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Informal Group
Worldwide Harmonized Light Vehicles Emissions Test Procedure
Session 6 | Vienna | 26-28 Mar 2014
Thirty-four documents have been posted for this session. The latest document was posted on 24 May 2014.
Reference No. Description (click for more information)
WLTP-06-01
Invitation to the 6th WLTP informal working group session
31 Jan 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0001
WLTP-06-02/Rev.2
Draft agenda for the 6th WLTP informal working group session
22 Mar 2014 Informal Group Agenda Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0002/Rev.2
WLTP-06-03
Table of WLTP open issues
11 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Table of items for resolution in phase 1b in the development of the light vehicle emissions and fuel consumption global technical regulation. WLTP-06-0003
WLTP-06-04
Definition of Hybrid Electric Vehicles (HEV) in the WLTP GTR (EC)
11 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Letter raising concerns regarding misinterpretation of the definition of a hybrid electric vehicle and resultant misapplication of approval requirements. WLTP-06-0004
WLTP-06-05
Note on RLD issue #12 by Japan (Japan)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Proposal to refine the selection of reference speeds for the road load curve determination (Open Issues List Item 12: Coast down procedure (Annex 4)). WLTP-06-0005
WLTP-06-06/Rev.1
Sailing in WLTP: Manual Transmission (MT) application Clutch & Gear requirements during deceleration (ACEA)
11 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Presentation on the use of "sailing" technologies to reduce CO<sub>2</sub> emissions and raising a question over the ability of the WLTP test cycle to account for the effect of sailing on vehicle emissions and fuel consumption performance. Sailing involves the decoupling of the engine from the drive shaft, enabling hybrid vehicles to cruise (or "sail") on battery power alone until such time as the engine needs to be restarted to generate electricity and/or resume the torque functions. WLTP-06-0006/Rev.1
WLTP-06-07
ACEA position on the definition of a "hybrid electric vehicle" (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure ACEA proposes to align the GTR text with the HEV definition used in the EC directive 692/2008/EC (Type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6)). WLTP-06-0007
WLTP-06-08
Analysis of WLTP Utility Factor Distributions (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Discussion of utility factors used in weighting emissions and fuel consumption. Utility factors are ratios based upon driver statistics and vehicle ranges recorded by off-vehicle charging (OVC) hybrid electric vehicles (HEV) (i.e., plug-in hybrid electric vehicles) in charge-depleting and charge-sustaining modes. WLTP-06-0008
WLTP-06-09
WLTP open issue: Petrol tank inlet orifice (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Proposal to maintain regulatory language to ensure that vehicles cannot be mis-fueled with a fuel (diesel, leaded or unleaded gasoline, etc.) other than that for which the vehicle is designed. WLTP-06-0009
WLTP-06-10
Status report on downscaling/gearshifting WLTP open issues
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Heinz Stephen update on efforts to research and resolve open issues. WLTP-06-0010
WLTP-06-11/Rev.1
WLTP Road Load Family concept (BMW)
22 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Proposal on a family definition for road load determination. WLTP-06-0011/Rev.1
WLTP-06-12/Rev.1
WLTP wind tunnel concept (BMW)
22 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Definition of wind tunnel for road load determination (Open Issues #10 and #18). WLTP-06-0012/Rev.1
WLTP-06-13
Review of WLTP speed range, speed points, reference speeds for RLD and dyno load setting (Audi)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0013
WLTP-06-14
Ambient Temperature Correction Test for WLTP (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0014
WLTP-06-15
Ambient Temperature Correction Test for WLTP (Audi and BMW)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Supplemental Test for determination of CO2 emissions under representative regional conditions WLTP-06-0015
WLTP-06-16
WLTP open issue 41: Drive trace index (Japan)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Study on applicability of driving index (defined in SAE J2951) to WLTP test cycle. WLTP-06-0016
WLTP-06-17
WLTP open issue: Handling of Manual Mode with Automatic Transmission (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0017
WLTP-06-18
Proposal for the definition of NMHC and THC density (ACEA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0018
WLTP-06-18/Rev.1
Proposal for the definition of NMHC and THC density (revised) (ACEA)
25 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP Phase 1b: Generic formula for hydrocarbon density WLTP-06-0018/Rev.1
WLTP-06-19
WLTP Round robin program: Asian exercise (JAMA)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0019
WLTP-06-20
WLTP drafting issues: Examples of editorial changes in the GTR
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0020
WLTP-06-21
Working draft for proposed corridendum to GTR No. 15 (WLTP)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP drafting committee working document with corrections to the text of GTR No. 15. WLTP-06-0021
WLTP-06-22
Comparison of definitions used in GTR No. 15 with UN Regulations and EC directives (EU and TRL)
18 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0022
WLTP-06-23
Wind conditions and on‐board anemometry for road load determination (TNO)
19 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Discussion paper on "open issue 13" (and 11) concerning corrections for wind conditions that impact coast down tests and times for road load determination and ultimately the road load settings of the chassis dynamometer. This document summarizes the views of the special ad hoc group formed to consider this issue. WLTP-06-0023
WLTP-06-24
Torque meter for road load determination (TNO)
19 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Discussion paper on the use of the torque meter in the WLTP coast-down methods to measure the running resistance as part of the road load determination. This document summarizes the views of the special ad hoc group formed to consider this issue. WLTP-06-0024
WLTP-06-25
Current status of the alternative warming up procedure under WLTP (Japan)
19 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0025
WLTP-06-26
WLTP: Starting note on Default RLD parameters
25 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Initial material for deliberations on road load curve determination. WLTP-06-0026
WLTP-06-27
WLTP report on additional pollutants testing (JRC, Horiba, and CGS)
22 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Real-time tailpipe ammonia measurements from vehicles tested over the new Worldwide harmonized Light-duty vehicle Test Cycle (WLTC) WLTP-06-0027
WLTP-06-28
WLTP Phase 1a Round Robin (European plan) (ACEA)
22 Mar 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0028
WLTP-06-29
WLTP Electric Vehicles subgroup open issues status report
24 May 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0029
WLTP-06-30
Update on RLD alternative methods test program (PSA)
24 May 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Status report on the evaluation of road load determination (RLD) using a "wind tunnel plus chassis dynamometer" versus "coast-down" methodologies to enable a wind tunnel plus coast-down method in GTR 15 and on comparison of running resistance measured on a chassis dynamometer by ISO 10521-1 methods (stabilized speeds) and by deceleration (short method). WLTP-06-0030
WLTP-06-31
WLTP correction algorithms (TU Graz and TNO)
03 Apr 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Progress reports from TUG (chassis dynamometer corrections) and TNO (coast down corrections) covering preliminary results (as of 27.03.2014). WLTP-06-0031
WLTP-06-32
WLTP: Validation phase 2 for Selected Additional Pollutants-Status Report and Open issues (JRC)
03 Apr 2014 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0032
WLTP-06-33/Rev.1
Minutes of the 6th WLTP informal working group session
24 May 2014 Informal Group Report Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure WLTP-06-0033/Rev.1