuels infrastructure
• Directive: 2023/1804 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Directive: 2023/1804-1 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Directive: 2023/1804-2 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Mandate: M/468 - Standardisation mandate addressed to CEN and CENELEC and ETSI concerning the charging of electric vehicles
• Mandate: M/533 - [C(2015)1330] Standardisation request addressed to CEN, CENELEC and ETSI in support of the implementation of the Directive 2014/94/EU on the deployment of alternative fuels infrastructure
• Mandate: M/581 - Standardisation Request as regards communication exchange, electricity, and hydrogen supply for road, maritime transport and inland navigation in support of Directive 2014/94/EU and its planned revision under the ‘Fit for 55’package
• Ref Project: SIST EN ISO 15118-4:2019 - Road vehicles - Vehicle to grid communication interface - Part 4: Network and application protocol conformance test (ISO 15118-4:2018)

Relations

• Revised: prEN ISO 15118-4 - Road vehicles - Vehicle to grid communication interface - Part 4: Network and application protocol conformance test (ISO/DIS 15118-4:2024)
• Effective Date: 10-Jan-2024

Overview

EN ISO 15118-4:2019 (ISO 15118-4:2018) specifies a protocol conformance test framework for the vehicle-to-grid (V2G) communication interface. It defines an Abstract Test Suite (ATS) used to verify implementations of an EVCC (Electric Vehicle Communication Controller) or SECC (Supply Equipment Communication Controller) that implement the communications defined in ISO 15118-2. Test cases are provided mainly for the Network and Application layers (OSI Layer 3 and above) and are specified in TTCN-3 Core Language. The document also describes test architecture, configuration, control parts and supporting functions to execute conformance tests.

Key topics and requirements

• Abstract Test Suite (ATS): Capability tests to check static conformance requirements and behavior tests to exercise dynamic protocol requirements from ISO 15118-2.
• System Under Test (SUT): Tests target SUTs implementing EVCC or SECC functionality; observed behavior is matched against ISO 15118-2 requirements and declared capabilities.
• TTCN-3 test specifications: Conformance test cases for OSI Network Layer (Layer 3) and above are specified using TTCN-3; Layer 1/2 test cases are covered in ISO 15118-5.
• Test architecture and interfaces: Platform adapter and SUT adapter interfaces, codecs and test suite structure are described to enable repeatable test execution.
• Scope limitations: The standard does not test referenced external standards (e.g., IETF RFCs), nor does it assess performance, robustness, reliability, physical implementation details or power flow between EV and EVSE.
• Interworking emphasis: The suite increases confidence that different implementations interoperate but-by design-is not exhaustive and cannot guarantee interoperability.

Applications and practical value

• Ensures consistent implementation of the ISO 15118 application and network protocols for electric vehicle charging and vehicle-to-grid communications.
• Useful for:
  • EV OEMs validating EV communication stacks (EVCC).
  • Charging station manufacturers / EVSE suppliers validating SECC implementations.
  • Test laboratories and certification bodies executing protocol conformance testing using TTCN-3.
  • System integrators and software developers implementing V2G protocol stacks and secure charging services.
• Practical outcomes: improved interoperability, reduced integration issues, and a standardized approach to protocol verification for smart charging features (e.g., session setup, authorization, charge parameter discovery).

Related standards

• ISO 15118-2 - Vehicle-to-grid (V2G) network and application protocol specification (normative requirements tested by 15118-4).
• ISO 15118-5 - Conformance tests for Data Link Layer (Layer 2) and Physical Layer (Layer 1).
• TTCN-3 - Test description language used to specify test cases for Layers 3+.

Keywords: EN ISO 15118-4:2019, ISO 15118-4, vehicle-to-grid, V2G, EVCC, SECC, conformance test, TTCN-3, network and application protocol, electric vehicle charging, interoperability.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2019
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 4. del: Preskus
skladnosti omrežja in aplikacijskega protokola (ISO 15118-4:2018)
Road vehicles - Vehicle to grid communication interface - Part 4: Network and application
protocol conformance test (ISO 15118-4:2018)
Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -
Teil 4: Konformitätsprüfungen für das Netzwerk- und Anwendungsprotokoll (ISO 15118-
4:2018)
Véhicules routiers - Interface de communication entre véhicule et réseau électrique -
Partie 4: Essai de conformité du protocole d'application et du réseau (ISO 15118-4:2018)
Ta slovenski standard je istoveten z: EN ISO 15118-4:2019
ICS:
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
43.040.15 $YWRPRELOVNDLQIRUPDWLND Car informatics. On board
9JUDMHQLUDþXQDOQLãNLVLVWHPL computer systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15118-4
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2019
EUROPÄISCHE NORM
ICS 43.120
English Version
Road vehicles - Vehicle to grid communication interface -
Part 4: Network and application protocol conformance test
(ISO 15118-4:2018)
Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle
véhicule et réseau électrique - Partie 4: Essai de zwischen Fahrzeug und Ladestation - Teil 4:
conformité du protocole d'application et du réseau Konformitätsprüfungen für das Netzwerk- und
(ISO 15118-4:2018) Anwendungsprotokoll (ISO 15118-4:2018)
This European Standard was approved by CEN on 28 December 2018.

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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15118-4:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 15118-4:2018 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-
4:2019 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 August 2019, and conflicting national standards shall
be withdrawn at the latest by August 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15118-4:2018 has been approved by CEN as EN ISO 15118-4:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 15118-4
First edition
2018-02
Road vehicles — Vehicle to grid
communication interface —
Part 4:
Network and application protocol
conformance test
Véhicules routiers — Interface de communication entre véhicule et
réseau électrique —
Partie 4: Essai de conformité du protocole d'application et du réseau
Reference number
ISO 15118-4:2018(E)
©
ISO 2018
ISO 15118-4:2018(E)
© ISO 2018
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 15118-4:2018(E)
Contents Page
Foreword . vii
Introduction . viii
1  Scope . 1
2  Normative references . 2
3  Terms and definitions . 2
4  Symbols (and abbreviated terms) . 7
5  Conventions . 8
5.1  Requirement structure . 8
5.2  Test system description . 9
6  Test architecture reference model . 9
6.1  General information . 9
6.2  Platform adapter interface . 10
6.3  SUT adapter interfaces . 10
............................................................................................................................................................... 11
6.4  Codecs
7  Test suite conventions . 11
7.1  General information . 11
7.2  Test suite structure (TSS) . 11
7.3  Test profiles . 13
7.4  Test suite identifiers . 62
7.5  Test suite coverage . 67
7.6  Test case description . 184
7.7  Test case specification . 185
8  Test case descriptions for 15118-2 V2GTP . 198
8.1  General information . 198
8.2  SECC test cases . 198
8.3  EVCC test cases . 202
9  Test case descriptions for 15118-2 SDP messages . 208
9.1  General information . 208
9.2  SECC test cases . 208
9.3  EVCC test cases . 211
10  Test case descriptions for 15118-2 V2G application layer messages . 236
10.1  General information . 236
10.2  SECC test cases . 236
10.3  EVCC test cases . 405
Annex A (normative) Configuration specifications . 671
A.1  Timer configuration . 671
A.2  PICS configuration . 671
iii
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ISO 15118-4:2018(E)
A.3  PIXIT configuration . 673
Annex B (normative) Control part specification . 675
B.1  SECC control parts . 675
B.1.1  AC specific control parts . 675
B.1.2  DC specific control parts . 675
B.2  EVCC control parts . 688
B.2.1  AC specific control parts . 702
B.2.2  DC specific control parts . 702
Annex C (normative) Test-case specifications for 15118-2 V2GTP . 745
C.1  SECC test cases . 745
C.2  EVCC test cases . 745
Annex D (normative) Test-case specifications for 15118-2 SDP messages . 752
D.1  SECC test cases . 752
D.2  EVCC test cases . 752
Annex E (normative) Test-case specifications for 15118-2 V2G application layer messages . 773
E.1  SECC test cases . 773
E.1.1  V2G protocol handshake . 773
E.1.1.1 SECC test cases for SupportedAppProtocol . 773
E.1.2  V2G messages . 773
E.1.2.1 SECC test cases for SessionSetup . 775
E.1.2.2 SECC test cases for ServiceDiscovery . 775
E.1.2.3 SECC test cases for ServiceDetail . 782
E.1.2.4 SECC test cases for PaymentServiceSelection . 784
E.1.2.5 SECC test cases for PaymentDetails . 788
E.1.2.6 SECC test cases for Authorization . 794
E.1.2.7 SECC test cases for ChargeParameterDiscovery . 794
E.1.2.8 SECC test cases for PowerDelivery . 799
E.1.2.9 SECC test cases for CertificateUpdat e . 824
E.1.2.10  SECC test cases for CertificateInstallation . 839
E.1.2.11  SECC test cases for SessionStop . 839
E.1.2.12  SECC test cases for ChargingStatus . 842
E.1.2.13  SECC test cases for MeteringReceipt . 846
E.1.2.14  SECC test cases for CableCheck . 848
E.1.2.15  SECC test cases for PreCharge . 852
E.1.2.16  SECC test cases for CurrentDemand . 855
E.1.2.17  SECC test cases for WeldingDetection . 859
E.2  EVCC test cases . 860
Annex F (normative) Function specifications for supporting test execution . 1009
iv
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ISO 15118-4:2018(E)
F.1  Configuration functions . 1009
F.2  Pre-condition functions . 1009
F.2.1  SECC functi ons . 1011
F.2.2  EVCC functions . 1027
F.3  Post-condition functions . 1027
F.3.1  SECC functi ons . 1038
F.3.2  EVCC functions . 1038
F.4  Common behavior functions . 1039
F.4.1  SECC functi ons . 1040
F.4.2  EVCC functions . 1042
F.5  Library functions . 1044
Annex G (normative) Function specifications for 15118-2 V2GTP . 1051
G.1  SECC functi ons . 1051
G.2  EVCC functions . 1053
Annex H (normative) Function specifications for 15118-2 SDP messages . 1056
H.1  SECC functi ons . 1056
H.2  EVCC functions . 1057
Annex I (normative) Function specifications for 15118-2 V2G application layer messages . 1061
I.1  SECC functi ons . 1061
I.1.1  V2G protocol handshake . 1061
I.1.1.1  SECC functions for SupportedAppProtocol . 1061
I.1.2  V2G messages . 1063
I.1.2.1  SECC functions for SessionSetup . 1063
I.1.2.2  SECC functions for ServiceDiscovery . 1064
I.1.2.3  SECC functions for ServiceDetail . 1072
I.1.2.4  SECC functions for PaymentServiceSelection . 1080
I.1.2.5  SECC functions for PaymentDetails . 1087
I.1.2.6  SECC functions for Authorization . 1091
I.1.2.7  SECC functions for ChargeParameterDiscovery . 1104
I.1.2.8  SECC functions for PowerDelivery . 1140
I.1.2.9  SECC functions for CertificateUpdate . 1154
I.1.2.10  SECC functions for CertificateInstallation . 1167
I.1.2.11  SECC functions for SessionStop . 1176
I.1.2.12  SECC functions for ChargingStatus . 1176
I.1.2.13  SECC functions for MeteringReceipt . 1185
I.1.2.14  SECC functions for CableCheck . 1197
I.1.2.15  SECC functions for PreCharge . 1203
I.1.2.16  SECC functions for CurrentDemand . 1207
v
© ISO 2018 ‐ All rights reserved

ISO 15118-4:2018(E)
I.1.2.17  SECC functions for WeldingDetection . 1213
I.2  EVCC functions . 1217
Annex J (normative) Template specifications for V2G TCP/TLS Port Control . 1373
Annex K (normative) Template specifications for 15118-2 V2GTP . 1375
K.1  Common templates . 1375
Annex L (normative) Template specifications for 15118-2 SDP messages . 1376
L.1  Common templates . 1376
Annex M (normative) Template specifications for 15118-2 V2G application layer messages 1377
M.1  Common templates . 1377
M.1.1  V2G protocol handshake . 1378
M.1.1.1  CMN templates for SupportedAppProtocol . 1378
M.1.2  V2G messages . 1378
M.1.2.1  CMN templates for SessionSetup . 1378
M.1.2.2  CMN templates for ServiceDiscovery . 1378
M.1.2.3  CMN templates for Authorization . 1381
M.1.2.4  CMN templates for PowerDelivery . 1381
M.1.2.5  CMN templates for SessionStop . 1383
M.1.2.6  CMN templates for ChargingStatus . 1384
M.1.2.7  CMN templates for CableCheck . 1384
M.1.2.8  CMN templates for PreCharge . 1385
M.1.2.9  CMN templates for CurrentDemand . 1385
M.1.2.10  CMN templates for WeldingDetection . 1387
M.2  SECC templates . 1387
M.3  EVCC templates . 1397
Annex N (normative) Template specifications for Security . 1430
N.1  Common templates . 1430
Annex O (normative) Data type definitions . 1434
O.1  Data types for PICS . 1434
O.2  Data types for PIXIT . 1434
O.3  Data types for V2G TCP/TLS Port Control . 1436
O.4  Data types for V2GTP . 1437
O.5  Data types for SDP messages . 1438
O.6  Data types for V2G messages . 1438
O.7  Data types for Security . 1457
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ISO 15118-4:2018(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 voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31,
Electrical and electronic equipment, and Technical Committee IEC/TC 69 Electric road vehicles and
electric industrial trucks. The draft was circulated for voting to the national bodies of both ISO and IEC.
A list of all parts in the ISO 15118 series can be found on the ISO website.
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ISO 15118-4:2018(E)
Introduction
The first three parts of ISO 15118 describe the use cases and the technical specification of the Vehicle‐
to‐Grid Communication Interface which is intended for the optimized use of energy resources so that
electric road vehicles can recharge in the most economic or most energy efficient way. It is furthermore
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.
The complexity resulting from the network and application protocol requirements defined in the
second part of the standard requires a considerable amount of testing in order to enable
interoperability between independent implementations. This document therefore defines a
conformance test suite for the network and application layer protocols in order to derive a common and
agreed basis for conformance tests. The resulting test suite is a necessary prerequisite for downstream
interoperability tests. Since interoperability furthermore involves the actual application logic of an
implementation those tests are beyond the scope of this document. Hence this document focuses on the
interface aspects and the corresponding requirements given in part two only.
viii
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INTERNATIONAL STANDARD ISO 15118-4:2018(E)
Road vehicles — Vehicle to grid communication interface —
Part 4: Network and application protocol conformance test
1 Scope
This document specifies conformance tests in the form of an Abstract Test Suite (ATS) for a System
Under Test (SUT) implementing an EVCC or SECC according to ISO 15118‐2. These conformance tests
specify the testing of capabilities and behaviors of an SUT as well as checking what is observed against
the conformance requirements specified in ISO 15118‐2 and against what the supplier states the SUT
implementation's capabilities are.
The capability tests within the ATS check that the observable capabilities of the SUT are in accordance
with the static conformance requirements defined in ISO 15118‐2. The behavior tests of the ATS
examine an implementation as thoroughly as is practical over the full range of dynamic conformance
requirements defined in ISO 15118‐2 and within the capabilities of the SUT (see NOTE).
A test architecture is described in correspondence to the ATS. The conformance test cases in this
document are described leveraging this test architecture and are specified in TTCN‐3 Core Language for
ISO/OSI Network Layer (Layer 3) and above. The conformance test cases for the Data Link Layer (Layer
2) and Physical Layer (Layer 1) are described in ISO 15118‐5. Test cases with overlapping scopes are
explicitly detailed.
This document does not include specific tests of other standards referenced within ISO 15118‐2, e.g.
IETF RFCs. Furthermore, the conformance tests specified in this document do not include the
assessment of performance nor robustness or reliability of an implementation. They cannot provide
judgments on the physical realization of abstract service primitives, how a system is implemented, how
it provides any requested service, nor the environment of the protocol implementation. Furthermore,
the test cases defined in this document only consider the communication protocol defined ISO 15118‐2.
Power flow between the EVSE and the EV is not considered.
NOTE 1 Practical limitations make it impossible to define an exhaustive test suite, and economic considerations
can restrict testing even further. Hence, the purpose of this document is to increase the probability that different
implementations are able to interwork. This is achieved by verifying them by means of a protocol test suite,
thereby increasing the confidence that each implementation conforms to the protocol specification. However, the
specified protocol test suite cannot guarantee conformance to the specification since it detects errors rather than
their absence. Thus conformance to a test suite alone cannot guarantee interworking. What it does do is give
confidence that an implementation has the required capabilities and that its behavior conforms consistently in
representative instances of communication.
NOTE 2 This document has some interdependencies to the conformance tests defined in ISO 15118‐5 which
result from ISO/OSI cross layer dependencies in the underlying protocol specification (e.g. for sleep mode)
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ISO 15118-4:2018(E)
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 61851‐1:2017, Electric vehicle conductive charging system — Part 1: General requirements
ISO 15118‐1:2013, Road vehicles — Vehicle to grid communication interface — Part 1: General
information and use-case definition
ISO 15118‐2:2014, Road vehicles — Vehicle-to-Grid Communication Interface — Part 2: Network and
application protocol requirements
ISO 15118‐3:2015, Road vehicles — Vehicle-to-Grid Communication Interface — Part 3: Physical and data
link layer requirements
ETSI ES 201 873‐5 V4.6.1, TTCN-3: TTCN-3 Runtime Interface (June 2014)
ETSI ES 201 873‐6 V4.6.1, TTCN-3: TTCN-3 Control Interface (June 2014)
NOTE 1 Even though the technical specification ISO 15118‐2:2014, which is the baseline for this conformance
test document, explicitly references IEC 61851‐1:2011, this document references IEC 61851‐1:2017 because of
applicability on the market.
3 Terms and definitions
For the purpose of this document, the terms and definitions given in ISO 15118‐1, ISO 15118‐2,
ISO 15118‐3 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
abstract test case
complete and independent specification of the actions required to achieve a specific test purpose
Note 1 to entry: This specification is defined at the level of abstraction of a particular Abstract Test Method,
starting in a stable testing state and ending in a stable testing state and may involve one or more consecutive or
concurrent connections.
Note 2 to entry: The specification should be complete in the sense that it is sufficient to enable a test verdict to be
assigned unambiguously to each potentially observable test outcome (i.e. sequence of test events).
Note 3 to entry: The specification should be independent in the sense that it should be possible to execute the
derived executable test case in isolation from other such test cases (i.e. the specification should always include the
possibility of starting and finishing in the “idle” state).
Note 4 to entry: Compare with ITU‐T X.290.
3.2
abstract test suite
ATS
test suite composed of abstract test cases
Note 1 to entry: Compare with ITU‐T X.290.
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ISO 15118-4:2018(E)
3.3
black box testing
method of testing that examines the behavior of an SUT without considering the internal
implementation and structure of the SUT, thus relying on the SUT's open interface for testing
3.4
conformance requirements
conformance of a real system consisting of conformance to each requirement and conformance to the
set
Note 1 to entry: Set of interrelated requirements which together define the behavior of the system and its
communication. Conformance of a real system will, therefore, be expressed at two levels, conformance to each
individual requirement and conformance to the set. Applicable ISO 15118‐4 conformance tests include
requirements and transfer syntax requirements as far as they can be validated by black box testing.
Note 2 to entry: See also static conformance requirements and dynamic conformance requirements.
3.5
conforming implementation
IUT which satisfies both static and dynamic conformance requirements, consistent with the capabilities
stated in the PICS(s)
Note 1 to entry: Compare with ITU‐T X.290.
3.6
dynamic conformance requirements
one of the requirements which specifies what observable behavior is permitted by the relevant
specification(s) in instances of communication
Note 1 to entry: The requirements for this conformance specification are defined in ISO 15118‐2.
Note 2 to entry: Compare with ITU‐T X.290.
3.7
executable test case
realization of an abstract test case
Note 1 to entry: Compare with ITU‐T X.290.
3.8
expected behavior
exact response of the SUT according to the underlying protocol specification to the stimulus defined in
the test behavior
3.9
implementation conformance statement
ICS
statement made by the supplier of an implementation or system claimed to conform to a given
specification, stating which capabilities have been implemented
Note 1 to entry: The given specification for this conformance specification is ISO 15118‐2.
Note 2 to entry: Compare with ITU‐T X.290.
3.10
implementation extra information for testing
IXIT
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ISO 15118-4:2018(E)
statement made by a supplier or implementer of an IUT which contains or references all of the
information (in addition to that given in the ICS) related to the IUT and its testing environment, which
will enable the test laboratory to run an appropriate test suite against the IUT
Note 1 to entry: Compare with ITU‐T X.290.
3.11
implementation under test
IUT
implementation of one or more OSI protocols in an adjacent user/provider relationship, being that part
of a real open system which is to be studied by testing
Note 1 to entry: Compare with ITU‐T X.290.
3.12
main test component
MTC
single test component in a test component configuration responsible for creating and controlling
parallel test components and computing and assigning the test verdict
Note 1 to entry: Compare with ITU‐T X.290.
3.13
parallel test component
PTC
test component created by the main test component
Note 1 to entry: Compare with ITU‐T X.292.
3.14
post-condition
test steps needed to define the path from the end of the test behavior up to the finishing stable state for
the test case
Note 1 to entry: See also Test behavior.
3.15
pre-condition
test steps needed to define the path from the starting stable state of the test case up to the initial state
from which the test bevavior will start
Note 1 to entry: See also Test behavior.
3.16
protocol implementation conformance statements
PICS
ICS for an implementation or system claimed to conform to a given protocol specification
Note 1 to entry: The given protocol specification for this conformance specification is ISO 15118‐2.
Note 2 to entry: Compare with ITU‐T X.290.
3.17
protocol implementation extra information for testing
PIXIT
IXIT related to testing for conformance to a given protocol specification
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ISO 15118-4:2018(E)
Note 1 to entry: The given protocol specification for this conformance specification is ISO 15118‐2.
Note 2 to entry: Compare with ITU‐T X.290.
3.18
runtime environment
environment that describes the operating system and corresponding platform requirements of a system
EXAMPLE Test system.
3.19
semantically invalid test behavior
SemITB
test steps where the test system sends stimuli to the SUT that are semantically invalid according to the
protocol requirements
Note 1 to entry: This type of test behavior is defined in this conformance standard and explicitly includes
requirements which define the appropriate error handling of the SUT.
3.20
static conformance requirements
one of the requirements that specify the limitations on the combinations of implemented capabilities
permitted in a real open system which is claimed to conform to the relevant specification(s)
Note 1 to entry: Compare with ITU‐T X.290.
3.21
system under test
SUT
real open system in which the IUT resides
Note 1 to entry: Compare with ITU‐T X.290.
3.22
syntactically invalid test behavior
SynITB
t
...