Proposed Coastdown Wind Speed Requirement Updates for WLTP
Reference Number: WLTP-20-15/App.10
Presentation in favor of better defining the coastdown wind speed validation requirements of the current GTR:
The cross wind requirements do not specify whether it should be applied to an average or peak measurement
The procedure for calculating an average wind value is not adequately defined
For on-board anemometry, the peak wind measurement is not specified with any filtering (only single point measurement) which may result in unnecessary test voids.
Working draft of the amended GTR No. 15 as of 10 September 2017
Reference Number: WLTP-20-19/Rev.1
Consolidated text of the regulation, including Amendment 3, as developed by the Informal Working Group (IWG) on Worldwide harmonized Light vehicles Test Procedure (WLTP) under “Phase 2” of its mandate.