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Transmitted by the WLTP UN GTR draft manager Informal document GRPE-67-07

Transmitted by the WLTP UN GTR draft manager Informal document GRPE-67-07 (67 th GRPE, 14 November 2013, agenda item 2). A new UN Global Technical Regulation on Worldwide harmonized Light vehicles Test Procedures (WLTP). Drafting the GTR: A Short History.

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Transmitted by the WLTP UN GTR draft manager Informal document GRPE-67-07

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  1. Transmitted by the WLTP UN GTR draft manager Informal document GRPE-67-07 (67th GRPE, 14 November 2013, agenda item 2) A new UN Global Technical Regulation on Worldwide harmonized Light vehicles Test Procedures (WLTP)

  2. Draftingthe GTR: A Short History • From January 2012: Document LabProcICE#112 was used as basis for the GTR. Numerous face-to-face meetings and audio/web conferences provided input to the GTR. • Late August 2013: A GTR representing the work of all sub-groups, Contracting Parties, and interested groups is sent to the UN-ECE. The UN-ECE reworks it into its standard format. • Early September 2013: Official working document ECE/TRANS/WP.29/GRPE/2013/13 is uploaded to the UN server and filed to the UN Document Management System. • September, October 2013: NumerousamendmentsaremadetoECE….2013/13. These amendments (seethenext 3 pages) arereflected in informal documentGRPE-67-04-Rev.1.

  3. Major amendmentsreceivedsincepublicationoftheofficialworkingdocument (page 1 of 2) • Annex 4 Road Load and Dynamometer Setting: inclusion of the torque-meter method of determining rolling resistance • Annex 4 Road Load and Dynamometer Setting: modification of the on-board anemometer-based coastdownmethod • Annex 4 Road Load and Dynamometer Setting: refining the wind conditions using stationary and on-board anemometry during coastdown tests • Annex 4 Road Load and Dynamometer Setting: introduction of a method to calculate default road loads • Annex 5 Test Equipment and Calibrations: reviewed in detail, modifications introduced

  4. Major amendmentsreceivedsincepublicationoftheofficialworkingdocument (page 2 of 2) • Annex 6 Type 1 Test Procedure and Test Conditions: modification of the use of automatic transmissions with respect to predominant modes • Annex 6, Appendix 1 Emissions test procedure for all vehicles equipped with periodically regenerating systems: reworking of the annex • Annex 7 Calculations: addition of fuel consumption equations to take fuels E0, E10, LPG, NG/biomethane, B0, B5, B7 and E85 into consideration • Annex 8 Pure and Hybrid Electric Vehicles: reworking of the annex • Annex 9 Determination of System Equivalence: placed in square brackets

  5. Other amendmentsreceivedsincepublicationoftheofficialworkingdocument • New and/or modified diagrams • Editorial changes (figure numbers, paragraph numbers, typographical mistakes, double words, punctuation, etc.)

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