Potentials of the Portable Emission Measuring Systems (PN PEMS) to Control Real Driving Emissions (RDE)

Authors

Prof. Dr. techn. J. Czerwinski, Dipl.-Ing. (FH) Y. Zimmerli, Dipl.-Ing. (HTL) P. Comte, Berner Fachhochschule, Biel; Dr. techn. L. Cachon, Testo SE&CO. KGaA, Titisee-Neustadt; Dr. Sc. F. Riccobono, EC-JRC, Ispra

Year

2017

Print Info

Fortschritt-Berichte VDI, Series 12, No 802

Summary

In different projects of the Laboratory for Exhaust Emissions Control (AFHB) of the Berne University of Applied Sciences (BFH) gasoline- and Diesel passenger cars with different PEMS’s were tested on the chassis dynamometer and on the road. Instruments measuring the particle number (PN PEMS) were also included in the investigations. The present article will show some results and experiences with 3 DI gasoline-, 3 Diesel- cars and 4 PEMS and it will discuss the potentials and limits of this new methodology to control the emissions. The most important potentials are: independence of Laboratory, indication of different influences of ECU & OBD, consideration of: ambient conditions, situation of traffic, driving behavior, possibilities of calibration and possibility to estimate the exhaust mass flow without a flowmeter. The most important limit of this procedure is the fluctuating emissions source due to the above mentioned influences.