Final draft of the report on the development of the driving test procedure (DTP) for the light-duty vehicle emissions and fuel consumption global technical regulation (WLTP).

Status report of the subgroup working on electric vehicle WLTP laboratory procedures.

Report of the WLTP-DTP subgroup on Lab Process for Internal Combustion Engines
(LabProcICE)

Status report of the subgroup on Additional Pollutants under the WLTP test procedures subgroup.

Minutes of the VTF audio-web conference of 10th April 2013: organization of the post-Tokyo phase

Revised timetable and action points for Confirmation/Validation and for GTR drafting – 2013

Table of issues to be resolved concerning development of the WLTP test procedure going into the 14th informal group session on June 5.

Review of best and worst case scenarios for testing vehicles according to weight, tire selection, and aerodynamic component configurations.

Introductory remarks and summary review of the agenda items to be discussed during the session.

MS Excel download of the latest project schedule for development of the test procedures under WLTP.

Review of the program for the second phase of validations of the proposed WLTP test procedures.

44-page review of the WLTP assessment criteria as developed by the DTP subgroups on Lab Procedures for ICE, Particulate Measurement/Particle Numbers, Additional Pollutants, and Electric Vehicles.

Information on the testing programs to be completed no later than September 2012.

MS Excel download summary of the most relevant parameters identified by the DTP subgroup on Lab Procedures for Internal Combustion Engines (LabProcICE).

Progess report of the DTP subgroup on Lab Processes for Electric Vehicles.

Review of Annexes (1: Drive Cycles, 2: Shift Point Calculation, 3: Reference Fuels, 4: Road Load Determination, 5: Test Equipment and Calibrations, 6: Test Procedures and Conditions, 7: Calculations, 8: Electrified Vehicles, 9: System Equivalence) and for Additional Pollutants and PM/PN.

Where things stand in the development of the text of the WLTP GTR.

Review of the 10th WLTP-DTP subgroup meeting discussions and remaining open items.

WLTP GTR Drafting Coordinator draft version of the regulation, uploaded on the CIRCA website, as referenced in WLTP-DTP-10 meeting notes.

In 2011, the WLTP-DTP group agreed to pursue an improved definition of vehicle test mass and a step-less approach to the inertia class system. This revised document describes the current view on the combined approach for vehicle test mass, inertia setting, tire and vehicle selection.

Organizational remarks and overview of the status of work of the informal subgroup working on development of the test procedures for the WLTP going into its ninth session.

Summary of the ninth meeting of the informal subgroup of WLTP working on the development of the test procedures.

Progress report of the WLTP subgroup working on lab procedures for testing of internal combustion engines.

Progress report of the WLTP subgroup working on lab procedures for testing of electric vehicles.

Progress report of the WLTP subgroup working on test procedures for particulate measurement.

Progress report of the WLTP subgroup working on the test procedures for measuring emissions of pollutants not covered by other subgroups (NO2, N2O, NH3, etc.).

Current draft annex prepared by the WLTP subgroup developing guidelines for reference fuels to be used in the light vehicle emissions test procedures.

ACEA review of issues requiring resolution pursuant to the phase 2 validation of the WLTP test procedures.

Review of the program for validation of both the new WLTP test cycle and the new WLTP test procedure towards producing a final evaluation report.

Explanation of the proposal from RDW, T&E and ICCT for an improved definition of vehicle test mass as well as the proposal from ICCT to substitute the current step-based inertia class system by a step-less approach.

Presentation on the combined approach for vehicle test weight, stepless inertia and vehicle selection developed by RDW, ICCT, and T&E.

Project schedule for the development, validation, and finalization of the global technical regulation on light vehicle emissions testing by the end of 2012.

Status of the work on drafing the global technical regulation on light vehicle emissions test procedures.

Paper intended to explore the inclusion of vehicle families in the WLTP GTR. In principle, global technical regulations (GTR) are restricted to technical issues such as test cycles and procedures and do not include definitions of families.

Agenda for the ninth session of the informal group working on the test procedures for the worldwide light vehicle emissions test procedure.

Revised proposal to support development of the WLTP test procedures.

Summary of the 8th meeting of the informal group developing the test procedures for the WLTP GTR.

This document presents the position of OICA working groups on
WLTP mode construction. The proposal covers mode construction for conventional vehicles with options to be tested in Validation 2, including for electrified vehicles.

(Excel spreadsheet download)

Progress report of the WLTP-DTP subgroup on Lab Process-Internal Combustion Engines.

A flowchart depicting the process for coordinating work among the WLTP test procedures (DTP) and drive cycle (DHC) subgroups and the “drafting coordinator” in the preparation of the light vehicle emissions GTR.

Progress report of the WLTP-DTP subgroup on Lab Process-Electric Vehicles (E-LabProc).

Overview of the international testing program intended to assess and validate the proposed WLTP procedures.

This document presents new analysis on the implications of the current inertia class based system and outlines two alternative approaches for discussion within the WLTP-DTP working group.