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Document Title Highlights related to ECE/TRANS/WP.29/GRPE/2017/3 on WLTP EVAP
Reference Number GRPE-74-10
Date
12 Jan 2017
Summary Pursuant to the development of a GTR on evaporative emissions under the WLTP informal group, ETRMA presents its views on the draft procedure in order to clarify the role of tyres.
Source(s) ETRMA
Rulemaking Area(s) GTR No. 19 Evaporative emissions
Meeting(s)
Related Documents
GRPE/2017/3 Proposal for a new GTR on evaporative emissions test procedures under the Worldwide harmonized Light vehicles Test Procedure (WLTP EVAP) (superseded)
Downloads
UNECE server .pdf format .docx format
Excerpts from session reports related to this document
GRPE | Session 74 | 10-13 Jan 2017

17. The expert from EC presented ECE/TRANS/WP.29/GRPE/2017/3 on a draft new GTR on evaporative emission test procedure for WLTP (WLTP EVAP). He clarified that the current proposal focuses on the evaporative emissions that can occur during parking events, so running losses and refuelling emissions are out of the scope for the time being. He explained that the test procedure for sealed fuel tank systems will be introduced at a later stage. He introduced the technical report on the development of the draft new GTR (GRPE-74-04).

18. The expert from ETRMA presented GRPE-74-10 to highlight that emissions from tyres should be excluded from the test procedure in the draft new GTR on WLTP EVAP. He explained that tyres should be removed at the stage of vehicle preparation, since they are not part of the fuel storing system and they may add some uncertainty to the test.

19. GRPE adopted ECE/TRANS/WP.29/GRPE/2017/3 and requested the secretariat to submit it to WP.29 and AC.3 for consideration and vote at their June 2017 sessions as a new draft GTR on evaporative emission test procedure for WLTP (WLTP EVAP). GRPE also adopted the technical report (GRPE-74-04) as reproduced in Addendum 2 to this report and requested the secretariat to submit it to WP.29 and AC.3 for consideration and vote at their June 2017 sessions.