ISO 2958
(Main)Road vehicles — Exterior protection for passenger cars
Road vehicles — Exterior protection for passenger cars
This document specifies the requirements and test methods for exterior protection for passenger cars. This document applies to passenger cars. The aim is to provide protection at the front and rear of the vehicle, of certain mechanical elements and, above all, for lighting, signals, charging ports and sensors (arranged at the front and rear of the vehicle and including but not limited to those used for automatic driving system, e.g. LiDAR, radar, camera) in cases of collision at low speed. Exterior protection is assured by protective devices, which are elements located at the front and rear ends of vehicles and designed in such a way as to allow contacts and small shocks to occur without causing any serious damage.
Véhicules routiers — Protection extérieure des voitures particulières
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FINAL DRAFT
International
Standard
ISO/FDIS 2958
ISO/TC 22
Road vehicles — Exterior protection
Secretariat: AFNOR
for passenger cars
Voting begins on:
Véhicules routiers — Protection extérieure des voitures 2024-05-01
particulières
Voting terminates on:
2024-06-26
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WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
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IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 2958:2024(en) © ISO 2024
FINAL DRAFT
ISO/FDIS 2958:2024(en)
International
Standard
ISO/FDIS 2958
ISO/TC 22
Road vehicles — Exterior protection
Secretariat: AFNOR
for passenger cars
Voting begins on:
Véhicules routiers — Protection extérieure des voitures
particulières
Voting terminates on:
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 SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 2958:2024(en) © ISO 2024
ii
ISO/FDIS 2958:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test condition . 3
4.1 Test site .3
4.2 Vehicle status .3
4.3 Impactor .4
4.4 Propulsion of the impactor .4
4.5 Special provisions applicable where a pendulum used .4
4.6 Special provisions applicable where a moving barrier used .4
5 Test method . 4
5.1 Longitudinal-impact test .4
5.2 Corner-impact test .5
6 Conditions of repair and replacement . 5
7 Requirements . 5
iii
ISO/FDIS 2958:2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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 www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles.
This second edition cancels and replaces the first edition (ISO 2958:1973), which has been technically
revised.
The main changes are as follows:
— added the definition of protective devices;
— modified the definition of the vehicle corner and added Figure 2;
— added requirements for front and rear protective devices and their covered structures;
— added requirements for cameras and sensors installed on the front and rear protective device.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
ISO/FDIS 2958:2024(en)
Introduction
This document was developed to define a general test for exterior protection for passenger cars. This
document mainly revises ISO 2958:1973. With the advancement of technology, emerging components
such as sensors, radars and cameras have been equipped with front- and rear-end protection devices for
automobiles, which have caused significant changes in the car body structure and have put forward higher
technical requirements for the front- and rear-end protection devices. At present, the concept and structure
of the bumper device is significantly different to 1973. Therefore, this document extends the definition of
the bumper and related technical requirements.
v
FINAL DRAFT International Standard ISO/FDIS 2958:2024(en)
Road vehicles — Exterior protection for passenger cars
1 Scope
This document specifies the requirements and test methods for exterior protection for passenger cars. This
document applies to passenger cars.
The aim is to provide protection at the front and rear of the vehicle, of certain mechanical elements and,
above all, for lighting, signals, charging ports and sensors (arranged at the front and rear of the vehicle and
including but not limited to those used for automatic driving system, e.g. LiDAR, radar, camera) in cases of
collision at low speed.
Exterior protection is assured by protective devices, which are elements located at the front and rear ends
of vehicles and designed in such a way as to allow contacts and small shocks to occur without causing any
serious damage.
2 Normative references
The following documents are referred 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 unda
...
ISO/FDIS 2958:2023(E)
ISO/TC 22
Secretariat: AFNOR
Date: 2024-0204-16
Road vehicles — Exterior protection for passenger cars
Véhicules routiers — Protection extérieure des voitures particulières
FDIS stage
ISO/DISFDIS 2958:2023(E2024(en)
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: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ii
ISO/DISFDIS 2958:2023(E2024(en)
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test condition . 3
5 Test method . 4
6 Conditions of repair and replacement . 5
7 Requirements . 5
iii
ISO/DISFDIS 2958:2023(E2024(en)
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test condition . 5
4.1 Test site . 5
4.2 Vehicle status . 5
4.3 Impactor . 6
4.4 Propulsion of the impactor . 6
4.5 Special provisions applicable where a pendulum used . 6
4.6 Special provisions applicable where a moving barrier used . 6
5 Test method . 6
5.1 Longitudinal-impact test . 6
5.2 Corner-impact test . 7
6 Conditions of repair and replacement . 7
7 Requirements . 8
iv © ISO 2023 – All rights reserved
iv
ISO/DISFDIS 2958:2023(E2024(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights
in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s)
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents.www.iso.org/patents. ISO shall not be held responsible for identifying any or all such
patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of 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
www.iso.org/iso/foreword.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles.
This second edition cancels and replaces the first edition (ISO 2958:1973), which has been technically revised.
The main changes are as follows:
— — added the definition of protective devices;
— — modified the definition of the vehicle corner and added Figure 2;Figure 2;
— — added requirements for front and rear protective devices and their covered structures;
— — added requirements for cameras and sensors installed on the front and rear protective device.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.htmlwww.iso.org/members.html.
v
ISO/DISFDIS 2958:2023(E2024(en)
Introduction
This document was developed to define a general test for exterior protection for passenger cars. This
document mainly revises ISO 2958:1973. With the advancement of technology, emerging components such as
sensors, radars and cameras have been equipped with front- and rear-end protection devices for automobiles,
which have caused significant changes in the car body structure, and have put forward higher technical
requirements for the front- and rear-end protection devices. At present, the concept and structure of the
bumper device is significantly different from that into 1973. Therefore, this document extends the definition
of the bumper and related technical requirements.
vi © ISO 2023 – All rights reserved
vi
DRAFT INTERNATIONAL STANDARD ISO/DIS 2958:2023(E)
Road vehicles — Exterior protection for passenger cars
1 Scope
This document specifies the requirements and test methods for exterior protection for passenger cars. This
document applies to the passenger cars.
The aim is to provide protection at the front and rear of the vehicle, of certain mechanical elements and, above
all, for lighting, signals, charging portports and sensors (arranged at the front and rear of the vehicle and
including but not limited to those used for automatic driving system, e.g. LiDAR, radar, camera) in cases of
collision at low speed.
Exterior protection is assured by protective devices, which are essentially elements located at the front and
rear ends of vehicles and designed in such a way as to allow contacts and small shocks to occur without causing
any serious damage.
2 Normative references
The following documents are referred 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.
ISO 1176, Road vehicles — Masses — Vocabulary and codes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1176 and the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
3.1
protective device
element located at the front or rear end of vehicles and designed in such a way as to allow collision at low
speed where the vehicle wouldis not be heavily damaged
EXAMPLE Bumper cover and its fixings, foam parts, beams and connections, tail end plate, longitudinal beams and
energy-absorbing components, and as well as other components installed on the bumper cover.
3.2
unladen weight
weight of the vehicle in running order, unoccupied and unladen but complete with fuel, coolant, lubricant,
tools and a spare wheel (if provided as standard equipment by the vehicle manufacturer)
ISO/DISFDIS 2958:2023(E2024(en)
3.3
laden test weight
vehicle unladen weight (3.2)(3.2) plus the weight of the occupants specified in Table 1Table 1 (each occupant
is calculated at 75 kg)
Table 1 — Allocation of occupant
Seat number Occupant number Mode of allocation
2 and 3 2 2 seated in front row outside
2 seated in front row outside
4 and 5 3
1 seated in rear row outside
2 seated in front row outside
6 and 7 4
2 seated in 2nd row outside
2 seated in front row outside
8 and 9 5 2 seated in 2nd row outside
1 seated in rearmost row outside
3.4
reference line
intersection line between the horizontal symmetrical plane of the impactor head and the profile of the
impactor head itself when the plane A of the impactor is perpendicular to the floor
Note 1 to entry: See Figure 1.Figure 1.
2 © ISO 2023 – All rights reserved
ISO/DISFDIS 2958:2023(E2024(en)
Units in millimetres
Key
1 Reference line
2 Plane A
3 Impact profile
ISO/DISFDIS 2958:2023(E2024(en)
Key
1 reference line
2 plane A
3 impact profile
Figure 1 — Impactor
3.5
reference height
vertical distance between the horizontal plane passing through the impactor reference line (3.4)(3.4) and the
horizontal ground
3.6
corner of bumper
vehicle contact point where the impactor is at a reference height (3.5)(3.5) of 445 mm, the profile of the
impactor is at an angle of 60° to the vertical plane of the vehicle's longitudinal centre when the vehicle
suspension is in the design state specified by the manufacturer
Note 1 to entry: If there are multiple contact points, the point with the farthest distance from the vertical plane of the
vehicle's longitudinal centre is taken as the contact point.
Note 2 to entry: See Figure 2.Figure 2.
4 © ISO 2023 – All rights reserved
ISO/DISFDIS 2958:2023(E2024(en)
Key
1 contact point
Figure 2 — Corner of bumper
4 Test condition
4.1 Test site
The test site shall be large enough for the setup of the impactor’s driving system, skidding of the vehicle after
being impacted and the mounting of test equipment. The ground to place the test vehicle shall be level, firm,
smooth and horizontal.
4.2 Vehicle status
4.2.1 The vehicle shall stand still.
4.2.2 The front wheels shall be in the straight-facing position.
4.2.3 The tires shall be inflated to the pressure specified by the manufacturer.
4.2.4 The brakes shall be released with the gearbox in the neutral position.
4.2.5 As for the vehicles fitted with oil-pneumatic suspension, hydraulic or air suspension, or automatic
levelling suspension (intended for automati
...
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