Electrically propelled road vehicles -- Vocabulary

ISO/TR 8713:2012 establishes a vocabulary of terms and the related definitions used in ISO TC22/SC21 standards. These terms are specific to the electric propulsion systems of electrically propelled road vehicles, i. e. battery electric vehicles (BEV), hybrid electric vehicles (HEV, PHEV), and (pure and hybrid electric) fuel cell vehicles (FCV, FCHEV).

Véhicules routiers électriques -- Vocabulaire

General Information

Status
Replaced
Publication Date
24-Apr-2012
Withdrawal Date
24-Apr-2012
Current Stage
6060 - International Standard published
Start Date
04-Apr-2012
Completion Date
25-Apr-2012
Ref Project

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TECHNICAL ISO/TR
REPORT 8713
First edition
2012-05-01
Electrically propelled road vehicles —
Vocabulary
Véhicules routiers électriques — Vocabulaire
Reference number
ISO/TR 8713:2012(E)
ISO 2012
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ISO/TR 8713:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

The reproduction of the terms and definitions contained in this International Standard is permitted in teaching manuals, instruction

booklets, technical publications and journals for strictly educational or implementation purposes. The conditions for such reproduction are:

that no modifications are made to the terms and definitions; that such reproduction is not permitted for dictionaries or similar publications

offered for sale; and that this International Standard is referenced as the source document.

With the sole exceptions noted above, no other part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

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Published in Switzerland
ii © ISO 2012 – All rights reserved
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ISO/TR 8713:2012(E)
Contents Page

Foreword ............................................................................................................................................................ iv

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

2 Terms and definitions ................................................................................................................................. 1

Annex A (informative) Examples of propulsion systems for electrically propelled vehicles ..................... 8

Bibliography ...................................................................................................................................................... 10

© ISO 2012 – All rights reserved iii
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ISO/TR 8713:2012(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.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

In exceptional circumstances, when a technical committee has collected data of a different kind from that

which is normally published as an International Standard (“state of the art”, for example), it may decide by a

simple majority vote of its participating members to publish a Technical Report. A Technical Report is entirely

informative in nature and does not have to be reviewed until the data it provides are considered to be no

longer valid or useful.

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.

ISO/TR 8713 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 21,

Electrically propelled road vehicles.

This first edition cancels and replaces the second edition (ISO 8713:2005) which has been revised as a

Technical Report.
iv © ISO 2012 – All rights reserved
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TECHNICAL REPORT ISO/TR 8713:2012(E)
Electrically propelled road vehicles — Vocabulary
1 Scope

This Technical Report establishes a vocabulary of terms and the related definitions used in ISO/TC 22/SC 21

standards. These terms are specific to the electric propulsion systems of electrically propelled road vehicles,

i.e. battery-electric vehicles (BEV), hybrid-electric vehicles (HEV, PHEV), and (pure and hybrid-electric) fuel

cell vehicles (FCV, FCHEV).
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
air processing system
system that processes the incoming air for the fuel cell system
EXAMPLE Filters, meters, conditions, and pressurizes.
2.2
auxiliary electric system

on-board vehicle system, other than the propulsion system, which operates on electric energy

2.3
balance of electric power system

remaining portion of a voltage class B (2.72) electric circuit when all RESS (2.61) and fuel cell stacks are

disconnected
2.4
barrier

part providing protection against direct contact from any usual direction of access

2.5
basic insulation

insulation applied to live parts for protection against direct contact under fault-free conditions

NOTE Basic insulation does not include insulation used exclusively for functional purposes.

2.6
basic protection
protection against direct contact with live parts under fault-free conditions
2.7
battery cell

basic rechargeable energy storage device, consisting of electrodes, electrolyte, container, terminals and

usually separators, that is a source of electric energy obtained by direct conversion of chemical energy

© ISO 2012 – All rights reserved 1
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ISO/TR 8713:2012(E)
2.8
battery control unit
BCU

electronic device that controls or manages or detects or calculates electric and thermal functions of the battery

system and that provides communication between the battery system and other vehicle controllers

2.9
battery-electric vehicle
BEV

electrically propelled vehicle with only a traction battery as power source for vehicle propulsion

NOTE The abbreviation BEV is often shortened to EV.
2.10
battery pack

mechanical assembly comprising battery cells and retaining frames or trays, and possibly components for

battery management
2.11
battery system

energy storage device that includes cells or cell assemblies or battery pack(s) as well as electrical circuits and

electronics, e.g. BCU (2.8), contactors

NOTE Battery system components can also be distributed in different devices within the vehicle.

2.12
capacity

total number of ampere-hours that can be withdrawn from a battery under specified conditions

2.13
cell electronics

electronic device that collects and possibly monitors thermal and electric data of cells or cell assemblies and

contains electronics for cell balancing, if necessary

NOTE The cell electronics may include a cell controller. The functionality of cell balancing may be controlled by the cell

electronics or it may be controlled by the BCU (2.8).
2.14
charge balance of battery
change of charge in battery during fuel consumption measurement
NOTE Normally expressed in Ah.
2.15
charger

set of equipment to condition the power of the external electric energy source for charging the RESS (2.61)

2.16
clearance
shortest distance in air between conductive parts (2.17)
2.17
conductive part
part capable of conducting electric current
2.18
coulomb efficiency
Ah efficiency

efficiency of the battery based on electricity (Coulomb) for a specified charge/discharge procedure, which is

expressed by output electricity divided by input electricity
2 © ISO 2012 – All rights reserved
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ISO/TR 8713:2012(E)
2.19
creepage distance

shortest distance along the surface of a solid insulating material between two conductive parts (2.17)

2.20
direct contact
contact of persons with live parts
2.21
double insulation
insulation comprising both basic insulation and supplementary insulation
2.22
driving enabled mode
the only mode in which the vehicle can be moved by its own propulsion system(s)
2.23
electric chassis

conductive mechanical structure of the vehicle whose potential is taken as reference

2.24
electric drive

combination of traction motor, power electronics and their associated controls for the conversion of electric to

mechanical power and vice versa
2.25
electric power train
power train, consisting of electric drive (2.24) and drive train
2.26
electric shock

physiological effect resulting from an electric current passing through a human body

2.27
electrically propelled vehicle
vehicle with at least one electric drive (2.24) for vehicle propulsion
2.28
enclosure
part providing protection of equipment against direct contact from any direction
2.29
energy balance of battery
change of energy in battery during fuel consumption measurement
NOTE 1 Normally expressed in Wh.

NOTE 2 For practical use, the following is an approximate definition: charge balance of battery multiplied by the nominal

voltage, normally expressed in Wh.
2.30
energy density
amount of stored energy related to the battery pack (2.10) or system volume
NOTE 3 Expressed in Wh/l.

NOTE 4 The battery pack or system includes the cooling system, if any, to the point of a reversible attachment of the

coolant lines or air ducts, respectively.
© ISO 2012 – All rights reserved 3
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ISO/TR 8713:2012(E)
2.31
energy efficiency
Wh efficiency

efficiency of the battery based on energy, for a specified charge/discharge procedure, which is expressed by

output energy divided by input energy
2.32
exposed conductive part

conductive part (2.17) of the electric equipment that can be touched by an IPXXB test finger after removing

barriers/enclosures which can be removed without using tools and which is not normally live, but which may

become live under fault conditions
NOTE For the specification of the IPXXB test finger, see ISO 20653.
2.33
excess flow valve
valve which automatically shuts off, or limit
...

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