Description of the scope and objectives of the task force created to draft procedures for evaluating the capacity of control systems to maintain compliance with emissions limits throughout the life of a vehicle.

Review of Japanese research into drive trace index normalization issues for electrified vehicles.

During the 169th session of WP.29 (para. 39 of the session report), the World Forum was informed that, following the entry into force of the new European legislation on provisions on real driving emissions and Worldwide Harmonized Light Vehicle Test Procedure (WLTP) as of September 2017, no new vehicles will be allowed to enter into the European market without fulfilling these new provisions.

WP.29 agreed to introduce transitional provisions in UN Regulations Nos. 83 and 101 to specify that Contracting Parties applying UN Regulations Nos. 83 and 101 which would also apply WLTP as defined in UN GTR No. 15 (such as the EU) would have no obligation to accept type-approvals granted on the basis of test cycles other than WLTP as of September 2017 (para. 41 of the 169th session report). WP.29 requested the secretariat to prepare an official document for the WP.29 March 2017 session, subject to the endorsement of GRPE at its January 2017 session, on supplements to UN Regulations Nos. 83 and 101 introducing such transitional provisions.

Thus, the secretariat has prepared this text to allow for such a derogation from mutual recognition requirements under UN R83 and R101 until such time as GTR 15 has been transposed into UN Regulations under the 1958 Agreement.

Amended Phase 2a Worldwide Light vehicles emissions Test Procedure (WLTP). Versions of the amended GTR highlighting the changes to the original regulation are available in word format and pdf format. The amendments address:

1. If an alternative value is applied for a parameter, such as a higher n_min_drive or an ASM, this parameter value has to be the same within an interpolation family (Paragraph 5.6.1.).
2. The mass in running order used for the calculation of the power to mass ratio is replaced by mass in running order minus 75 kg (paragraph 1. of Annex 1).
3. Idle engine speed n_idle is removed from the power curve measurement requirement (paragraph 2. of Annex 2).
4. The additional safety margin (ASM) value may be decided by manufacturer rather than the prescribed exponential curve (paragraph 3.4. of Annex 4).
5. The number of decimal place of road load coefficients is defined (paragraph 2.4. of Annex 4).
6. Additional restrictions are set to the application of the split run method for coastdown testing (paragraph 4.3.1.3.4. of Annex 4).
7. Specific data rejection criteria are added (paragraph 4.3.1.4.3. of Annex 4).
8. The “delta method” for road load determination is added (paragraph 6.8. of Annex 4 and other paragraphs. See section 4.4.25.for more detail).
9. The roller radius correction factor is modified(paragraph 6.6.3. of Annex 4).
10. The allowable combination of the test vehicle selection and family requirements are further clarified (paragraph 4.2.1.3. of Annex 4 and other paragraphs of Annex 4).
11. Provisions for an additional cooling fan are included(paragraph 1.1.5. and 1.1.6. of Annex 5).
12. The correction of measurement/recording frequency requirements are specified (over several annexes).
13. Calculation of the n/v ratio is defined (paragraph 8. of Annex 7).
14. The stepwise procedure for calculating the final test results of OVC-HEVs is added (paragraph 4.6. of Annex 8).

WLTP informal working group draft amendments to GTR No. 15 as of 11 October. This version shows the changes made.

WLTP informal working group draft amendments to GTR No. 15 as of 11 October.

Japan proposal: Delta vehicle friction method

Presentation on the current status of the drafting group work on the amendment of GTR 15.

Bill Coleman proposal.

Second draft of the proposed request for authorization for review by EVE informal group stakeholders.

Draft formal proposal to WP.29 for discussion within the EVE informal group.

Task force GTR 15-Phase 1b consolidated amendments based upon document GRPE-72-10/Rev.2.

Draft text for Annex 8: Pure electric, hybrid electric and compressed hydrogen fuel cell hybrid vehicles.

Goals and objectives for the task force established to draft provisions for GTR No. 15 to ensure that pollutant emissions do not exceed emission limits throughout the lifetime of the vehicle.

Draft proposal for a mandate to develop two different types of tests:

a) In-service-conformity (ISC) testing to be done by the manufacturer and the authority responsible for issuing the emission type approval and intended to assess the durability of emission control systems over a certain period of use.

b) Verification testing typically to be done by an independent third party, i.e. an authority not involved in the initial type approval process, NGOs or the manufacturers’ peers, in order to check the integrity of the initial approval test itself and to ensure that the use of (partially inevitable) test flexibilities by the manufacturer is limited.

Proposal for a mandate to develop provisions under GTR No. 15 to check the level of specific pollutant emissions of vehicles corresponding to conditions encountered during the winter season.

Draft proposal for consideration of testing where the test track is too short to coast down from ~145 km/h to ~15 km/h within a single straight track, thus necessitating split runs.

Proposal to clarify procedures (calculation of dynamometer setting coefficient) and number of coast-down runs required.

Starting note for correction factors for the dynamometer roller radius, additional cooling fan, and alternative road load determination process.

1) Bag measurements vs continuous diluted sampling and 2) Calibration gases and mixtures

Presentation on post-processing procedures for OVC-HEV and PEV (Shortened Test Procedure).

Clarification of n/v ratios (engine rotational speed divided by vehicle speed) and vehicle mass definitions.

Starting note for the OBD Task Force established for the development of OBD requirement compatible with the WLTP test cycles (and potentially as a separate GTR from GTR No. 15) during the Phase 2 work on GTR No. 15.

Table based upon document GRPE-72-10/Rev.2 reviewing errors and inconsistencies remaining in the GTR text.

Presentation of Japanese research into a normalization method to compensate for tolerances allowed under the proposed hybrid electric vehicle emissions and energy consumption test procedures.

Status report regarding open issues carried over from the just completed phase 1b of the development of GTR No. 15.

Report of the task for established to resolve issues regarding the testing of 2WD and 4WD vehicles on single and dual axis dynamometers (in support of EU plans for new regulatory requirements in 2016) following its first session.

Report on the efforts to resolve outstanding issues concerning the gearshifting requirements under the WLTP test cycle, including items raised during validation phases of the initial GTR procedures.

Update on EU experiences with the initial GTR No. 15 test procedures.

Proposed amendment to complete the Phase 1 development of the light vehicle emissions GTR. This amendment addresses:

• Conventional ICE vehicles
  • Normalisation methods and speed trace index;
  • Number of tests;
  • Wind tunnel as alternative method for road load determination;
  • Road load matrix family;
  • Interpolation family and road load family concept;
  • On-board anemometry and wind speed conditions;
  • Alternative vehicle warm-up procedure; and
  • Calculation and interpolation of fuel consumption.
• Electrified Vehicles
  • Fuel cell vehicle test procedure;
  • Shortened test procedure for PEV range test;
  • Phase-specific CO2 (fuel consumption) for Off-Vehicle Charging Hybrid Electric Vehicles (OVC-HEVs);
  • End of EV range criteria;
  • Interpolation approach for OVC-HEVs and PEVs;
  • Utility factors; and
  • Predominant mode / mode selection.
• Alternative pollutants
  • Measurement method for ammonia, ethanol, formaldehyde and acetaldehyde.
• Development of Harmonized Cycle (DHC)
  • Further downscaling in Wide Open Throttle (WOT) operation; and
  • Gear shifting.

Detailed report on the decisions and rationale involved in the development of the amendment to complete the Phase 1 development of the global technical regulation on light vehicle emissions.

Proposal to begin work on the second phase development of the light vehicle emissions GTR, covering:

• Remaining items from the original authorization (WP.29/AC.3/26)
• Open issues remaining under Phase 1b
• Durability of internal combustion engine vehicles and electric vehicles
• Evaporative emissions
• Low ambient temperature emissions
• Test procedure for the determination of additional CO2 emissions and fuel consumption from mobile air conditioning systems
• On-board diagnostics requirements
• Development of criteria for ex-post assessing of road load parameters (document WLTP-12-29-rev1e), and
• “Other items” as may arise.

WLTP Subgroup on Electric Vehicles: Status of Phase 2 effort

Adopted proposal for Amendment 1 to global technical regulation (gtr) No. 15 on Worldwide harmonized Light vehicles Test Procedures (WLTP)

Adopted technical report on the development of draft Amendment 1 to global technical regulation No. 15 on Worldwide harmonized Light vehicles Test Procedures (WLTP)

Review of work towards adapting and/or approving certain UN Regulations for use within the International Whole Vehicle Type Approval regulation.

Status of phases 1b and 2 of the development of GTR No. 15.

Status of the WLTP informal group discussions on the Phase 2 development of GTR No. 15.

Technical report prepared by the WLTP informal group to accompany the amendment to GTR No. 15 on light vehicle emissions, detailing the development and intentions of the amendments.

Consolidated version of the proposed GTR No. 15 amendment incorporating the corrections and improvements presented in document GRPE-72-09. These editorial corrections and improvements were identified since the last WLTP informal group session (WLTP-12 in Tokyo). OICA has consolidated comments of a number of participants on their behalf to assist the WLTP Drafting Coordinator.

Proposal for editorial corrections and improvements identified since the last WLTP informal group session (WLTP-12 in Tokyo). OICA has consolidated comments on behalf of a number of participants to assist the WLTP Drafting Coordinator.

Criteria for dual-axis chassis dynamometers have been added to the GTR in paragraph 2.3 in Annex 5, with the intention to make the use of a dual-axis chassis dynamometer mandatory for vehicles tested in 4WD mode. Though these criteria were put in place, there was no specific requirement added to include the requirement that vehicles tested in 4WD mode are actually tested on a dual-axis chassis dynamometer. This proposal would add a paragraph to address this omission.

Review of European testing to validate the Phase 1a test procedures of the light vehicle emissions GTR No. 15.

Summary of feedback received from labs conducting tests according to the phase 1a version of the light vehicle emissions GTR No. 15.

Comments from India concerning the Phase 1b amendment to GTR No. 15 (document GRPE/2016/3).

Status report to the WLTP informal group as part of the ongoing validation of the Phase 1a test procedures.

Presentation from the WLTP informal group drafting coordinator on the status of the draft Phase 1b amendment to GTR No. 15 on light vehicle emissions.

Proposal to begin work on the second phase development of the light vehicle emissions GTR, covering:

• Remaining items from the original authorization (WP.29/AC.3/26)
• Open issues remaining under Phase 1b
• Durability of internal combustion engine vehicles and electric vehicles
• Evaporative emissions
• Low ambient temperature emissions
• Test procedure for the determination of additional CO2 emissions and fuel consumption from mobile air conditioning systems
• On-board diagnostics requirements
• Development of criteria for ex-post assessing of road load parameters (document WLTP-12-29-rev1e), and
• “Other items” as may arise.