Fiore, Luis ; Conin, Michael ; Beidl, Christian ; Hohenberg, Günter ; Keck, Mathias ; Kreuz, Joachim ; Knaf, Daniel ; Sailer, Dennis
Hrsg.: Förderkreis Abgasnachbehandlungstechnologien für Verbrennungskraftmaschinen e.V. (2024)
A Pre-Turbo Exhaust Gas Aftertreatment System for efficient Diesel-Hybrid Powertrains.
Herausforderung – Abgasnachbehandlung. Dresden (06.11.2024 - 07.11.2024)
Konferenzveröffentlichung, Bibliographie

Kurzbeschreibung (Abstract)

This work shows the newest results of a near-series exhaust gas aftertreat-ment system using a Pre-Turbo-Catalyst (PTC) system that achieves lowest emissions for electrified diesel passenger cars to meet future ex-haust gas legislation. This exhaust gas aftertreatment system is developed using a state-of-the-art tool chain containing 1D & 3D simulation ap-proaches and testing near-series exhaust gas aftertreatment systems including PTC system under real-driving boundary conditions on the en-gine testbed. The innovative concept of an SCR PTC and a PTC bypass path solves the challenge of a thermal handshake between PTC and un-derfloor SCR System as well as the challenge of a particular filter regeneration. The development of a holistic operation strategy with adap-tive PTC bypass path operation and an urea-water-solution (UWS) injection based on exhaust gas and catalyst conditions enables lowest tail-pipe emissions. Using this concept, near-zero emissions can be reached in a wide range of operating scenarios while sustaining full drivability and highest efficiency. Advanced catalyst technologies enable a high emission conversion and lowest secondary emissions. These results have been achieved in the context of the "INES" ("Intelligentes Niedrigst Emissions System für die Diesel PKW Anwendung") project, funded by the Bundes-ministerium für Wirtschaft und Klimaschutz Ministry for Economic Affairs and Climate Action (BMWK) and addresses research of future mobility re-quirements.

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