We use cookies to give you the best experience and to help improve our website

Find out what cookies we use and how to disable them

ISO/TC 43/SC 1 N 2477, ISO/TS 13471-2 Acoustics - Temperature influence on tyre/road noise measurement - Part 2: Correction for temperature when testing with the pass-by methods

Scope

This document specifies correction procedures for the effect of temperature on vehicle noise emission, as influenced by the tyre/road noise contribution. Temperatures considered are road and ambient air temperatures.

The noise emission for which this document is applicable is measured by means of ISO 11819-1, or similar methods such as the American methods SIP and CTIM. It is also applicable to other pass-by measurements, such as when testing tyres and vehicles on test tracks with ISO 10844 reference surfaces.

Measurement results obtained at a certain temperature, which may vary over a wide range, are normalized to a designated reference temperature (20 °C) using a correction procedure specified in this document.

Purpose

The purpose of this procedure is to substantially reduce the uncertainty in coast-by, SPB and other pass-by noise measurements due to varying temperature.

Testing of road vehicles and/or their tyres as required by regulations suffer from uncertainties due to temperature influences.

A procedure is provided by which the uncertainties of testing noise emissions of road vehicles and/or their tyres can be substantially reduced.

A more accurate specification of noise emission of road vehicles and/or their tyres will bring value to the end-users.

Comment on proposal

Required form fields are indicated by an asterisk (*) character.


Please email further comments to: debbie.stead@bsigroup.com

Follow standard

You are now following this standard. Weekly digest emails will be sent to update you on the following activities:

You can manage your follow preferences from your Account. Please check your mailbox junk folder if you don't receive the weekly email.

Unfollow standard

You have successfully unsubscribed from weekly updates for this standard.

Error