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

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.

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.

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.

WLTP Subgroup on Electric Vehicles: Status of Phase 2 effort

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

Adopted proposal for Amendment 1 to global technical regulation (gtr) 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 the WLTP informal group discussions on the Phase 2 development of GTR No. 15.

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

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.

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.

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.

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

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

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

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.

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.

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

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.