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Talks and Poster Presentations (with Proceedings-Entry):

C. Denk, B. Geringer, P. Hofmann:
"Investigation and optimization of operating parameters to minimize particulate emissions from DISI engines";
Talk: Stuttgart International Symposium, Stuttgart (invited); 2013-02-26 - 2013-02-27; in: "Automotive and Engine Technology", M. Bargende, H. Reuss, J. Wiedemann (ed.); (2013), 15 pages.



English abstract:
Currently the concept of direct injection combined with turbocharging and downsizing is one of the most effective technologies to reduce the fuel consumption of spark
ignited engines in order to achieve the European Union emission limit of 95g CO2/km which is defined as target for 2020.
The concept of direct injection causes an increase of particulate emissions, creating a conflict with the 2014 coming into force EURO 6 emission standard. This limits the number of particles in the exhaust of DISI engines to 6x1012 particles per kilometre.
This paper shows results focused on the effects of the variation of different engineparameters to optimize the ECU-data in order to reduce the particle number in the New European Driving Cycle (NEDC).
Through the consistent implementation of this approach, a reduction of the number of particles by about 86% in the NEDC could be achieved.
The potential to minimize particulate emissions with different ethanol fuels for steady state operating points and the NEDC was examined.
A comprehensive assessment of the potential of "The use of a particulate filter" was accomplished to get new knowledge concerning loading and regeneration of the filter.
Finally the basic potential of different hybridization strategies to minimize particulate emissions have been examined and evaluated.
The results provide an important contribution to reach future emission limits.

Keywords:
Particulate emissions, DISI, Gasoline Particulate Filer (GPF), Hybridisation, Bioethanol

Created from the Publication Database of the Vienna University of Technology.