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Status report of the WLTP Informal Group Report to GRPE No . 68 b y Stephan Redmann

Status report of the WLTP Informal Group Report to GRPE No . 68 b y Stephan Redmann. WLTP IG Meetings. June 2008 – Jan. 2010 1st – 4th WLTP IG meeting 2010 – 2013 WLTP IG was inactive 8th January 2014 5th WLTP IG meeting  Start of WLTP Phase 1B . Status of WLTP Phase 1.

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Status report of the WLTP Informal Group Report to GRPE No . 68 b y Stephan Redmann

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  1. Status report ofthe WLTP Informal Group Report to GRPE No. 68 by Stephan Redmann

  2. WLTP IG Meetings June 2008 – Jan. 2010 1st – 4th WLTP IG meeting 2010 – 2013 WLTP IG was inactive 8th January 20145th WLTP IG meeting Start of WLTP Phase 1B

  3. Status of WLTP Phase 1 67th GRPE: Working document GRPE/2013/13 amendedby(11/2013) Informal document GRPE-67-04-Rev.1  WLTP Phase 1A 162th WP.29: 1) Adoption of Phase 1A gtrdocuments (03/2014) 2) Technical reports 3) Mandate for WLTP Phase 1B

  4. 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

  5. WLTP Phase 1b Organization(WLTP-05-03) WLTP Informal Group Chair : Redmann Vice Chair : KOBAYASHI Co-TSs: ICHIKAWA / Kolesa Drafting Coord.: Dubuc Task Forces IG designates responsible CPs/Individual expert for each open task. Co-Chairs: Ohlund / NIIKUNI Co-TS: ICHIKAWA / Hartmann E-Lab. Sub-group

  6. Open issues Phase 1B Open issueslist: WLTP-05-04 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, Ambienttemp. correctiontestValidations/ Round Robin exercise

  7. Parallel activitiesofthe European Union in 2014: • Normalizationprocedures(WLTP-05-13)Correction algorithms for variations in the WLTP testing 1) Chassis dynamometer test (vehicle state, test execution, meas. Equipm.)2) Road load determination (coast-down test: ambient conditions, vehicle state, test execution, test circuit)Draft report on 21 methods: end January 2014, discussions on EU implementation in 2014Interest of CPs to harmonize these procedures (partly) in Phase 1B?  Feedback requesteduntil14th February 2014.

  8. AmbientTemperatureCorrection Test (WLTP-05-14)Method already discussed and drafted in Phase 1AValidation of family concept is on-going, participation of CPs welcomed • Utility Factors (EV vehicles)Current gtr: regional UFs. EU develops revised UFs to improve representativeness, including the methodology to develop UF.

  9. Next meetings • Preparatory Telephone/Web Conference, 2 weeks in advance of each IG meeting • 6th WLTP IG Meeting, Vienna, Austria3 day meeting, end March / beginning April 2014 (date tbc) • 7th WLTP IG Meeting, Geneva June 2014, preceding GRPE (date tbc)

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