| previous meeting | next meeting |
| 1. | Welcome and organization | ||
| 2. | Adoption of the agenda and approval of previous session report |
WLTP-07-18 | Draft minutes of the 7th WLTP informal working group session
WLTP-08-02/Rev.3 | Draft agenda for the 8th WLTP informal working group session (Revision 3)
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| 3. | Open issues table |
WLTP-08-03 | WLTP Phase 1b open issues status sheet
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| 4. | Report from Subgroup EV (Annex 8) |
WLTP-SG-EV-06-11 | WLTP: RCB correction for (N-)OVC-HEV charge sustaining test (Open issue no. 50)
WLTP-SG-EV-06-03/Rev.1 | Phase-specific calculation for PEV range (revised)
WLTP-SG-EV-06-04/Rev.1 | WLTP: ACEA input on EV consumption and range values Combined Approach
WLTP-SG-EV-06-05 | WLTP EV: Japan positions on open issues 2&56: FC/CO2 Family and Combined Approach
WLTP-SG-EV-06-07/Rev.1 | WLTP: PEV Range test procedure-End of test criteria
WLTP-SG-EV-06-08 | WLTP: Proposal on Determination of Powertrain Performance of Hybrid Electric Vehicles
WLTP-SG-EV-06-12 | WLTP: Fractional utility factors
WLTP-SG-EV-06-15 | WLTP: Japan comments on utility factor for off-vehicle charging of hybrid electric vehicles
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| 5. | Main part & Cycle issues (Annex 1 & 2) |
WLTP-08-10 | Modifications to the WLTP calculation parameter coefficients (Open issue item 5)
Proposal for modifications to the calculation parameter/coefficients r<sub>0</sub>, a<sub>1</sub> and b<sub>1</sub> prepared by the WLTP downscaling issues task force.
WLTP-08-11 | WLTP use of the gearbox: required data (Open issue item 6)
Open issue 6 "Use of the gearbox, required data" concerns the following:<ul><li>modification of the definition of n<sub>min_drive</sub> to make it more appropriate for modern engines and to make manipulations more difficult.</li><li>Addition of n<sub>max</sub> to section 2 and amendment of required data because the current definition is not appropriate for low powered vehicles.</li><li>Replacement of P<sub>normwot</sub>(n<sub>norm i, j</sub>) in Section 2 (i) by P<sub>wot</sub>(n<sub> i, j</sub>) because there is no need for the normalisation.</li></ul>
WLTP-08-12 | WLTP: Use of the gearbox, auwiliary gearboxes, exception of crawler gear (Open issue item 6)
Proposal to add requirements, address vehicles with a two-range transmission (low and high), and introduce the possibility to exclude crawler gears from the gear use calculation. The presentation proposed to add a provision: "For vehicles equipped with a two range transmission (low and high), only the range designed to normal on road operation is considered for the gear use determination."
WLTP-08-13 | WLTP: Determination of engine speeds and calculation of available power (Open issue item 6)
Proposals to clarify and focus the text on engine speeds and to address requests for an additional safety margin in the full load power curve at certain engine speed sections.
WLTP-08-14/clean | WLTP: Revised text for Annex 2 (Open issue item 6)
Clean copy of the proposal for a "fundamentally amended" version of Annex 2 in GTR No. 15.
WLTP-08-15 | WLTP: Replace 3 s rule by 2 s rule (Open issue item 8)
WLTP-08-16 | WLTP: Gearshift family criteria (Open issue item 9)
Proposal to dispense with this criteria in the WLTP test procedure.
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| 6. | RLD & dyno setting (Annex 4) |
WLTP-08-17/Rev.1 | WLTP: Progress report on Annex 4 (Road Load Determination)
WLTP-08-18 | WLTP: handling of tyre rolling resistances for the combined approach
WLTP-08-20 | Road load family draft (Open issue item 1b-2)
WLTP-08-21 | WLTP Annex 4 and 7, Delta Cd*Af: Alternative Cd*Af determination methods
WLTP-08-23 | WLTP RLD with chassis dyno plus wind tunnel validation program
WLTP-08-24 | WLTP wind tunnel method: Requirements for flat belt
Input for open issue items 10 and 18.
WLTP-08-25 | WLTP wind tunnel method: draft GTR provisions
WLTP-08-22 | WLTP: RLD with flatbelt/dyno plus wind tunnel method status report
WLTP-08-26 | WLTP: Hybrid vehicle default road load method
WLTP-08-28 | WLTP: Proposal for reference speeds (version 3)
Final proposal of the Speed Points (OIL #12, #21) drafting group.
WLTP-08-29/Rev.1 | WLTP: Alternative warm-up procedure (Open issue 19)
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| 7. | Test equipment and calibrations (Annex 5) |
WLTP-08-05 | WLTP: Requirements for 4WD dynamometers (Open issue item 23)
WLTP-08-30 | WLTP: Starting note for open issue items 24-26
Initial comments concerning the chassis dynamometer calibration, force transducer and dynamometer parasitic loss calibrations, measurement equipment, and force measurement system under GTR No. 15.
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| 8. | Test procedure and conditions (Annex 6) |
WLTP-08-31 | WLTP: Number of tests (Open issue item 27)
WLTP-08-43 | WLTP: Proposal on number of tests
WLTP-08-32 | Progress report of the WLTP task force on the coasting method
WLTP-08-32/Annex.1 | Bosch proposal to the Coasting Method WLTP Task Force (Annex to the task force progress report)
WLTP-08-33 | WlTP: Handling of Ki (Open issue items 34-38)
Proposals from the task force assigned to consider these open issues.
WLTP-08-34 | WLTP: Vehicle temperature in test cell for Type I tests
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| 9. | Calculations (Annex 7) |
WLTP-08-06/Rev.1 | WLTP: Willans factors for petrol (E10) & diesel (B7) (Open issue item 42)
WLTP-08-07 | WLTP: Fuel consumption calculation for ICE vehicles (Open issue item 43)
WLTP-08-08 | WLTP: Fuel consumption interpolation method (Open issue item 47)
WLTP-08-35 | WLTP: CO2 calculation method (Open issue item 49)
ACEA recommendation concerning the calculation of the CO2 value for an individual vehicle by the CO2 interpolation method (No addition of Matlab formulae in the GTR.)
WLTP-08-38 | EC cover note accompanying the draft TNO WLTP correction algorithms report
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| 10. | Normalization procedures (OIL #48) |
WLTP-08-38 | EC cover note accompanying the draft TNO WLTP correction algorithms report
WLTP-08-46 | WLTP: BMW comment on drive trace correction
WLTP-08-47 | WLTP: BMW comments on the road load normalization of rotational mass
WLTP-08-37 | EU/TNO WLTP correction algorithms draft study
TNO draft report on "Correction algorithms for WLTP chassis dynamometer and coast-down testing".
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| 11. | General issues |
WLTP-08-04 | Working draft of the amended GTR No. 15 pursuant to phase 1b as of 14 September 2014
WLTP-08-09 | WLTP: Determination of system equivalency (Open issue item 59)
WLTP-08-39 | Propulsion systems definitions
WLTP-08-45 | Review of definitions in WLTP GTR
WLTP-08-40 | Report on WLTP GTR draft issues
WLTP-08-04 | Working draft of the amended GTR No. 15 pursuant to phase 1b as of 14 September 2014
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| 12. | Working Issues for WLTP Phase 2 |
WLTP-08-41 | Starting note for WLTP Phase 2
Initial working items for the phase 2 development of GTR No. 15 going into 2016.
WLTP-08-41/Annex.1 | Annex to the starting note for WLTP Phase 2
WLTP-08-42 | WLTP phases 2-3: Electric vehicle issues
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| 13. | Next meeting(s) | ||
| 14. | Any other business |
WLTP-08-44 | Status of fuel-efficiency policy in Korea
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