PD ISO/TS 13471-2:2022

Acoustics. Temperature influence on tyre/road noise measurement. Correction for temperature when testing with the pass-by methods | Status: Confirmed, Current

1 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 specified in References [3][4]. It is also applicable to other pass-by measurements conducted without acceleration, such as when testing tyres and vehicles on test tracks with ISO 10844[1] reference surfaces; however, given that tyre/road noise is dominant. 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.