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Status report of the WLTP Informal Working Group Report to the 69th GRPE session

Status report of the WLTP Informal Working Group Report to the 69th GRPE session b y Stephan Redmann. WLTP IWG Meetings since last GRPE. 26-28 March 2014 6th WLTP IWG , Vienna, Austria  Minutes WLTP-06-33-rev1e 4th June 2014 7th WLTP IWG , Geneva , Switzerland

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Status report of the WLTP Informal Working Group Report to the 69th GRPE session

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  1. Status report ofthe WLTP Informal Working Group Report tothe 69th GRPE session by Stephan Redmann

  2. WLTP IWG Meetings since last GRPE 26-28 March 2014 6th WLTP IWG, Vienna, Austria MinutesWLTP-06-33-rev1e 4th June 2014 7th WLTP IWG, Geneva, Switzerland  MinutesWLTP-07-18e ContinouslyTask forcemeetings / telcos

  3. On-going work Phase 1B Open issueslist: WLTP-07-03e Key issues:Subgroup EV Utility Factors, phasespecificcalculationformula, shortenedtestprocedure Cycle / Process Downscaling, gearshifting , numberoftests Road & DynoLoad Determination Windtunnel method, torquemetermethod, on-board anemometry, defaultrunningresistances General Normalizationprocedures, draftingValidations/ Round Robin exercise

  4. Normalizationprocedures EU activity: Correction algorithms for variations in the WLTP testing • Chassis dynamometer test • Road load determination • (see intermediate report WLTP-07-05e) IWG #7: JapanandIndiaconfirmedinterest in harmonisationofprocedures in thegtr  Conclusion / furthersteps: - EC will lead WLTP taskforce- Interested CPs andotherstakeholdersareinvitedtoparticipate- Final reportavailable end ofJuly 2014- Clarificationoftechnicalquestionsuntil September 2014- Task Force will prepare a proposalfor IWG #8(packageofprocedures, work plan, incl. validation plan, ifnecessary)

  5. Coasting (sailing)(WLTP-07-13-rev1e) Japan: Concerns, currentlynosupport. EU: Concerns. No strong interesttoharmonizeprocedure,(EU applieseco-onnovationsconceptas alternative), but noobjectiontocontinuework. US: Derivation ofusagefactorscritical. India:Benefitsoftechnologyshould not bewasted. Support tocontinuework.  Conclusion: TF continue its work and try to address the concerns within the following frame: 1) No speed trace modification concept, systematic speed trace deviations shall be avoided Post-processing approach as basis, Bosch proposal should be the starting point . 2) Focus on technical aspects first  define procedure 3) Usage factors might be regional option. High riskthat Task Force won‘tbeabletoprovide an acceptableproposal!

  6. Additional temperaturecorrectiontest (ATCT): IWG #6: • IndiaandJapanobjected to implement the test in the gtr • EC confirmed that this test will become a regional requirement in Europe  Conclusion: IWG closedissue, placeholder will beremovedfromgtr Corrigendumgtrno. 15 DraftingCoordinatorreportedmanynecessarycorrectionstogtrno. 15 (seecurrentgtrdraftWLTP-07-04e)  Proposal:NoCorrigendum, introductionof all correctionstogetherwithotheramendmentsatthe end ofphase 1b

  7. WLTP Phase 1b Roadmap 2014 2015 2016 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 Phase2 ToR WP.29 GRPE WLTP 167 168 169 68 69 70 71 72 73 gtr formal document gtr informal document Slight modification 14 13 12 5 6 7 8 9 11 10 Phase2 Fix organization, responsibilities and time schedule Round Robin

  8. Next WLTP IWG meetings • 2014: Oct./Nov. - IWG #8, India • 2015: January - IWG #9, Geneva (GRPE) • April - IWG #10, Sweden • June - IWG #11, Geneva (GRPE) • September - IWG #12, Japan

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