ISO 7141:2022 PDF

Name: ISO 7141:2022 — Road vehicles — Light alloy wheels — Lateral impact test
SKU: ISO 7141:2022
Price: 25 EUR
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Road vehicles — Light alloy wheels — Lateral impact test

Название (английский):

ISO 7141:2022

Road vehicles — Light alloy wheels — Lateral impact test

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 1 апреля 2022 г.
Издание:: ISO IS 7141 edition 4 version 1
ICS:: 43.040.50

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Описание (английский):

This document specifies a laboratory test procedure to evaluate the axial (lateral) kerb impact collision properties of a wheel manufactured either wholly or partly of light alloys. It is intended for passenger car applications, and special vehicle applications where there is a possibility of the wheel impacting the kerb, with the purpose of screening and/or quality control of the wheel.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 7141:2022 - "Road vehicles - Light alloy wheels - Lateral impact test" defines a laboratory procedure to evaluate the axial (lateral) kerb-impact performance of wheels made wholly or partly of light alloys. Intended primarily for passenger cars and special vehicles where kerb contact is a possibility, the standard is used for screening and quality control of wheels to ensure safety and durability after lateral impacts.

Keywords: ISO 7141:2022, light alloy wheels, lateral impact test, kerb impact, wheel testing, quality control

Key topics and requirements

Scope and purpose: Laboratory test to assess wheel behaviour during an axial (lateral) kerb impact; aimed at passenger car applications and vehicle types exposed to kerb strikes.

Test specimen: New, fully processed wheels fitted with the tyre intended for vehicle use. Tyres and wheels used in the test shall not be re-used on vehicles.

Impact apparatus: Vertically acting steel striker (face plate) and an impact loading machine. Striker geometry and overlap are specified so the striker contacts the rim flange.

Striker mass and loading: Striker mass is determined from the wheel/vehicle maximum vertical static load (manufacturer-specified or, if absent, the tyre’s largest load rating). A 1 000 kg calibration mass is used for rig calibration.

Drop height and velocity calibration: Standard drop height is 230 ± 2 mm, with an allowable adjusted drop height (ADH) to compensate for machine friction. Velocity is verified using a gate/timing blade method; the gate time target is 12.31 ms ± tolerance (see Annex A guidance).

Mounting and environmental conditions: Wheel axis mounted at (13 ± 1)° to vertical, tyre inflation per manufacturer or 200 kPa if unspecified, and ambient temperature maintained between 10 °C and 30 °C.

Test procedure: Single-impact test with specific striker overlap (about 25 ± 1 mm onto rim flange). Re-test allowed only if secondary impacts (rebound or mass resting) invalidate the initial result.

Failure criteria: The wheel fails if any of the following occur:

Visible fracture(s) penetrating the wheel centre member,
Centre member separates from the rim,
Tyre loses all air pressure within 1 minute. Deformation or fractures localized to the rim area struck by the striker (outer rim horn) are not automatically considered failures.

Applications and users

ISO 7141:2022 is used by:

Wheel and tyre manufacturers for product development and production quality control.

Automotive OEMs and suppliers to validate wheel designs against kerb-impact hazards.

Test laboratories performing conformity testing and engineering validation.

Regulatory and safety engineers assessing wheel performance for vehicle certification or aftermarket wheel assessment.

Practical benefits include consistent, repeatable kerb-impact assessment, early detection of design weaknesses, and a harmonized test basis for supplier–OEM acceptance.

ISO 7141:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

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