ISO 7635-2006 PDF

Full title and description

ISO 7635:2006 — Road vehicles — Air and air/hydraulic braking systems of motor vehicles, including those with electronic control functions — Test procedures. This International Standard specifies test methods and procedures for evaluating the performance and behaviour of air and air-over-hydraulic braking systems used on certain categories of motor vehicles, with requirements intended for use in type-approval, verification and laboratory testing contexts.

Abstract

ISO 7635:2006 defines test procedures for air or air-over-hydraulic braking systems of vehicles in categories M and N (excluding M1 and N1) built to comply with UN‑ECE Regulation 13/09 (including its supplements). The edition excludes test methods for lock actuators and for electrical regenerative braking systems of electric and hybrid vehicles.

General information

• Status: Published (confirmed in review cycles; remains current as the 2006 edition).
• Publication date: June 2006.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.40 (Brake systems for road vehicles).
• Edition / version: Edition 3 (2006).
• Number of pages: 40.

Key bibliographic and life‑cycle details above are taken from the ISO bibliographic record for ISO 7635:2006.

Scope

Specifies methods of testing air and air-over-hydraulic braking systems on vehicle categories M and N (except M1 and N1), intended for type-approval and performance evaluation when vehicles are built to comply with UN‑ECE Regulation 13/09 (including supplements). The standard covers static and dynamic tests, preparation and instrumentation requirements, response-time and performance checks, failure-mode simulations and recommended sequences of tests; it does not include procedures for lock actuators or electrical regenerative braking systems.

Key topics and requirements

• Definitions, symbols and general test conditions for braking performance measurements (static and dynamic).
• Preparation, instrumentation and static checks (including static braking force and control-force vs. line-pressure tests).
• Dynamic braking tests: deceleration measurements, stopping-distance and mean fully developed deceleration procedures.
• Failure-mode simulation and evaluation of system behaviour under fault conditions (pneumatic, hydraulic and electrical failures).
• Requirements for testing vehicles with electronic braking functions (EBS) and references to UN‑ECE Regulation 13 procedures where applicable.
• Recommended test sequences, re-test rules and reporting requirements for test conditions and unusual behaviour observations.

These topic summaries are based on the standard’s test‑procedure clauses and recommended test sequences.

Typical use and users

Used by vehicle manufacturers, braking-system suppliers and OEM test engineers for type‑approval and development testing; by independent test laboratories and certification bodies for verification and homologation; and by regulatory agencies and technical services that apply or reference UN‑ECE Regulation 13 for vehicle braking approvals. Researchers and consultants working on vehicle braking performance and safety use the standard as a reference for standardized test methods.

Related standards

Closely related documents include UN‑ECE Regulation 13/09 (braking of vehicles), and other ISO standards cited for related test methods and interfaces (for example ISO 21069 series for roller‑brake tester methods and various vehicle‑braking and connector standards such as ISO 7638 parts). Cross‑references and identical/adopted versions are listed in bibliographic catalogs and national adoptions.

Keywords

road vehicles; braking systems; air brakes; air-over-hydraulic; electronic braking systems (EBS); test procedures; type-approval; vehicle categories M and N; UN‑ECE R13.

FAQ

Q: What is this standard?

A: ISO 7635:2006 is an International Standard that specifies standardized test procedures for air and air-over-hydraulic braking systems of certain classes of motor vehicles.

Q: What does it cover?

A: It covers preparation, static and dynamic tests, instrumentation, response-time and performance checks, failure-mode simulations and recommended test sequences for braking systems on vehicle categories M and N (excluding M1 and N1) built to comply with UN‑ECE Regulation 13/09; it excludes tests for lock actuators and electrical regenerative braking systems.

Q: Who typically uses it?

A: Vehicle manufacturers, braking-component suppliers, independent test laboratories, type-approval and certification bodies, and regulatory technical services use it for development, verification and homologation testing.

Q: Is it current or superseded?

A: The 2006 edition (Edition 3) is published and was reviewed/confirmed in ISO’s review cycle (confirmed in 2020); it remains the current ISO edition as shown in the ISO record. Users should check national/adopted versions or subsequent ISO revisions if absolute up‑to‑date confirmation is required.

Q: Is it part of a series?

A: It is part of the body of ISO and UN‑ECE documents relating to vehicle braking systems and is cross‑referenced with related ISO standards (for example ISO 21069 series and other braking/connector standards) and UN‑ECE Regulation 13.

Q: What are the key keywords?

A: Road vehicles, air braking, air‑over‑hydraulic, electronic braking systems, test procedures, type‑approval, UN‑ECE R13.