1. Boundary conditions - Status
RDE-LDV working group
20 November 2012, Brussels, EU
DG - Joint Research Centre (JRC)
IET - Institute for Energy and Transport

2. Environmental conditions
Ambient temperature
Humidity
Altitude
JRC proposal for consistency with HD regulation 582/2011
ACEA study (EU27/EU15, on-going)

3. Driving conditions Definitions for Low, Medium, and High Speed
Based on WLTP : Low speed/Medium speed/High speed/Extra high speed
Idling: definition, percentages, and durations
Shares of Low, Medium and High Speed driving
Average speeds of speed phases Low, Medium and High Speed driving
Driving dynamics (vehicle accelerations)
RPA (exact definition required)
Road gradient
Under discussion
JRC study (Statistics on EU WLTP data, on-going)
Use of ‘composite’ indicators (engine load, CO2) [JRC]?
Normalisation approach [TUG/ACEA]

4. Procedure design elements
Time of vehicle testing
It is recommended to conduct emissions tests under normal daytime traffic conditions (Regulation 582/2011).
Permissible vehicle loading
RC/PEMS testing with vehicles those mass at test start does not exceed the maximum permissible operating mass as specified by the manufacture including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers, test equipment, and cargo, but excluding the mass of trailers.
Weather conditions
The test shall be conducted meeting the requirements defined for atmospheric pressure and test temperature; no other restrictions apply.
Permissible fuel
Test fuels shall be market fuels (Directive 98/70/EC; amended by Directive 2009/30/EC) or reference fuels (Regulation 692/2008, Annex IX)

5. Procedure design elements
Total test duration
Number of speed phases
Rules for weighing/excluding data points
Cold/hot start
RC: data base, source, number of short trips; gear shift strategy
Covered pollutants
To be proposed later