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International
Standard
ISO 2958
Second edition
Road vehicles — Exterior protection
2024-07
for passenger cars
Véhicules routiers — Protection extérieure des voitures
particulières
Reference number
© ISO 2024
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ii
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
Foreword
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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
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
International Standard ISO 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 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/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
protective device
element located at the front or rear end of vehicles and designed to allow collision at low speed where the
vehicle is not heavily damaged
EXAMPLE
...