Zero-Impact Combustion Engine

Autoren

Dr.-Ing. Matthias Thewes, Dr.-Ing. Andreas Balazs, Surya Kiran Yadla, MSc, Vitali Walter, MSc, Dr.-Ing. Michael Görgen, Dr.-Ing. Johannes Scharf, FEV Europe GmbH, Aachen;
Stefan Sterlepper, MSc, Tobias Voßhall, MSc, Lehrstuhl für Verbrennungskraftmaschinen (VKA), RWTH Aachen University, Aachen

Zusammenfassung

Environmental-friendliness has become a dominant driver for the development towards Real driving emission (RDE)-compliant powertrains. Upcoming emission legislations, like Euro 7 or China 7, may pose further challenges, such that the question arises how
they can be addressed. Ultimately, a combustion engine with zero environmental impact could be the target, causing lower pollutant emissions than the pollutant content already contained in the ambient air, so that the engine actually cleans the inner city air.

An exhaust aftertreatment system for a 2.0 l turbocharged Gasoline direct injection engine enabling zero-impact emissions is identified using FEV’s real driving emission simulation approach and measurements of novel exhaust gas aftertreatment systems. The results indicate that substantial further emission reductions towards the zeroimpact goal are attainable. NOX emissions in WLTC can be reduced by 99.9 % compared to today's legislative Euro 6d requirements. As a result of electrical pre-heating of the exhaust aftertreatment system, the fuel consumption increases by 4.3 %. The knowledge gained throughout the investigations can be used to tailor exhaust aftertreatment system for Euro 7 requirements with less fuel consumption drawback.

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