Road vehicles - Vehicle to grid communication interface - Part 1: General information and use-case definition (ISO 15118-1:2013)

This International Standard specifies the communication between battery electric vehicles (BEV) or plug-in hybrid electric vehicles (PHEV) and the supply equipment (EVSE). 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 the description of terms and definitions, general requirements and use cases as basis for the other parts of this International Standard. ISO/IEC 15118-1 provides a general overview and a common understanding of aspects influencing the charge process, the payment and the load levelling. It specifies furthermore the initial start-up process and security issues for charging.
This International Standard does not define the vehicle internal communication between battery and charging equipment and the communication of the supply equipment to other actors and equipment.
NOTE Vehicle internal communication and communication from the EVSE to other actors beside the vehicle may
address as triggers in the use cases or as actors in the security requirements. Related hardware issues as plugs and cables are defined in other standards.

Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation - Teil 1: Allgemeine Informationen und Festlegungen der Anwendungsfälle (ISO 15118-1:2013)

Véhicules routiers - Interface de communication entre véhicule et réseau électrique - Partie 1: Informations générales et définition de cas d'utilisation (ISO 15118-1:2013)

Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 1. del: Splošne informacije in definicija primera uporabe (ISO 15118-1:2013)

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 (EVSE). Zajema celotno izmenjavo informacij med vsemi stranmi, ki so udeležene pri električnem polnjenju. Ta mednarodni standard se uporablja za ročno priključeno kabelsko polnjenje. Cilj tega dela standarda ISO/IEC 15118 je opis izrazov in definicij, splošnih zahtev in primerov uporabe, ki bodo podlaga za druge dele tega mednarodnega standarda. ISO/IEC 15118-1 ponuja splošen pregled in razumevanje vidikov, ki vplivajo na postopek polnjenja, plačilo in uravnavanje obremenitve. Nadalje določa začetni postopek zagona in varnostna vprašanja, povezana s polnjenjem. Ta mednarodni standard ne določa notranje komunikacije v vozilu med akumulatorjem in opremo za polnjenje ter komunikacije opreme za polnjenje z drugimi stranmi in opremo. OPOMBA: Notranja komunikacija v vozilu in komunikacija med opremo za polnjenje in drugimi uporabniki poleg vozila se lahko obravnava kot sprožila v primerih uporabe ali kot uporabniki pri varnostnih zahtevah. Povezana vprašanja glede stojne opreme, kot so vtiči in kabli, so opredeljena v drugih standardih.

General Information

Status
Withdrawn
Public Enquiry End Date
29-Apr-2015
Publication Date
30-Aug-2015
Withdrawal Date
09-May-2019
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
10-May-2019
Due Date
02-Jun-2019
Completion Date
10-May-2019

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SLOVENSKI STANDARD
SIST EN ISO 15118-1:2015
01-oktober-2015
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 1. del: Splošne
informacije in definicija primera uporabe (ISO 15118-1:2013)
Road vehicles - Vehicle to grid communication interface - Part 1: General information
and use-case definition (ISO 15118-1:2013)
Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -
Teil 1: Allgemeine Informationen und Festlegungen der Anwendungsfälle (ISO 15118-
1:2013)
Véhicules routiers - Interface de communication entre véhicule et réseau électrique -
Partie 1: Informations générales et définition de cas d'utilisation (ISO 15118-1:2013)
Ta slovenski standard je istoveten z: EN ISO 15118-1:2015
ICS:
35.100.05 9HþVORMQHXSRUDEQLãNH Multilayer applications
UHãLWYH
43.040.15 $YWRPRELOVNDLQIRUPDWLND Car informatics. On board
9JUDMHQLUDþXQDOQLãNLVLVWHPL computer systems
SIST EN ISO 15118-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 15118-1:2015

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SIST EN ISO 15118-1:2015

EUROPEAN STANDARD
EN ISO 15118-1

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2015
ICS 43.120
English Version
Road vehicles - Vehicle to grid communication interface - Part 1:
General information and use-case definition (ISO 15118-1:2013)
Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle zwischen
véhicule et réseau électrique - Partie 1: Informations Fahrzeug und Ladestation - Teil 1: Allgemeine
générales et définition de cas d'utilisation (ISO 15118- Informationen und Festlegungen der Anwendungsfälle (ISO
1:2013) 15118-1:2013)
This European Standard was approved by CEN on 30 July 2015.

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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15118-1:2015 E
worldwide for CEN national Members.

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SIST EN ISO 15118-1:2015
EN ISO 15118-1:2015 (E)
Contents
Page
European foreword .3
2

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SIST EN ISO 15118-1:2015
EN ISO 15118-1:2015 (E)
European foreword
The text of ISO 15118-1:2013 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 15118-1:2015 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 February 2016, and conflicting national standards shall be withdrawn
at the latest by February 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 15118-1:2013 has been approved by CEN as EN ISO 15118-1:2015 without any modification.

3

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SIST EN ISO 15118-1:2015

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SIST EN ISO 15118-1:2015
INTERNATIONAL ISO
STANDARD 15118-1
First edition
2013-04-15
Corrected version
2013-10-01
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 15118-1:2013(E)
©
ISO 2013

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
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 2013 – All rights reserved

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 9
5 Requirements .10
5.1 Communication concept .10
5.2 General considerations .11
5.3 User-specific requirements .11
5.4 OEM-specific requirements.12
5.5 Utility-specific requirements .13
6 Actors.14
6.1 General .14
7 Use Case Elements .15
7.1 General .15
7.2 Start of charging process [A] .17
7.3 Communication set-up [B] .20
7.4 Certificate handling [C] .20
7.5 Identification and Authorization [D].23
7.6 Target setting and charging scheduling [E] .29
7.7 Charging controlling and re-scheduling [F] .36
7.8 Value Added Services [G] .42
7.9 End of charging process [H].43
Annex A (informative) Charging infrastructure architecture .45
Annex B (informative) Security .55
Annex C (informative) Examples of charging scenarios derived from the use case elements .60
Bibliography .65
© ISO 2013 – All rights reserved iii

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(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. 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. 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.
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
ISO 15118-1 was developed in cooperation 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
The following parts are under preparation:
— Part 4: Network and application protocol conformance test
— Part 5: Physical layer and data link layer conformance test
This corrected version of ISO 15118-1:2013 incorporates the following correction:
— The ISO/IEC double logo was added to the cover page.
iv © ISO 2013 – All rights reserved

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

Introduction
The pending energy crisis and the necessity to reduce greenhouse gas emissions have led vehicle
manufacturers to make 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 global energy efficiency and reduce the total CO emissions
2
for road transportation if the electricity is produced from renewable sources. To charge the batteries of
such vehicles, specific charging infrastructure 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 vehicle, the local installation and the grid has not been
treated sufficiently.
Such communication is beneficial for the optimization of energy resources and energy production systems
as vehicles can recharge at the most economic or most energy-efficient instants. It is also required to
develop efficient and convenient payment 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.
© ISO 2013 – All rights reserved v

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SIST EN ISO 15118-1:2015

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SIST EN ISO 15118-1:2015
INTERNATIONAL STANDARD ISO 15118-1:2013(E)
Road vehicles — Vehicle to grid communication interface —
Part 1:
General information and use-case definition
1 Scope
ISO 15118 specifies the communication between Electric Vehicles (EV), including Battery Electric
Vehicles and Plug-In Hybrid Electric Vehicles, and the Electric Vehicle Supply Equipment (EVSE). As the
communication parts of this generic equipment are the Electric Vehicle Communication Controller (EVCC)
and the Supply Equipment Communication Controller (SECC), ISO 15118 describes the communication
between these components. Although ISO 15118 is oriented to the charging of electric road vehicles, it is
open for other vehicles as well.
This part of ISO 15118 specifies terms and definitions, general requirements and use cases as the basis
for the other parts of ISO 15118. It provides a general overview and a common understanding of aspects
influencing the charge process, payment and load levelling.
ISO 15118 does not specify the vehicle internal communication between battery and charging
equipment and the communication of the SECC to other actors and equipment (beside some dedicated
message elements related to the charging). All connections beyond the SECC, and the method of message
exchanging are considered to be out of the scope as specific use cases.
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 ISO 15118 as well.
NOTE 2 This part of ISO 15118 is destined to orientate the message set of ISO 15118-2. The absence of any particular
use case in this part of ISO 15118 does not imply that it shall not put into practice, with the required messages.
NOTE 3 This part of ISO 15118 and ISO 15118-2 are designed to work independent of data transfer medium
used. However, this series of documents are made for fitting the specified data link layers in the corresponding
documents in this series.
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.
IEC 60050, International electrotechnical vocabulary
IEC 61851-1, Electric vehicle conductive charging system — Part 1: General requirements
ISO/TR 8713, Electrically propelled road vehicles — Vocabulary
ISO 15118-2, Road vehicles — Vehicle to grid communication interface — Part 2: Network and application
protocol requirements
ISO 15118-3, Road Vehicles — Vehicle to grid communication interface — Part 3: Physical and data link
layer requirements
© ISO 2013 – All rights reserved 1

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 8713 and the following apply.
3.1
actor
entity which characterizes a role played by a user or any other system that interacts with the subject
3.2
amount of energy for charging
energy required by the EV until the departure time has been reached or the battery’s SOC is at 100 %
Note 1 to entry: This might include the amount of energy the EV consumes for other vehicle features than solely
charging the battery.
3.3
authentication
procedure between EVCC and SECC or between USER and EVSE or SA, to prove that the provided
information (see identification) is either correct, valid, or it belongs to the EVCC, the USER or the SECC
3.4
authorization
procedure for EVSE to verify if EV is allowed to be charged
3.5
basic signalling
physical signalling according to the pilot function provided by IEC 61851-1, Annex A
3.6
Battery Management System
BMS
electronic device that controls or manages the electric and thermal functions of the battery system and
that provides communication between the battery system and other vehicle controllers
3.7
certificate
electronic document which uses a digital signature to bind a public key with an identity
Note 1 to entry: ISO 15118 describes several certificates covering different purposes (e.g. Contract Certificate
including the contract ID and OEM Provisioning Certificates)
3.8
charger
power converter that performs the necessary functions for charging a battery
3.9
charging control
function that confirms the maximum charge current which is allowed to be drawn from EVSE based on
charging schedule
Note 1 to entry: Actual charge current to the battery should be controlled by BMS. It is not in scope of ISO 15118.
3.10
charging scenario
combination of use case elements to fulfil a specific charging use case
3.11
charging schedule
scheme which contains the power limits for charging the EV for a specific time
Note 1 to entry: The EV should apply the negotiated limits as close as possible, to allow power balancing for the DSO
2 © ISO 2013 – All rights reserved

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

EXAMPLE The schedule is calculated based on target setting, sales tariff table and grid schedule information,
respecting the corresponding current limitations, i.e. using the lowest current value.
3.12
charging session
time between the beginning (connection of the cable) and the end (disconnection of the cable) of a
charging process
Note 1 to entry: During a charging session the EV may have none, one, or many periods of charging the battery,
doing pre-conditioning or post-conditioning.
3.13
contactor
electrically controlled switch used for switching a power circuit
Note 1 to entry: Unlike a circuit breaker, a contactor is not intended to interrupt a short circuit current.
Note 2 to entry: As far as communication is concerned the contactor occurs as a trigger for the power supply.
3.14
contract ID
contract IDentification of the contract that is used by the SECC or secondary actor to enable charging
and related services (including billing)
Note 1 to entry: The contract ID is associated with the electricity consumer and may be vehicle-specific or
customer-specific. The customer can e.g. be the driver, the owner of the vehicle.
3.15
credential
document attesting the permission of the EV to be charged
3.16
demand and prognosis
function that covers the collection of grid and local installation limits which applies to the actual
charging process
EXAMPLE Sales tariff table containing a price, CO content and percentage of renewable energy information
2
vs. time based on grid, energy production, energy demand and customer contract information, along with an
optional contract-based current limitation. Grid schedule containing a current vs. time limitation at the specific
EVSE due to local installation and local electricity demand situation.
3.17
Demand Clearing House
DCH
entity for grid negotiation that provides information on the load of the grid
Note 1 to entry: The demand clearing house mediates between two clearing partners: a SECC and the part of the
power grid connected to this SECC. Most likely this function will be served by a system operator.
Note 2 to entry: Demand clearing house and meter operator may exchange information with each other as well as
with other actors.
EXAMPLE A DCH typically fulfils following tasks:
— Collect all necessary information from all parts of the power grid, e.g. current or forecasted load of
local transformers, distribution grid, power substation, transmission grid, transmission substation,
power plants (including renewable energies), and predicted charging schedules submitted by EVCCs.
— Consolidate the collected grid information to a “grid profile” and offer it to SECCs/EVCCs.
— Provide charging schedule proposal for the connected EV to the requesting SECC based on the
collected grid profile.
© ISO 2013 – All rights reserved 3

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

— Inform the SECC as to the necessity for an updated charging schedule if the grid profile has changed.
— On the contrary, the SECC will inform the demand clearing house if the EV’s charging schedule has
changed.
3.18
departure time
point in time when the user intends to unplug the car and/or leave the charging location
3.19
Distribution System Operator
DSO
entity responsible for the voltage stability in the distribution grid (medium- and low-voltage power grid)
Note 1 to entry: Electricity distribution is the final stage in the physical delivery of electricity to the delivery point
(e.g. end user, EVSE or parking operator).
Note 2 to entry: A distribution system network carries electricity from the transmission grid and delivers it to
consumers. Typically, the network would include medium-voltage power lines, electrical substations and low-
voltage distribution wiring networks with associated equipment. Depending on national distribution regulations,
the DSO may also be responsible for metering the energy (MO).
3.20
E-Mobility Operator
entity with which the customer has a contract for all services related to the EV operation
Note 1 to entry: Typically the E-Mobility Operator will include some of the other actors, like spot operator or
Electricity Provider, and has a close relationship with the distribution system operator and meter operator. An
OEM or utility could also fulfil such a role.
Note 2 to entry: The E-Mobility Operator validates contract IDs from his customers, which were received either
from the E-Mobility Operator Clearing House, other E-Mobility Operators or spot operators he is in relation with.
Note 3 to entry: The E-Mobility Operator issues contract IDs to his customers.
3.21
E-Mobility Operator Clearing House
EMOCH
entity mediating between two clearing partners to provide validation services for roaming regarding
contracts of different E-Mobility Operators for the purpose of
— collecting all necessary contract information like contract ID, E-Mobility Operator, communication
path to E-Mobility Operator, roaming fees, begin and end date of contract, etc.,
— providing SECC with confirmation that an E-Mobility Operator will pay for a given contract ID
(authorization of valid contract),
— transferring a Service Detail Record (SDR) after each charging session to correct E-Mobility Operator
and Electricity Provider of the identified contract.
Note 1 to entry: E-Mobility Operator Clearing House, E-Mobility Operator and meter operator may exchange
information with each other as well as other actors.
3.22
Electric Energy Meter
EEM
equipment for measuring electrical energy by integrating power with respect to time, which complies
with IEC 62052-11 and IEC 62053-21, IEC 62053-52
Note 1 to entry: Some use cases need the amount of electric energy measured by the electric energy meter and
communicated through the SECC to the EVCC, while other scenarios do not need a separate electric energy meter.
The EV may get this information and use it according to the OEM’s intentions
4 © ISO 2013 – All rights reserved

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

3.23
Electricity Provider
EP
body of secondary actor to provide electricity
3.24
Electric Vehicle
EV
any vehicle propelled by an electric motor drawing current from a rechargeable storage battery or
from other portable energy storage devices (rechargeable, using energy from a source off the vehicle
such as a residential or public electric service), which is manufactured primarily for use on public
streets, roads or highways
3.25
Electric Vehicle Communication Controller
EVCC
embedded system, within the vehicle, that implements the communication between the vehicle and the
SECC in order to support specific functions
Note 1 to entry: Such specific functions could be e.g. controlling input and output channels, encryption, or data
transfer between vehicle and SECC.
3.26
Electric Vehicle Supply Equipment
EVSE
conductors, including the phase(s), neutral and protective earth conductors, the EV couplers, attached
plugs, and all other accessories, devices, power outlets or apparatuses installed specifically for the
purpose of delivering energy from the premises wiring to the EV and allowing communication between
them as necessary
3.27
Electronic Control Unit
ECU
unit providing information regarding the vehicle
3.28
energy transfer type
element which allows the EV to select its desired energy transfer type in case both the EVSE and EV
support multiple charging types and different plugs and sockets according to IEC 62196
3.29
EVSE ID
unique identification of the charging spot
Note 1 to entry: The SECC provides the EVSE ID. This ID includes the EVSE operator ID and the power outlet ID,
issued by the EVSE operator.
3.30
EVSE operator
actor for managing and maintaining the charging spot
3.31
External Identification Means
EIM
any external means that enable the user to identify his contract or the car
EXAMPLE NFC, RFID, SMS.
© ISO 2013 – All rights reserved 5

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SIST EN ISO 15118-1:2015
ISO 15118-1:2013(E)

3.32
Fleet Operator
FO
person or legal entity operating several EVs and who may have the contracts with the E-Mobility Operator
3.33
...

SLOVENSKI STANDARD
kSIST FprEN ISO 15118-1:2015
01-april-2015
Cestna vozila - Komunikacijski vmesnik med vozilom in omrežjem - 1. del: Splošne
informacije in definicija primera uporabe (ISO 15118-1:2013)
Road vehicles - Vehicle to grid communication interface - Part 1: General information
and use-case definition (ISO 15118-1:2013)
Straßenfahrzeuge - Kommunikationsschnittstelle zwischen Fahrzeug und Ladestation -
Teil 1: Allgemeine Informationen und Festlegungen der Anwendungsfälle (ISO 15118-
1:2013)
Véhicules routiers - Interface de communication entre véhicule et réseau électrique -
Partie 1: Informations générales et définition de cas d'utilisation (ISO 15118-1:2013)
Ta slovenski standard je istoveten z: FprEN ISO 15118-1
ICS:
43.040.15 $YWRPRELOVNDLQIRUPDWLND Car informatics. On board
9JUDMHQLUDþXQDOQLãNLVLVWHPL computer systems
43.120 (OHNWULþQDFHVWQDYR]LOD Electric road vehicles
kSIST FprEN ISO 15118-1:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
kSIST FprEN ISO 15118-1:2015

---------------------- Page: 2 ----------------------
kSIST FprEN ISO 15118-1:2015

EUROPEAN STANDARD
FINAL DRAFT
FprEN ISO 15118-1
NORME EUROPÉENNE

EUROPÄISCHE NORM

January 2015
ICS 43.040.15; 43.120
English Version
Road vehicles - Vehicle to grid communication interface - Part 1:
General information and use-case definition (ISO 15118-1:2013)
Véhicules routiers - Interface de communication entre Straßenfahrzeuge - Kommunikationsschnittstelle zwischen
véhicule et réseau électrique - Partie 1: Informations Fahrzeug und Ladestation - Teil 1: Allgemeine
générales et définition de cas d'utilisation (ISO 15118- Informationen und Festlegungen der Anwendungsfälle (ISO
1:2013) 15118-1:2013)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical
Committee CEN/TC 301.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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
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CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
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Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
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© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. FprEN ISO 15118-1:2015 E
worldwide for CEN national Members.

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Contents
Page
Foreword .3


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kSIST FprEN ISO 15118-1:2015
FprEN ISO 15118-1:2015 (E)
Foreword
The text of ISO 15118-1:2013 has been prepared by Technical Committee ISO/TC 22 “Road vehicles” of the
International Organization for Standardization (ISO) and has been taken over as FprEN ISO 15118-1:2015 by
Technical Committee CEN/TC 301 “Road vehicles” the secretariat of which is held by AFNOR.
This document is currently submitted to the Unique Acceptance Procedure.
Endorsement notice
The text of ISO 15118-1:2013 has been approved by CEN as FprEN ISO 15118-1:2015 without any
modification.

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kSIST FprEN ISO 15118-1:2015

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kSIST FprEN ISO 15118-1:2015
INTERNATIONAL ISO
STANDARD 15118-1
First edition
2013-04-15
Corrected version
2013-10-01
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 15118-1:2013(E)
©
ISO 2013

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ISO 15118-1:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
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
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Published in Switzerland
ii © ISO 2013 – All rights reserved

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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and abbreviated terms . 9
5 Requirements .10
5.1 Communication concept .10
5.2 General considerations .11
5.3 User-specific requirements .11
5.4 OEM-specific requirements.12
5.5 Utility-specific requirements .13
6 Actors.14
6.1 General .14
7 Use Case Elements .15
7.1 General .15
7.2 Start of charging process [A] .17
7.3 Communication set-up [B] .20
7.4 Certificate handling [C] .20
7.5 Identification and Authorization [D].23
7.6 Target setting and charging scheduling [E] .29
7.7 Charging controlling and re-scheduling [F] .36
7.8 Value Added Services [G] .42
7.9 End of charging process [H].43
Annex A (informative) Charging infrastructure architecture .45
Annex B (informative) Security .55
Annex C (informative) Examples of charging scenarios derived from the use case elements .60
Bibliography .65
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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. 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. 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.
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 3, Electrical
and electronic equipment.
ISO 15118-1 was developed in cooperation 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
The following parts are under preparation:
— Part 4: Network and application protocol conformance test
— Part 5: Physical layer and data link layer conformance test
This corrected version of ISO 15118-1:2013 incorporates the following correction:
— The ISO/IEC double logo was added to the cover page.
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Introduction
The pending energy crisis and the necessity to reduce greenhouse gas emissions have led vehicle
manufacturers to make 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 global energy efficiency and reduce the total CO emissions
2
for road transportation if the electricity is produced from renewable sources. To charge the batteries of
such vehicles, specific charging infrastructure 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 vehicle, the local installation and the grid has not been
treated sufficiently.
Such communication is beneficial for the optimization of energy resources and energy production systems
as vehicles can recharge at the most economic or most energy-efficient instants. It is also required to
develop efficient and convenient payment 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.
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kSIST FprEN ISO 15118-1:2015
INTERNATIONAL STANDARD ISO 15118-1:2013(E)
Road vehicles — Vehicle to grid communication interface —
Part 1:
General information and use-case definition
1 Scope
ISO 15118 specifies the communication between Electric Vehicles (EV), including Battery Electric
Vehicles and Plug-In Hybrid Electric Vehicles, and the Electric Vehicle Supply Equipment (EVSE). As the
communication parts of this generic equipment are the Electric Vehicle Communication Controller (EVCC)
and the Supply Equipment Communication Controller (SECC), ISO 15118 describes the communication
between these components. Although ISO 15118 is oriented to the charging of electric road vehicles, it is
open for other vehicles as well.
This part of ISO 15118 specifies terms and definitions, general requirements and use cases as the basis
for the other parts of ISO 15118. It provides a general overview and a common understanding of aspects
influencing the charge process, payment and load levelling.
ISO 15118 does not specify the vehicle internal communication between battery and charging
equipment and the communication of the SECC to other actors and equipment (beside some dedicated
message elements related to the charging). All connections beyond the SECC, and the method of message
exchanging are considered to be out of the scope as specific use cases.
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 ISO 15118 as well.
NOTE 2 This part of ISO 15118 is destined to orientate the message set of ISO 15118-2. The absence of any particular
use case in this part of ISO 15118 does not imply that it shall not put into practice, with the required messages.
NOTE 3 This part of ISO 15118 and ISO 15118-2 are designed to work independent of data transfer medium
used. However, this series of documents are made for fitting the specified data link layers in the corresponding
documents in this series.
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.
IEC 60050, International electrotechnical vocabulary
IEC 61851-1, Electric vehicle conductive charging system — Part 1: General requirements
ISO/TR 8713, Electrically propelled road vehicles — Vocabulary
ISO 15118-2, Road vehicles — Vehicle to grid communication interface — Part 2: Network and application
protocol requirements
ISO 15118-3, Road Vehicles — Vehicle to grid communication interface — Part 3: Physical and data link
layer requirements
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3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TR 8713 and the following apply.
3.1
actor
entity which characterizes a role played by a user or any other system that interacts with the subject
3.2
amount of energy for charging
energy required by the EV until the departure time has been reached or the battery’s SOC is at 100 %
Note 1 to entry: This might include the amount of energy the EV consumes for other vehicle features than solely
charging the battery.
3.3
authentication
procedure between EVCC and SECC or between USER and EVSE or SA, to prove that the provided
information (see identification) is either correct, valid, or it belongs to the EVCC, the USER or the SECC
3.4
authorization
procedure for EVSE to verify if EV is allowed to be charged
3.5
basic signalling
physical signalling according to the pilot function provided by IEC 61851-1, Annex A
3.6
Battery Management System
BMS
electronic device that controls or manages the electric and thermal functions of the battery system and
that provides communication between the battery system and other vehicle controllers
3.7
certificate
electronic document which uses a digital signature to bind a public key with an identity
Note 1 to entry: ISO 15118 describes several certificates covering different purposes (e.g. Contract Certificate
including the contract ID and OEM Provisioning Certificates)
3.8
charger
power converter that performs the necessary functions for charging a battery
3.9
charging control
function that confirms the maximum charge current which is allowed to be drawn from EVSE based on
charging schedule
Note 1 to entry: Actual charge current to the battery should be controlled by BMS. It is not in scope of ISO 15118.
3.10
charging scenario
combination of use case elements to fulfil a specific charging use case
3.11
charging schedule
scheme which contains the power limits for charging the EV for a specific time
Note 1 to entry: The EV should apply the negotiated limits as close as possible, to allow power balancing for the DSO
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EXAMPLE The schedule is calculated based on target setting, sales tariff table and grid schedule information,
respecting the corresponding current limitations, i.e. using the lowest current value.
3.12
charging session
time between the beginning (connection of the cable) and the end (disconnection of the cable) of a
charging process
Note 1 to entry: During a charging session the EV may have none, one, or many periods of charging the battery,
doing pre-conditioning or post-conditioning.
3.13
contactor
electrically controlled switch used for switching a power circuit
Note 1 to entry: Unlike a circuit breaker, a contactor is not intended to interrupt a short circuit current.
Note 2 to entry: As far as communication is concerned the contactor occurs as a trigger for the power supply.
3.14
contract ID
contract IDentification of the contract that is used by the SECC or secondary actor to enable charging
and related services (including billing)
Note 1 to entry: The contract ID is associated with the electricity consumer and may be vehicle-specific or
customer-specific. The customer can e.g. be the driver, the owner of the vehicle.
3.15
credential
document attesting the permission of the EV to be charged
3.16
demand and prognosis
function that covers the collection of grid and local installation limits which applies to the actual
charging process
EXAMPLE Sales tariff table containing a price, CO content and percentage of renewable energy information
2
vs. time based on grid, energy production, energy demand and customer contract information, along with an
optional contract-based current limitation. Grid schedule containing a current vs. time limitation at the specific
EVSE due to local installation and local electricity demand situation.
3.17
Demand Clearing House
DCH
entity for grid negotiation that provides information on the load of the grid
Note 1 to entry: The demand clearing house mediates between two clearing partners: a SECC and the part of the
power grid connected to this SECC. Most likely this function will be served by a system operator.
Note 2 to entry: Demand clearing house and meter operator may exchange information with each other as well as
with other actors.
EXAMPLE A DCH typically fulfils following tasks:
— Collect all necessary information from all parts of the power grid, e.g. current or forecasted load of
local transformers, distribution grid, power substation, transmission grid, transmission substation,
power plants (including renewable energies), and predicted charging schedules submitted by EVCCs.
— Consolidate the collected grid information to a “grid profile” and offer it to SECCs/EVCCs.
— Provide charging schedule proposal for the connected EV to the requesting SECC based on the
collected grid profile.
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— Inform the SECC as to the necessity for an updated charging schedule if the grid profile has changed.
— On the contrary, the SECC will inform the demand clearing house if the EV’s charging schedule has
changed.
3.18
departure time
point in time when the user intends to unplug the car and/or leave the charging location
3.19
Distribution System Operator
DSO
entity responsible for the voltage stability in the distribution grid (medium- and low-voltage power grid)
Note 1 to entry: Electricity distribution is the final stage in the physical delivery of electricity to the delivery point
(e.g. end user, EVSE or parking operator).
Note 2 to entry: A distribution system network carries electricity from the transmission grid and delivers it to
consumers. Typically, the network would include medium-voltage power lines, electrical substations and low-
voltage distribution wiring networks with associated equipment. Depending on national distribution regulations,
the DSO may also be responsible for metering the energy (MO).
3.20
E-Mobility Operator
entity with which the customer has a contract for all services related to the EV operation
Note 1 to entry: Typically the E-Mobility Operator will include some of the other actors, like spot operator or
Electricity Provider, and has a close relationship with the distribution system operator and meter operator. An
OEM or utility could also fulfil such a role.
Note 2 to entry: The E-Mobility Operator validates contract IDs from his customers, which were received either
from the E-Mobility Operator Clearing House, other E-Mobility Operators or spot operators he is in relation with.
Note 3 to entry: The E-Mobility Operator issues contract IDs to his customers.
3.21
E-Mobility Operator Clearing House
EMOCH
entity mediating between two clearing partners to provide validation services for roaming regarding
contracts of different E-Mobility Operators for the purpose of
— collecting all necessary contract information like contract ID, E-Mobility Operator, communication
path to E-Mobility Operator, roaming fees, begin and end date of contract, etc.,
— providing SECC with confirmation that an E-Mobility Operator will pay for a given contract ID
(authorization of valid contract),
— transferring a Service Detail Record (SDR) after each charging session to correct E-Mobility Operator
and Electricity Provider of the identified contract.
Note 1 to entry: E-Mobility Operator Clearing House, E-Mobility Operator and meter operator may exchange
information with each other as well as other actors.
3.22
Electric Energy Meter
EEM
equipment for measuring electrical energy by integrating power with respect to time, which complies
with IEC 62052-11 and IEC 62053-21, IEC 62053-52
Note 1 to entry: Some use cases need the amount of electric energy measured by the electric energy meter and
communicated through the SECC to the EVCC, while other scenarios do not need a separate electric energy meter.
The EV may get this information and use it according to the OEM’s intentions
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3.23
Electricity Provider
EP
body of secondary actor to provide electricity
3.24
Electric Vehicle
EV
any vehicle propelled by an electric motor drawing current from a rechargeable storage battery or
from other portable energy storage devices (rechargeable, using energy from a source off the vehicle
such as a residential or public electric service), which is manufactured primarily for use on public
streets, roads or highways
3.25
Electric Vehicle Communication Controller
EVCC
embedded system, within the vehicle, that implements the communication between the vehicle and the
SECC in order to support specific functions
Note 1 to entry: Such specific functions could be e.g. controlling input and output channels, encryption, or data
transfer between vehicle and SECC.
3.26
Electric Vehicle Supply Equipment
EVSE
conductors, including the phase(s), neutral and protective earth conductors, the EV couplers, attached
plugs, and all other accessories, devices, power outlets or apparatuses installed specifically for the
purpose of delivering energy from the premises wiring to the EV and allowing communication between
them as necessary
3.27
Electronic Control Unit
ECU
unit providing information regarding the vehicle
3.28
energy transfer type
element which allows the EV to select its desired energy transfer type in case both the EVSE and EV
support multiple charging types and different plugs and sockets according to IEC 62196
3.29
EVSE ID
unique identification of the charging spot
Note 1 to entry: The SECC provides the EVSE ID. This ID includes the EVSE operator ID and the power outlet ID,
issued by the EVSE operator.
3.30
EVSE operator
actor for managing and maintaining the charging spot
3.31
External Identification Means
EIM
any external means that enable the user to identify his contract or the car
EXAMPLE NFC, RFID, SMS.
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3.32
Fleet Operator
FO
person or legal entity operating several EVs and who may have the contracts with the E-Mobility Operator
3.33
grid schedule
function which sets the power level at a specific time based on the local grid situation
Note 1 to entry: Parameters to calculate grid schedule are e.g. local grid demand and supply situation, actual
and forecast.
3.34
High Level Communication
HLC
bi-directional digital communication using protocol and messages and physical and data link layers
specified in ISO 15118 series
Note 1 to entry: High Level Communication in ISO 15118 is compliant with the term digital communication in
SAE J1772/2836/2847/2931.
3.35
Human Machine Interface
HMI
interface allowing the vehicle user to receive information rela
...

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