1. Working Paper No. WLTP-05-11e
Agenda item 2, Overview of the detailed Technical report on DTP (GRPE-68-04)
by H. Steven 1

2. Structure of the DTP technical report
1 Introduction
2 Objective
3 Organisation, structure of the project and contributions of the different subgroups to the UN GTR
4 Test procedure development
5 Validation of the test procedure
Annex 1 Emission legislation
Annex 2 List of participants to DTP 2

3. 3. Structure of the project

4. 3.3 DTP group and subgroups
3.3.1 Terms of Reference (ToR)
3.3.2 Laboratory procedures for internal combustion engine vehicles (LabProcICE)
3.3.3 Laboratory procedures for electrified vehicles (LabProcEV)
3.3.4 Particulate mass/Particulate number (PM/PN)
3.3.5 Additional pollutants (AP)
3.3.6 Reference fuel (RF) 4

5. 4. Test procedure development
4.1 General Purpose and Requirements
4.2 Approach
4.3 Improvements in the GTR
4.4 New concepts of the GTR
4.5 GTR structure 5

6. 4.4 New concepts of the GTR 4.4.1 CO2 interpolation method
4.4.2 Vehicle selection
4.4.3 Interpolation/extrapolation range
4.4.4 Vehicle test mass
4.4.5 Vehicle coastdown mode and dynamometer operation mode
4.4.6 Tyres
4.4.7 Default road load factors
4.4.8 RCB correction
4.4.9 Electrified Vehicles 6

7. 4.5 GTR structure 4.5.1 Annex 3 – Reference fuels
4.5.2 Annex 4 - Road and dynamometer load
4.5.3 Annex 5 – Test equipment and calibrations
4.5.4 Annex 6 – Type 1 test procedure and test conditions
4.5.5 Annex 7 – Calculations
4.5.6 Annex 8 - Pure and hybrid electric vehicles 7

8. 5. Validation of the test procedure
5.1 Tests
5.1.1 Participants and vehicles, measured parameter
5.1.2 Evaluation issues
5.2 Results
5.2.1 Overnight soak temperatures
5.2.2 Test cell temperatures
5.2.3 Test cell humidity
5.2.4 Speed trace violations
5.2.5 Charge depleting tests for PEV and OVC HEV 8