ISO 17269:2000

Name: ISO 17269:2000 — Passenger car tyres — Methods for measuring rolling circumference — Loaded new tyres
SKU: ISO 17269:2000
Price: 25 EUR
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Passenger car tyres — Methods for measuring rolling circumference — Loaded new tyres

Название (английский):

ISO 17269:2000

Passenger car tyres — Methods for measuring rolling circumference — Loaded new tyres

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 7 декабря 2000 г.
Издание:: ISO IS 17269 edition 1 version 1
ICS:: 83.160.10

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Описание (английский):

This International Standard specifies two methods for measuring, under loaded conditions, the rolling circumference and revolutions per unit distance (kilometres) of new tyres for use on passenger cars. The first is a drum method that consists of loading a test tyre mounted on a free axle against a driven road wheel, or drum, of specified diameter. The second involves using a vehicle whose drive axle is equipped with the test tyres driven on a straight, paved road. This International Standard is applicable to all passenger car tyres. However, the values obtained from the measurements are not intended to be used as benchmarks for performance or quality.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 17269:2000 - "Passenger car tyres - Methods for measuring rolling circumference - Loaded new tyres" describes standardized laboratory and on-road procedures to measure the rolling circumference and revolutions per unit distance of new passenger‑car tyres under loaded conditions. The document defines two complementary methods: a controlled drum method (tyre pressed against a driven road drum) and a vehicle test method (drive-axle tyres driven over a measured straight road). Results are intended for measurement consistency and correlation, not as performance or quality benchmarks.

Key topics and technical requirements

Two test methods

Drum method: test tyre mounted on a free axle is loaded against a driven drum (minimum diameter 1.20 m). Drum surface should be smooth steel (textured surfaces must be reported). Drum width must exceed tyre tread width.
Vehicle method: representative vehicle fitted with test tyres on the drive axle is driven at constant speed on a straight, level paved course (preferably 500 m).

Test conditions

Preferred thermal environment ~25 °C (acceptable 20–30 °C for drum; 5–30 °C for vehicle).
Test speed reference 80 km/h (vehicle method allows ±2 km/h).
Road/course limits: max longitudinal and transverse gradient 1 %; wind ≤ 7 m/s.

Measurement accuracy and instrumentation

Minimum impulse resolution: drum method ≥10 impulses/rev; vehicle method ≥16 impulses/rev.
Total impulses per measurement >1 000 (drum); counting error ≤0.1 % (vehicle).
Alignment tolerances: slip angle within 3 mrad; camber within 10 mrad.

Tyre loading and inflation

Load = 80 % of tyre load capacity (based on load index) applied to drive axle (±2 % for vehicle).
Inflation pressure = reference pressure minus 30 kPa (reference from ISO 4000-1 or manufacturer).

Procedures and repeatability

Break-in conditioning (drum: ≥1 h at 80 km/h; vehicle: ≥0.5 h) and specified warm-up/cooling periods.
Vehicle tests require multiple runs in both directions and repeat if runs differ beyond 0.2 %.

Annex A tolerances

Example equipment tolerances: tyre load ±50 N, pressure ±5 kPa, surface velocity ±0.5 km/h, drum measurement ±1 mm, angular velocity ±0.2 %.

Applications and users

ISO 17269:2000 is used by:

Tyre manufacturers and R&D labs for consistent measurement of rolling circumference.

Independent test laboratories seeking repeatable, comparable results across facilities.

Vehicle manufacturers and technical teams correlating tyre characteristics with vehicle systems.

Regulatory and standards bodies referencing standardized measurement procedures.

The standard supports laboratory ↔ road correlation (it includes empirical correction formulas) and provides repeatable methods for engineering, validation, and comparative testing.

ISO 17269:2000

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

BS ISO 4000-1:2024

Passenger car tyres and rims. Tyres (metric series).

ISO 10191:2010

Passenger car tyres — Verifying tyre capabilities — Laboratory test methods

BS ISO 4223-1:2017

Definitions of some terms used in the tyre industry. Pneumatic tyres.