Minutes of 7th IWG meeting (WLTP-07-18e) were adopted without changes. India will give additionally information about the round robin exercises (item 11).

Update since 7th IWG meeting (WLTP-08-03e) was presented. The relevant task forces and their leaders are named (see column: contact person). TF leaders are required to inform WLTP leading team about TF members as well as agendas and minutes of scheduled TF meetings. WLTP leading team will collect the information and provide it to IWG members until WLTP IWG meeting #9.

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.

#23: 4WD dyno specifications:
T. Fujiwara outlined amendment proposal (WLTP-08-05) which was (in principle) adopted by WLTP IWG. Proposal needs editorial improvement (clarification of and / or composition and reordering of subparagraphs). Final wording will be given to the Drafting Coordinator by. T. Fujiwara.

#42: Willans factors for petrol (E10) & diesel (B7):
Proposal by Th. Adam (WLTP-08-06-rev1e) was presented. The general approach was supported by JPN and India. Mean net heat value shall be the base, asked by India. Values are shall be included as table data. Germany had a scrutiny reservation and will give feedback to the table data latest well in advance of IWG meeting #10. Depending on feedback from Germany the proposal is called adopted by WLTP IWG or needs to be rediscussed in the TF and at IWG meeting #10.

#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).

#47: FC interpolation method:
Proposal of Th. Adam (WLTP-08-08e) was presented by M. Bergmann. JPN and India asked for checking the use of theoretical cycle energy and distance in the calculation. Proposal was fully supported and adopted by WLTP IWG.

#59: System equivalency, Annex 9:
Starting note presented by K. Kolesa (WLTP-08-09e) Task force will be installed with members: Konrad Kolesa, Andre Rijnders, Iddo Riemersma, Christoph Lueginger, Les Hill; Bjoern Ramacherand external statistics experts

Proposal for modifications to the calculation parameter/coefficients r₀, a₁ and b₁ prepared by the WLTP downscaling issues task force.

#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.

Open issue 6 “Use of the gearbox, required data” concerns the following:

• modification of the definition of n_{min_drive} to make it more appropriate for modern engines and to make manipulations more difficult.
• Addition of n_max to section 2 and amendment of required data because the current definition is not appropriate for low powered vehicles.
• Replacement of P_normwot(n_{norm i, j}) in Section 2 (i) by P_wot(n _{i, j}) because there is no need for the normalisation.

#6: Annex 2, section 2, use of the gearbox, required data (WLTP-08-11e, WLTP-08-12e)
A modified description for n_{min_drive} and a modified definition for n_max were developed by the task force and presented for adoption. The 2 proposals were adopted by WLTP IWG.

For the amendment of definition of n_{min_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.

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.”

#6: Annex 2, section 2, use of the gearbox, required data (WLTP-08-11e, WLTP-08-12e)
A modified description for n_{min_drive} and a modified definition for n_max were developed by the task force and presented for adoption. The 2 proposals were adopted by WLTP IWG.

For the amendment of definition of n_{min_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.

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.

#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.

Proposal for a “fundamentally amended” version of Annex 2 including track changes and notes.

Clean copy of the proposal for a “fundamentally amended” version of Annex 2 in GTR No. 15.

#6: Revised text for annex 2 with requirements for deceleration phases (WLTP-08-14e /-14e_clean)
All additional text proposals were adopted by WLTP IWG.

#8: Annex 2, section 4b (WLTP-08-15rev1)
Proposal to replace 3 s rule by 2 s rule was required by manufacturers to avoid excessive engine speeds for “short” transmissions. Effect on number of upshifts was evaluated. TF proposes 2 s rule. Proposal was adopted by WLTP IWG.

Proposal to dispense with this criteria in the WLTP test procedure.

Progress report (WLTP-08-17-rev1e) was given on RLD issues (#10 – 21), incl. outcome of validation exercises, by TF Coordinator R. Cuelenaere

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.

#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.

#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.

#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.

#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.

Input for open issue items 10 and 18.

#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.

#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.

#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.

Final proposal of the Speed Points (OIL #12, #21) drafting group.

#12, #21 Definition of Reference speed points:
WLTP-08-28e was adopted by WLTP IWG. TF was thanked for the constructive way of working on an agreement. Draft will be given to the Drafting Coordinator.

#19: Proposal for alternative warm up procedure:
WLTP-08-29-rev1e was presented by T. Fujiwara. WLTP IWG agreed on the content and calls it adopted. T. Fujiwara & RLD TF should check whether the proposed wording needs editorial improvements. Final gtr wording will be provided by T. Fujiwara to the Drafting Coordinator before IWG meeting #9.

Initial comments concerning the chassis dynamometer calibration, force transducer and dynamometer parasitic loss calibrations, measurement equipment, and force measurement system under GTR No. 15.

#24-26: Starting note
WLTP-08-30e from Th. Adam was presented by M. Bergmann. Expert meeting will be scheduled for reporting and adoption in IWG meeting #9.

#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.

#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.

#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.

Proposals from the task force assigned to consider these open issues.

34. – 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.

Clarification on temperature provisions (soak / type 1 test):
WLTP-08-34e was presented by M. Bergmann and adopted by WLTP IWG. Proposal will be provided to the drafting coordinator.

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.)

#49: Calculation of CO2 value for an individual vehicle
Proposal by M. Bergmann (WLTP-08-35e) was adopted by WLTP IWG.

TNO draft report on “Correction algorithms for WLTP chassis dynamometer and coast-down testing”.

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.

#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.

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.

Amendment for Gtr 15 definitions
B. Coleman presented WLTP-08-39e and WLTP-08-45e. WLTP IWG welcomed the work and supported after discussion the definition of “maximum vehicle load” as a base for depending definitions. “Maximum vehicle laden mass” – feedback from JPN is expected. The proposed changes were not yet formally adopted, but supported by the WLTP IWG. Draft text will be given to the Drafting Coordinator. The technical aspects for continuously regenerating systems have to be integrated in the technical annex (Drafting Coordinator)

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.

Initial working items for the phase 2 development of GTR No. 15 going into 2016.

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.

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.

Initial working items for the phase 2 development of GTR No. 15 going into 2016.

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.

#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.

Information about status of Fuel Efficiency Policy in Korea (WLTP-08-44-rev1e) Integrated fuel efficiency monitoring entered in force for road load determination and fuel efficiency. In-use program to be installed within 1 to 2 years.

Amendment for Gtr 15 definitions
B. Coleman presented WLTP-08-39e and WLTP-08-45e. WLTP IWG welcomed the work and supported after discussion the definition of “maximum vehicle load” as a base for depending definitions. “Maximum vehicle laden mass” – feedback from JPN is expected. The proposed changes were not yet formally adopted, but supported by the WLTP IWG. Draft text will be given to the Drafting Coordinator. The technical aspects for continuously regenerating systems have to be integrated in the technical annex (Drafting Coordinator)

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.

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.