1. Runtime dependent change of CO2 emissions of light duty passenger cars
A study, commissioned by the Federal Highway Research Institute
Seite 1

2. Measurement process “0” and “15000” km
1) Preparation
Data acquisition / Vehicle inspection
Test fuel (Cert. EU5/6)
5) Exhaust measurement 1 NEDC 23°C
Bag: CO2, CO, HC, NMHC, NOx, NO2
PM, PN (Diesel und Otto DI)
Modal: CO2, CO, HC, NOx
2) Roller adaption 1
Warm Up: NEDC 1xpart 1 u. 1xpart 2
1xroller verification
6) Conditioning in Soak Area 2 h
23 ± 2°C
Battery charging
3) Pre conditioning
Otto: -; Diesel: 3x part 2 NEDC
7) Exhaust measurement 2 NEDC 23°C
Bag: CO2, CO, HC, NMHC, NOx, NO2
PM, PN (Diesel und Otto DI)
Modal: CO2, CO, HC, NOx
4) Conditioning in Soak Area 2 h
23 ± 2°C
Battery charging
Seite 2 © 2011 DEKRA Ersteller: Erik Pellmann
Seite 2

3. Project status 25 cars were total measured in point “0 km”
13 cars were measured in point “15000 km”
The rental of the cars are not easy because mainly of the following points:
we need it in any case for the second point (15000 km)  no rental service can ensure this
a clear history of repairs or services are necessary
Seite 3 © 2011 DEKRA Ersteller: Erik Pellmann
Seite 3

4. Test results / Interim results
*1)
Seite 4 © 2011 DEKRA Ersteller: Erik Pellmann
*1) Only high speed motorway driving
Seite 4