WLTP-08-01
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Invitation to the 8th WLTP informal working group session
(ARAI)
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14 Aug 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0001
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WLTP-08-01/Add.1
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Visa letter template for entry into India pursuant to the 8th WLTP informal group session
(ARAI)
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14 Aug 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0001/Add.1
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WLTP-08-02/Rev.3
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Draft agenda for the 8th WLTP informal working group session (Revision 3)
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05 Nov 2014
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Informal Group
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Agenda
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0002/Rev.3
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WLTP-08-03
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WLTP Phase 1b open issues status sheet
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18 Sep 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
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WLTP-08-0003
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WLTP-08-04
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Working draft of the amended GTR No. 15 pursuant to phase 1b as of 14 September 2014
Document Title: Working draft of the amended GTR No. 15 pursuant to phase 1b as of 14 September 2014
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Document Reference Number: WLTP-08-04
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 14 Sep 14 (Posted 18 Sep 14)
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Document status: Superseded
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Drafting issues:
Chair introduced the process of amending the gtr text and announced to schedule a drafting meeting. Report (WLTP-08-40e) was given by S. Dubuc.
WLTP IWG received several comments from JPN, T&E and OICA members on the expert proposals in the current gtr draft (WLTP-08-04e) which were foreseen to be adopted by written procedure with deadline 31.10.2015. B. Coleman suggested to schedule drafting team meetings to have a peer review of the complete gtr draft. WLTP IWG concluded that a Drafting TF shall deal with the open points regarding expert proposals (editorial stuff, minor technical amendments, etc.) and conduct a peer review of the complete gtr. Drafting meetings to be arranged by the Drafting Coordinator. Brief introduction of new Expert Proposals to be adopted by written procedure will be in drafting taskforce if needed. Schedule for drafting taskforce will be established by Chair until 12/2014.
Chair clarified that all amendments from Drafting task force still need to be adopted formally by WLTP IWG later on. More fundamental issues need to be reported separately to WLTP IWG and will be added as separate discussions points to an IWG agenda, if necessary.
Indication of temperatures (°C / K, “273[.15] K”) has to be consistent within the gtr. Systematic approach will be developed by expert group (M. Bergmann, A. Feucht) and submitted to the WLTP IWG. To ensure consistency with other gtr’s, Chair will inform other GRPE IWGs, e.g. EPPR, by progress report in January GRPE.
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18 Sep 2014
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Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0004
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WLTP-08-05
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WLTP: Requirements for 4WD dynamometers (Open issue item 23)
(Japan)
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06 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0005
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WLTP-08-06/Rev.1
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WLTP: Willans factors for petrol (E10) & diesel (B7) (Open issue item 42)
(ACEA)
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12 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0006/Rev.1
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WLTP-08-07
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WLTP: Fuel consumption calculation for ICE vehicles (Open issue item 43)
(ACEA)
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06 Nov 2014
|
Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0007
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WLTP-08-08
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WLTP: Fuel consumption interpolation method (Open issue item 47)
(ACEA)
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06 Nov 2014
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Informal Group
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Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0008
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WLTP-08-09
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WLTP: Determination of system equivalency (Open issue item 59)
(Audi)
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06 Nov 2014
|
Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0009
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WLTP-08-10
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Modifications to the WLTP calculation parameter coefficients (Open issue item 5)
Document Title: Modifications to the WLTP calculation parameter coefficients (Open issue item 5)
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Document Reference Number: WLTP-08-10
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Description: Proposal for modifications to the calculation parameter/coefficients r0, a1 and b1 prepared by the WLTP downscaling issues task force.
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 07 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#5: Modifications of the calculation parameter/coefficients r0, a1 and b1 (WLTP-08-10e)
India requested modifications and made a respective proposal. Modified calculation parameter/coefficients were developed. Effects for M1 and N1 vehicles were shown. O. Eberhardt expressed his concerns; if the approach would probably apply to N1 vehicles on the European market in future (note: this is not the case today). Proposed parameters were supported by India, JPN, EC as a compromise solution and adopted by WLTP IWG.
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07 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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.
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WLTP-08-0010
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WLTP-08-11
|
WLTP use of the gearbox: required data (Open issue item 6)
Document Title: WLTP use of the gearbox: required data (Open issue item 6)
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Document Reference Number: WLTP-08-11
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Description: Open issue 6 “Use of the gearbox, required data” concerns the following: - modification of the definition of nmin_drive to make it more appropriate for modern engines and to make manipulations more difficult.
- Addition of nmax to section 2 and amendment of required data because the current definition is not appropriate for low powered vehicles.
- Replacement of Pnormwot(nnorm i, j) in Section 2 (i) by Pwot(n i, j) because there is no need for the normalisation.
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 04 Nov 14 (Posted 07 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#6: Annex 2, section 2, use of the gearbox, required data (WLTP-08-11e, WLTP-08-12e)
A modified description for nmin_drive and a modified definition for nmax were developed by the task force and presented for adoption. The 2 proposals were adopted by WLTP IWG.
For the amendment of definition of nmin_drive, the perspective was given to have a proposal ready for adoption for IWG meeting #10.
For the calculation of gear use if separate groups of transmission ratios are available, the proposal to base the gear use determination on the group normally used for on-road operation was adopted by WLTP IWG. The wording needs to be improved regarding “range” (B. Coleman, Drafting Coordinator).
Definition of exception of crawler gears in current gtr was discussed in TF without conclusion. Timeframe was extended to IWG meeting #10.
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07 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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>
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WLTP-08-0011
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WLTP-08-12
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WLTP: Use of the gearbox, auwiliary gearboxes, exception of crawler gear (Open issue item 6)
Document Title: WLTP: Use of the gearbox, auwiliary gearboxes, exception of crawler gear (Open issue item 6)
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Document Reference Number: WLTP-08-12
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Description: 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.”
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 07 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#6: Annex 2, section 2, use of the gearbox, required data (WLTP-08-11e, WLTP-08-12e)
A modified description for nmin_drive and a modified definition for nmax were developed by the task force and presented for adoption. The 2 proposals were adopted by WLTP IWG.
For the amendment of definition of nmin_drive, the perspective was given to have a proposal ready for adoption for IWG meeting #10.
For the calculation of gear use if separate groups of transmission ratios are available, the proposal to base the gear use determination on the group normally used for on-road operation was adopted by WLTP IWG. The wording needs to be improved regarding “range” (B. Coleman, Drafting Coordinator).
Definition of exception of crawler gears in current gtr was discussed in TF without conclusion. Timeframe was extended to IWG meeting #10.
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07 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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."
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WLTP-08-0012
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WLTP-08-13
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WLTP: Determination of engine speeds and calculation of available power (Open issue item 6)
Document Title: WLTP: Determination of engine speeds and calculation of available power (Open issue item 6)
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Document Reference Number: WLTP-08-13
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Description: 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.
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 07 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#6: Annex 2, sections 3.2 and 3.3 (WLTP-08-13e):
For determination of engine speed improved descriptions were developed. The proposals were adopted by WLTP IWG.
Additional safety margin for full load power curve was required by India and manufacturers. Task force developed an exponential approach. Amendment of gtr is proposed and was adopted by WLTP IWG. India will analyses the impact of the tolerance band of power determination and will give additional feedback to the task force.
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07 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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.
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WLTP-08-0013
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WLTP-08-14
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WLTP: Revised text for Annex 2-marked up version (Open issue item 6)
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06 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Proposal for a "fundamentally amended" version of Annex 2 including track changes and notes.
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WLTP-08-0014
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WLTP-08-14/clean
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WLTP: Revised text for Annex 2 (Open issue item 6)
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06 Nov 2014
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Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Clean copy of the proposal for a "fundamentally amended" version of Annex 2 in GTR No. 15.
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WLTP-08-0014/clean
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WLTP-08-15
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WLTP: Replace 3 s rule by 2 s rule (Open issue item 8)
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06 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0015
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WLTP-08-16
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WLTP: Gearshift family criteria (Open issue item 9)
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06 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Proposal to dispense with this criteria in the WLTP test procedure.
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WLTP-08-0016
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WLTP-08-17/Rev.1
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WLTP: Progress report on Annex 4 (Road Load Determination)
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14 Nov 2014
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Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0017/Rev.1
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WLTP-08-18
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WLTP: handling of tyre rolling resistances for the combined approach
(EC)
Document Title: WLTP: handling of tyre rolling resistances for the combined approach
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Document Reference Number: WLTP-08-18
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Submitted by: EC
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 06 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Starting note on tyre selection:
Presentation by K. Steininger (WLTP-08-18e). Proposal of EU-COM was discussed in the TF for Annex 4 without conclusion. Comprehensive information from ETRTO / tyre manufacturers regarding the distribution of rolling resistance values of aftermarket tyres within classes is still missing. Contracting Parties were not in a position to decide to add the issue to the open issue list of WLTP IWG or to reject it (means unchanged gtr provisions). Conclusion of WLTP IWG: RLD TF should not continue the discussions until the necessary data is available.
Independent from the EU COM proposal NL proposed that the gtr should reference to the ISO standard instead of R117 for determination of rolling resistance. NL (A. Rijnders) will provide a proposal for pre-discussion in the RLD TF and possible adoption at IWG meeting #9.
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06 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0018
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WLTP-08-19
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Road load family validation program and proposal (Open issue item 1b-2)
(BMW)
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06 Nov 2014
|
Informal Group
|
Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0019
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WLTP-08-20
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Road load family draft (Open issue item 1b-2)
(BMW)
Document Title: Road load family draft (Open issue item 1b-2)
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Document Reference Number: WLTP-08-20
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Submitted by: BMW
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 06 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#1b_2: Concept for Road Load Family
WLTP-08-19e and an initial draft (WLTP-08-20e) were presented by Chr. Lueginger (OICA). Family concept was intensely discussed and in principle supported by WLTP IWG. Further development seems to be necessary. Approval will depend on results of validation (measurements are foreseen latest until mid 2015). Progress reports will be given continuously, adoption will be prepared for IWG meeting #12.
B. Coleman suggested renaming of “CO2-family” should be considered with reflection to pure EV. The term “CO2 family” is already blocked by some regional legislation, it should therefore be renamed. “Combined approach family” (or a similar term) would be more appropriate. Input is requested for IWG meeting #9.
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06 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0020
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WLTP-08-21
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WLTP Annex 4 and 7, Delta Cd*Af: Alternative Cd*Af determination methods
(BMW)
Document Title: WLTP Annex 4 and 7, Delta Cd*Af: Alternative Cd*Af determination methods
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Document Reference Number: WLTP-08-21
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Submitted by: BMW
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 04 Nov 14 (Posted 05 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#10: Use of Wind tunnel data for combined approach:
Alternative delta CD*A determination (WLTP-08-21e) was outlined by BMW. It was agreed by WLTP IWG that there is a justified need for an alternative determination method and the proposal should be further evaluated. Nevertheless WLTP IWG raised strong concerns regarding the current lack of specifications of simulation tools to ensure equivalency of the alternative determination method. Some basic parameters should be established. Constraints in regard to energy difference should also be considered. Concept will be rediscussed at IWG meeting #9.
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05 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0021
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WLTP-08-22
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WLTP: RLD with flatbelt/dyno plus wind tunnel method status report
(BMW)
Document Title: WLTP: RLD with flatbelt/dyno plus wind tunnel method status report
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Document Reference Number: WLTP-08-22
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Submitted by: BMW
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 12 Nov 14 (Posted 14 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#18: Use of wind tunnel + moving belt/dyno as alternative RLD method:
Status report by BMW (WLTP-08-22e) was presented. TF RLD prediscussed the proposal and supports the concept in principle. Work continues. Equipment and measurement method of moving belt dyno (WLTP-08-24e) were presented by Folko Rohde (VW) as basic principle.
India requested more detailed background information on the development of this new method in a form of a technical report. A more detailed progress report, incl. this background information, is expected by BMW in meeting #10, with a preview in meeting #9. It is also expected that the information will be given in the formal technical report which will be provided together with the GRPE working document for amendment of gtr No. 15. Initiative of Technical Gtr Sponsors (JPN, EC) is necessary.
UTAC presented comparison results (WLTP-08-23e) between coast down and windtunnel(WT)/chassdynamometer(CD) method. WT+CD offer a better repeatability & reproducibility than the track method. More data is expected from VW.
Initial gtr draft text of this new method was outlined (WLTP-08-25e) for wind tunnel and moving belt regarding procedure and equipment. Repeatability criteria have to be developed based on validation measurement results. Draft will be discussed further in detail in the task force and presented for confirmation in IWG meeting #10.
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14 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0022
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WLTP-08-23
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WLTP RLD with chassis dyno plus wind tunnel validation program
(UTAC)
Document Title: WLTP RLD with chassis dyno plus wind tunnel validation program
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Document Reference Number: WLTP-08-23
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Submitted by: UTAC
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 12 Nov 14 (Posted 14 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#18: Use of wind tunnel + moving belt/dyno as alternative RLD method:
Status report by BMW (WLTP-08-22e) was presented. TF RLD prediscussed the proposal and supports the concept in principle. Work continues. Equipment and measurement method of moving belt dyno (WLTP-08-24e) were presented by Folko Rohde (VW) as basic principle.
India requested more detailed background information on the development of this new method in a form of a technical report. A more detailed progress report, incl. this background information, is expected by BMW in meeting #10, with a preview in meeting #9. It is also expected that the information will be given in the formal technical report which will be provided together with the GRPE working document for amendment of gtr No. 15. Initiative of Technical Gtr Sponsors (JPN, EC) is necessary.
UTAC presented comparison results (WLTP-08-23e) between coast down and windtunnel(WT)/chassdynamometer(CD) method. WT+CD offer a better repeatability & reproducibility than the track method. More data is expected from VW.
Initial gtr draft text of this new method was outlined (WLTP-08-25e) for wind tunnel and moving belt regarding procedure and equipment. Repeatability criteria have to be developed based on validation measurement results. Draft will be discussed further in detail in the task force and presented for confirmation in IWG meeting #10.
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|
14 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0023
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WLTP-08-24
|
WLTP wind tunnel method: Requirements for flat belt
(VW)
Document Title: WLTP wind tunnel method: Requirements for flat belt
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Document Reference Number: WLTP-08-24
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Description: Input for open issue items 10 and 18.
|
Submitted by: VW
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 07 Nov 14 (Posted 07 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#18: Use of wind tunnel + moving belt/dyno as alternative RLD method:
Status report by BMW (WLTP-08-22e) was presented. TF RLD prediscussed the proposal and supports the concept in principle. Work continues. Equipment and measurement method of moving belt dyno (WLTP-08-24e) were presented by Folko Rohde (VW) as basic principle.
India requested more detailed background information on the development of this new method in a form of a technical report. A more detailed progress report, incl. this background information, is expected by BMW in meeting #10, with a preview in meeting #9. It is also expected that the information will be given in the formal technical report which will be provided together with the GRPE working document for amendment of gtr No. 15. Initiative of Technical Gtr Sponsors (JPN, EC) is necessary.
UTAC presented comparison results (WLTP-08-23e) between coast down and windtunnel(WT)/chassdynamometer(CD) method. WT+CD offer a better repeatability & reproducibility than the track method. More data is expected from VW.
Initial gtr draft text of this new method was outlined (WLTP-08-25e) for wind tunnel and moving belt regarding procedure and equipment. Repeatability criteria have to be developed based on validation measurement results. Draft will be discussed further in detail in the task force and presented for confirmation in IWG meeting #10.
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|
07 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Input for open issue items 10 and 18.
|
WLTP-08-0024
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WLTP-08-25
|
WLTP wind tunnel method: draft GTR provisions
(BMW)
Document Title: WLTP wind tunnel method: draft GTR provisions
|
Document Reference Number: WLTP-08-25
|
Submitted by: BMW
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 12 Nov 14 (Posted 14 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#18: Use of wind tunnel + moving belt/dyno as alternative RLD method:
Status report by BMW (WLTP-08-22e) was presented. TF RLD prediscussed the proposal and supports the concept in principle. Work continues. Equipment and measurement method of moving belt dyno (WLTP-08-24e) were presented by Folko Rohde (VW) as basic principle.
India requested more detailed background information on the development of this new method in a form of a technical report. A more detailed progress report, incl. this background information, is expected by BMW in meeting #10, with a preview in meeting #9. It is also expected that the information will be given in the formal technical report which will be provided together with the GRPE working document for amendment of gtr No. 15. Initiative of Technical Gtr Sponsors (JPN, EC) is necessary.
UTAC presented comparison results (WLTP-08-23e) between coast down and windtunnel(WT)/chassdynamometer(CD) method. WT+CD offer a better repeatability & reproducibility than the track method. More data is expected from VW.
Initial gtr draft text of this new method was outlined (WLTP-08-25e) for wind tunnel and moving belt regarding procedure and equipment. Repeatability criteria have to be developed based on validation measurement results. Draft will be discussed further in detail in the task force and presented for confirmation in IWG meeting #10.
|
|
14 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0025
|
WLTP-08-26
|
WLTP: Hybrid vehicle default road load method
(Netherlands)
Document Title: WLTP: Hybrid vehicle default road load method
|
Document Reference Number: WLTP-08-26
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Submitted by: Netherlands
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 10 Nov 14 (Posted 11 Nov 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure and WP.29 Regulatory Project | Electric Vehicle Environmental Performance.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#17: Default road load parameters:
Explanation of hybrid approach (incl. extension of scope) was given by NL (WLTP-08-26e). Approach is necessary especially for multi-stage vehicles (MSV) and can be used as an option to full measurement or application of default road load values. WLTP IWG welcomed the initial proposal and requested to develop it further in the RLD TF. JPN had concerns to extend the scope of application to other vehicles than MSV, e.g. N1.. Based on the statements from other Contracting Parties, e.g. Germany / NL, it was agreed by WLTP IWG that the RLD TF should further investigate the possibility of scope extension. India requested that default road load values shall be based on real data. WLTP IWG asks RLD TF for clarification of validation needs and further steps for reporting in IWG meeting #9.
ACEA welcomed the NL proposal and gave a feedback (WLTP-08-27e). Additional coast down data and comparison to the adjusted default values are expected to be delivered by ACEA to RLD TF. The separate proposal to adapt the factor of “F0” in the current gtr formula should be further discussed in the RLD TF. ACEA also offered to provide a document which describes the EU concept of MSV as background information for other Contracting Parties. WLTP IWG agreed to postpone final discussion on default parameters to IWG meeting #10.
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11 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
Electric Vehicle Environmental Performance
Electric Vehicles & the Environment
|
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WLTP-08-0026
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WLTP-08-28
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WLTP: Proposal for reference speeds (version 3)
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14 Nov 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
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Final proposal of the Speed Points (OIL #12, #21) drafting group.
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WLTP-08-0028
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WLTP-08-29/Rev.1
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WLTP: Alternative warm-up procedure (Open issue 19)
(Japan)
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14 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0029/Rev.1
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WLTP-08-30
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WLTP: Starting note for open issue items 24-26
(Audi)
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09 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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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WLTP-08-0030
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WLTP-08-31
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WLTP: Number of tests (Open issue item 27)
(Japan)
Document Title: WLTP: Number of tests (Open issue item 27)
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Document Reference Number: WLTP-08-31
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Submitted by: Japan
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 10 Nov 14 (Posted 11 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#27: Number of tests:
Proposal of JPN (WLTP-08-31e) was outlined by T. Fujiwara and compared with the EU proposal (WLTP-08-43e), introduced by O. Eberhardt. WLTP IWG asked for further clarification of the Japanese proposal. A major point of discussion was related to the separation of CO2 / pollutants in connection with the question whether a declared or measured CO2 value will be used. EU was requested to clarify the future situation in EU legislation regarding the declaration of the CO2 value and give feedback to TF leader T. Fujiwara.
TF leader T. Fujiwara will convene experts to prepare a status document, which summarizes the situation (advantages/disadvantages of approaches), and develop a harmonized gtr draft text.
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11 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0031
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WLTP-08-32
|
Progress report of the WLTP task force on the coasting method
Document Title: Progress report of the WLTP task force on the coasting method
|
Document Reference Number: WLTP-08-32
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 12 Nov 14 (Posted 14 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#31: Provisions for Coasting:
Progress report (WLTP-08-32e) by TF leader Th. Vogel was introduced by H. Steven. Due to the fundamental objections from JPN (cycle modifications are not acceptable) the supplemental test and the proposal from PSA are obsolete. Therefore the proposal from BOSCH is currently the only option to continue the work in the TF. The BOSCH approach was described in more details: evaluation of phases within the WLTC where coasting might occur and considering the effect of coasting in these phases by post calculation. EU requests clarification of time alignment of CO2-modal data. Coasting TF should discuss this proposal further on expert level and report to next IWG meeting.
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14 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0032
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WLTP-08-32/Annex.1
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Bosch proposal to the Coasting Method WLTP Task Force (Annex to the task force progress report)
(Bosch)
Document Title: Bosch proposal to the Coasting Method WLTP Task Force (Annex to the task force progress report)
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Document Reference Number: WLTP-08-32/Annex.1
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Submitted by: Bosch
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 12 Nov 14 (Posted 14 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#31: Provisions for Coasting:
Progress report (WLTP-08-32e) by TF leader Th. Vogel was introduced by H. Steven. Due to the fundamental objections from JPN (cycle modifications are not acceptable) the supplemental test and the proposal from PSA are obsolete. Therefore the proposal from BOSCH is currently the only option to continue the work in the TF. The BOSCH approach was described in more details: evaluation of phases within the WLTC where coasting might occur and considering the effect of coasting in these phases by post calculation. EU requests clarification of time alignment of CO2-modal data. Coasting TF should discuss this proposal further on expert level and report to next IWG meeting.
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14 Nov 2014
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Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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WLTP-08-0032/Annex.1
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WLTP-08-33
|
WlTP: Handling of Ki (Open issue items 34-38)
Document Title: WlTP: Handling of Ki (Open issue items 34-38)
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Document Reference Number: WLTP-08-33
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Description: Proposals from the task force assigned to consider these open issues.
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 09 Nov 14 (Posted 09 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
- – 38 Handling of Ki-Approach:
Proposal for adoption by N. Ichikawa (WLTP-08-33e) was presented.
Conclusions:
#37: Proposal for handling of Engine shut off between regeneration tests was adopted by WLTP IWG.
#35: Alternative Ki loading method: Proposal adopted by WLTP IWG.
#36: Each phase ki for FC/CO2- TF will further discuss this issue
#38: Fixed Ki Transfer from R101 is proposed: adopted by WLTP IWG.
#34: Application of a 3- or- 4 phase Ki procedure will be discussed further in TF.
Draft text for adopted OILs will be provided to drafting coordinator by the TF leader, N. Ichikawa.
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|
09 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Proposals from the task force assigned to consider these open issues.
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WLTP-08-0033
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WLTP-08-34
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WLTP: Vehicle temperature in test cell for Type I tests
(Audi)
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09 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0034
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WLTP-08-35
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WLTP: CO2 calculation method (Open issue item 49)
(ACEA)
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09 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
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.)
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WLTP-08-0035
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WLTP-08-37
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EU/TNO WLTP correction algorithms draft study
(TNO)
Document Title: EU/TNO WLTP correction algorithms draft study
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Document Reference Number: WLTP-08-37
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Description: TNO draft report on “Correction algorithms for WLTP chassis dynamometer and coast-down testing”.
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Submitted by: TNO
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 17 Nov 14 (Posted 17 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Position paper (WLTP-08-38e) was presented by EU-COM with the aim to decide on a package of procedures for harmonization and a timeframe for inclusion into gtr (priorities A, B, C). The focus lies on issues with priority A (immediate EU implementation & introduction in gtr in phase1B) and B (further investigation and introduction in phase1B). Proposal on item 2.7 (inaccuracy of road load setting on the chassis dyno) was withdrawn during discussions.
A first view was given by ACEA (WLTP-08-46, -08-47 by BMW):
Item 2.2 (drive trace correction) several difficulties are not yet addressed, but most of them could possibly be solved in the timeframe of WLTP phase 1B. The aspects regarding EV vehicles can most likely not be solved in phase 1B. JPN shared the EV concerns. EU COM proposed to exclude EVs in a first step.
Regarding item 4.1 (Veh. conditioning for coast down, tyre pressure monitoring/control) it was suggested to deal with it in TF RLD, because it is no correction. WLTP IWG agreed that TF RLD should prepare a proposal.
Item 6.2 (Rotational inertia mass) needs in view of ACEA further investigation.
JPN will provide its positions in IWG meeting #9, with the focus on items with rank of A or B. (note: inclusion of other items in WLTP phase 2 needs to be discussed separately, see agenda item 11)
India requested information about data basis for indicated possible deviations. EU COM referred to details in the report of TUG / TNO (WLTP-08-37e).
EU will clarify the immediate need for introduction of a cycle correction in European legislation before adoption of WLTP phase 1B.
Chair recommends TF to continue the discussion focusing on the A-Elements and later on the B-Position. All Contracting Parties are strongly requested to give a clear position, if this approach should be handled in general within the scope of WLTP gtr and if yes, which of the proposed items are supported to be harmonized within phase 1B. (Deadline for feedback: 02.01.2015). Additional assessments with a view on technical aspects / possible difficulties and necessary validations are also welcomed.
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|
17 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
TNO draft report on "Correction algorithms for WLTP chassis dynamometer and coast-down testing".
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WLTP-08-0037
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WLTP-08-38
|
EC cover note accompanying the draft TNO WLTP correction algorithms report
(EC)
Document Title: EC cover note accompanying the draft TNO WLTP correction algorithms report
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Document Reference Number: WLTP-08-38
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Submitted by: EC
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 17 Nov 14 (Posted 17 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#43: FC calculations:
Proposal of Th. Adam (WLTP-08-07e) was presented by M. Bergmann. India asked to check for used units in g/km and for inclusion of a generic formula. Proposal was adopted by WLTP IWG.
Draft text will be provided to the drafting coordinator and NL suggested crosschecking the proposal with item 2.3 of the calculation algorithms proposal by EC (WLTP-08-38e).
Position paper (WLTP-08-38e) was presented by EU-COM with the aim to decide on a package of procedures for harmonization and a timeframe for inclusion into gtr (priorities A, B, C). The focus lies on issues with priority A (immediate EU implementation & introduction in gtr in phase1B) and B (further investigation and introduction in phase1B). Proposal on item 2.7 (inaccuracy of road load setting on the chassis dyno) was withdrawn during discussions.
A first view was given by ACEA (WLTP-08-46, -08-47 by BMW):
Item 2.2 (drive trace correction) several difficulties are not yet addressed, but most of them could possibly be solved in the timeframe of WLTP phase 1B. The aspects regarding EV vehicles can most likely not be solved in phase 1B. JPN shared the EV concerns. EU COM proposed to exclude EVs in a first step.
Regarding item 4.1 (Veh. conditioning for coast down, tyre pressure monitoring/control) it was suggested to deal with it in TF RLD, because it is no correction. WLTP IWG agreed that TF RLD should prepare a proposal.
Item 6.2 (Rotational inertia mass) needs in view of ACEA further investigation.
JPN will provide its positions in IWG meeting #9, with the focus on items with rank of A or B. (note: inclusion of other items in WLTP phase 2 needs to be discussed separately, see agenda item 11)
India requested information about data basis for indicated possible deviations. EU COM referred to details in the report of TUG / TNO (WLTP-08-37e).
EU will clarify the immediate need for introduction of a cycle correction in European legislation before adoption of WLTP phase 1B.
Chair recommends TF to continue the discussion focusing on the A-Elements and later on the B-Position. All Contracting Parties are strongly requested to give a clear position, if this approach should be handled in general within the scope of WLTP gtr and if yes, which of the proposed items are supported to be harmonized within phase 1B. (Deadline for feedback: 02.01.2015). Additional assessments with a view on technical aspects / possible difficulties and necessary validations are also welcomed.
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 11 | 9-10
Jun 2015
Progress report on RLD issues was given by R. Cuelenaere (WLTP-11-11e).
OIL # 18: Wind tunnel method as alternative RLD method: Updated GTR proposal (WLTP-11-12e), incl. tolerances, was reviewed by the task force and was adopted by IWG WLTP. Drafted text for the wind tunnel method will be finished in the next Drafting Subgroup meeting. Flat Belt /dyno part will be developed further; proposal expected for adoption at IWG meeting #12.
OIL # 48: Correction Algorithms (Dyno load setting (2.7)) Proposal on time gaps between warm up and coast down by Audi (WLTP-10-19-rev1e) was accepted by the task force and adopted by the IWG. Drafted text is provided to the DC. On request of the RLD TF coordinator the Chair clarified that no further RLD related issues from the COM proposal for correction algorithms (WLTP-08-38e) will be put on the RLD TF agenda for Phase 1B.
OIL# 1b_5: Manufacturer’s responsibility for accuracy of road load specifications: Proposal was presented by Japan (WLTP-11-13e). Chair welcomed the more generic approach in phase 1b of WLTP, since in-use-provisions are foreseen in phase 2. EU Com welcomed the proposal for phase 1b, but stressed the importance of a specification of tolerances within WLTP phase 2. Proposal was discussed and adopted by the IWG with the following changes: “specification” —> “coefficients”, “should” —> “shall”.
OICA remarked the lacking alignment of specified tolerances in Annex 4 and will develop an amendment for review in the RLD TF and SG Drafting (no IWG document required).
RLD TF will provide the Japanese overview matrix of applied Annex 4 tolerances for information purposes in advance of IWG meeting #12.
OIL # 11, 13: Onboard-anemometry / wind conditions: Draft GTR proposal (WLTP-11-14e) was presented by Ford. Discussion arose about referring to SAE or ISO standards. Chair recommended a standalone text in the GTR with explanation in the technical report (note: the issue has been reported to GRPE on June 11th and guidance was requested. The UN Secretariat informed about the ongoing general discussions on WP.29 level and offered to prepare the discussions with the SAE representative). T&E asked for the need of other mounting positions. Ford will provide background to the task force.
Proposed deletion of regional option of more open wind conditions was adopted by the IWG. DC will change the GTR accordingly. OIL #11 is closed.
OIL # 4, 7, 14- 16, 20: Torque meter method (incl. road load curve correction/chassis dyno load setting). Validation results presented by Ford (WLTP-11-15e) showed good equivalence, which was confirmed as sufficient by WLTP IWG. Rob Cuelenaere explained the draft gtr proposal (WLTP-11-16e) and outlined the approaches to solve the remaining OIL items. WLTP IWG agreed to the approaches. TF will further work on the text and involve the SG Drafting in advance before the meeting #12.
EU Com raised concerns about the chain of tolerances in getting road load coefficients backwards out of the road measurement and followed dyno setting. TF will handle that issue within a dedicated torque meter meeting. Basic approach is accepted by the IWG.
OIL# 17: Default road load parameters.: Combined progress report by RDW/Daimler (WLTP-11-17e) incl. initial draft GTR proposals for the so called Road Load Matrix Family. TF Leader appreciated the constructive work in the task force. Chair welcomed the progress on this open issue.
EU Com appreciated the summarizing overview of methods (table page 31) and recommended inclusion in GTR (technical report). Approach for selection of a representative test vehicle was supported by IWG.
Compromise proposal by TF on the necessary amount of safety margin was explained. T&E requested greater margin. EU Com will review the safety margin in EU-WLTP. Japan had no reservation as long as the method is restricted to heavy cars as proposed. Political decision is expected. Taskforce is asked to prepare a decision paper for gaining feedback of the CP’s until end of June.
OICA will provide a proposal for an adapted range of CO2 for a road load matrix family (Bill Coleman).
OIL # 1b_3: Tyre selection status report was given by K. Steininger. Data from ETRTO will be further investigated. EU will consider circulating a proposal well in advance before meeting#12.
OIL# 10: Wind tunnel for combined approach: editorial updated draft document (WLTP-11-18e) was already adopted in meeting#10. OIL#10 is closed.
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|
17 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0038
|
WLTP-08-39
|
Propulsion systems definitions
|
06 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
Mutual Resolution No. 2: Vehicle Propulsion System Definitions
MR 2: VPSD
|
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WLTP-08-0039
|
WLTP-08-40
|
Report on WLTP GTR draft issues
Document Title: Report on WLTP GTR draft issues
|
Document Reference Number: WLTP-08-40
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 06 Nov 14 (Posted 06 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Drafting issues:
Chair introduced the process of amending the gtr text and announced to schedule a drafting meeting. Report (WLTP-08-40e) was given by S. Dubuc.
WLTP IWG received several comments from JPN, T&E and OICA members on the expert proposals in the current gtr draft (WLTP-08-04e) which were foreseen to be adopted by written procedure with deadline 31.10.2015. B. Coleman suggested to schedule drafting team meetings to have a peer review of the complete gtr draft. WLTP IWG concluded that a Drafting TF shall deal with the open points regarding expert proposals (editorial stuff, minor technical amendments, etc.) and conduct a peer review of the complete gtr. Drafting meetings to be arranged by the Drafting Coordinator. Brief introduction of new Expert Proposals to be adopted by written procedure will be in drafting taskforce if needed. Schedule for drafting taskforce will be established by Chair until 12/2014.
Chair clarified that all amendments from Drafting task force still need to be adopted formally by WLTP IWG later on. More fundamental issues need to be reported separately to WLTP IWG and will be added as separate discussions points to an IWG agenda, if necessary.
Indication of temperatures (°C / K, “273[.15] K”) has to be consistent within the gtr. Systematic approach will be developed by expert group (M. Bergmann, A. Feucht) and submitted to the WLTP IWG. To ensure consistency with other gtr’s, Chair will inform other GRPE IWGs, e.g. EPPR, by progress report in January GRPE.
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|
06 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0040
|
WLTP-08-41
|
Starting note for WLTP Phase 2
(Japan)
Document Title: Starting note for WLTP Phase 2
|
Document Reference Number: WLTP-08-41
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Description: Initial working items for the phase 2 development of GTR No. 15 going into 2016.
|
Submitted by: Japan
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 04 Nov 14 (Posted 06 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
This submission is related to the following document(s):
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Starting note by K. Kobayashi (WLTP-08-41e, WLTP-08-41e_annex) was presented. ToR need to be established until mid of 2015. Main issues are durability, in service conformity, additional tests. A questionnaire will be sent out to CPs to be completed until the end of February 2015. First views in IWG meeting #9 by K. Steininger (WLTP-08-42e) including EV issues of WLTP Phase 2 & 3. Consolidated communication to EVE-IWG is recommended. OICA is invited to contribute.
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|
06 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Initial working items for the phase 2 development of GTR No. 15 going into 2016.
|
WLTP-08-0041
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WLTP-08-41/Annex-Rev.1
|
Annex to the starting note for WLTP Phase 2: Questionnaire items
(Japan)
|
09 Jan 2015
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0041/Annex-Rev.1
|
WLTP-08-41/Annex.1
|
Annex to the starting note for WLTP Phase 2
(Japan)
|
06 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0041/Annex.1
|
WLTP-08-41/Rev.1
|
Starting note for WLTP Phase 2
(Japan)
|
09 Jan 2015
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
Initial working items for the phase 2 development of GTR No. 15 going into 2016.
|
WLTP-08-0041/Rev.1
|
WLTP-08-42
|
WLTP phases 2-3: Electric vehicle issues
(EC)
|
06 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
Electric Vehicle Environmental Performance
Electric Vehicles & the Environment
|
|
WLTP-08-0042
|
WLTP-08-43
|
WLTP: Proposal on number of tests
(EU)
Document Title: WLTP: Proposal on number of tests
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Document Reference Number: WLTP-08-43
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Submitted by: EU
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 11 Nov 14 (Posted 12 Nov 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
#27: Number of tests:
Proposal of JPN (WLTP-08-31e) was outlined by T. Fujiwara and compared with the EU proposal (WLTP-08-43e), introduced by O. Eberhardt. WLTP IWG asked for further clarification of the Japanese proposal. A major point of discussion was related to the separation of CO2 / pollutants in connection with the question whether a declared or measured CO2 value will be used. EU was requested to clarify the future situation in EU legislation regarding the declaration of the CO2 value and give feedback to TF leader T. Fujiwara.
TF leader T. Fujiwara will convene experts to prepare a status document, which summarizes the situation (advantages/disadvantages of approaches), and develop a harmonized gtr draft text.
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|
12 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0043
|
WLTP-08-44
|
Status of fuel-efficiency policy in Korea
(KATRI)
|
17 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0044
|
WLTP-08-45
|
Review of definitions in WLTP GTR
|
12 Nov 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0045
|
WLTP-08-46
|
WLTP: BMW comment on drive trace correction
(BMW)
Document Title: WLTP: BMW comment on drive trace correction
|
Document Reference Number: WLTP-08-46
|
Submitted by: BMW
|
Meeting Session: 8th WLTP session (18-20
Nov 2014)
|
Document date: 09 Dec 14 (Posted 10 Dec 14)
|
This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
|
Meeting Reports
|
Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Position paper (WLTP-08-38e) was presented by EU-COM with the aim to decide on a package of procedures for harmonization and a timeframe for inclusion into gtr (priorities A, B, C). The focus lies on issues with priority A (immediate EU implementation & introduction in gtr in phase1B) and B (further investigation and introduction in phase1B). Proposal on item 2.7 (inaccuracy of road load setting on the chassis dyno) was withdrawn during discussions.
A first view was given by ACEA (WLTP-08-46, -08-47 by BMW):
Item 2.2 (drive trace correction) several difficulties are not yet addressed, but most of them could possibly be solved in the timeframe of WLTP phase 1B. The aspects regarding EV vehicles can most likely not be solved in phase 1B. JPN shared the EV concerns. EU COM proposed to exclude EVs in a first step.
Regarding item 4.1 (Veh. conditioning for coast down, tyre pressure monitoring/control) it was suggested to deal with it in TF RLD, because it is no correction. WLTP IWG agreed that TF RLD should prepare a proposal.
Item 6.2 (Rotational inertia mass) needs in view of ACEA further investigation.
JPN will provide its positions in IWG meeting #9, with the focus on items with rank of A or B. (note: inclusion of other items in WLTP phase 2 needs to be discussed separately, see agenda item 11)
India requested information about data basis for indicated possible deviations. EU COM referred to details in the report of TUG / TNO (WLTP-08-37e).
EU will clarify the immediate need for introduction of a cycle correction in European legislation before adoption of WLTP phase 1B.
Chair recommends TF to continue the discussion focusing on the A-Elements and later on the B-Position. All Contracting Parties are strongly requested to give a clear position, if this approach should be handled in general within the scope of WLTP gtr and if yes, which of the proposed items are supported to be harmonized within phase 1B. (Deadline for feedback: 02.01.2015). Additional assessments with a view on technical aspects / possible difficulties and necessary validations are also welcomed.
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10 Dec 2014
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Informal Group
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Informal Documents
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
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WLTP-08-0046
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WLTP-08-47
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WLTP: BMW comments on the road load normalization of rotational mass
(BMW)
Document Title: WLTP: BMW comments on the road load normalization of rotational mass
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Document Reference Number: WLTP-08-47
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Submitted by: BMW
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Meeting Session: 8th WLTP session (18-20
Nov 2014)
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Document date: 09 Dec 14 (Posted 10 Dec 14)
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This document concerns GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure.
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Meeting Reports
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Worldwide Harmonized Light Vehicles Emissions Test Procedure | Session 8 | 18-20
Nov 2014
Position paper (WLTP-08-38e) was presented by EU-COM with the aim to decide on a package of procedures for harmonization and a timeframe for inclusion into gtr (priorities A, B, C). The focus lies on issues with priority A (immediate EU implementation & introduction in gtr in phase1B) and B (further investigation and introduction in phase1B). Proposal on item 2.7 (inaccuracy of road load setting on the chassis dyno) was withdrawn during discussions.
A first view was given by ACEA (WLTP-08-46, -08-47 by BMW):
Item 2.2 (drive trace correction) several difficulties are not yet addressed, but most of them could possibly be solved in the timeframe of WLTP phase 1B. The aspects regarding EV vehicles can most likely not be solved in phase 1B. JPN shared the EV concerns. EU COM proposed to exclude EVs in a first step.
Regarding item 4.1 (Veh. conditioning for coast down, tyre pressure monitoring/control) it was suggested to deal with it in TF RLD, because it is no correction. WLTP IWG agreed that TF RLD should prepare a proposal.
Item 6.2 (Rotational inertia mass) needs in view of ACEA further investigation.
JPN will provide its positions in IWG meeting #9, with the focus on items with rank of A or B. (note: inclusion of other items in WLTP phase 2 needs to be discussed separately, see agenda item 11)
India requested information about data basis for indicated possible deviations. EU COM referred to details in the report of TUG / TNO (WLTP-08-37e).
EU will clarify the immediate need for introduction of a cycle correction in European legislation before adoption of WLTP phase 1B.
Chair recommends TF to continue the discussion focusing on the A-Elements and later on the B-Position. All Contracting Parties are strongly requested to give a clear position, if this approach should be handled in general within the scope of WLTP gtr and if yes, which of the proposed items are supported to be harmonized within phase 1B. (Deadline for feedback: 02.01.2015). Additional assessments with a view on technical aspects / possible difficulties and necessary validations are also welcomed.
|
|
10 Dec 2014
|
Informal Group
|
Informal Documents
|
Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
|
|
WLTP-08-0047
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WLTP-08-48
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Minutes of the 8th WLTP informal group session
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10 Dec 2014
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Informal Group
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Report
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Worldwide Harmonized Light Vehicle Emissions Test Procedure
WLTP
Worldwide Harmonized Light Vehicles Test Procedure
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|
WLTP-08-0048
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