Pre-turbo-DeNOx exhaust aftertreatment: simulation and testing

<div class="section abstract"><div class="htmlview paragraph">This study shows the newest results of a near-series pre-turbo-catalyst (PTC) system reaching lowest emissions for electrified diesel passenger cars to address future emission legislation. The PTC system is developed using a state-of-the-art tool chain containing 1D & 3D simulation approaches and testing near-series exhaust gas aftertreatment systems under real-driving boundary conditions. The innovative concept of a selective catalytic reduction (SCR) PTC and a PTC bypass path solve the challenge of a thermal handshake between PTC and underfloor SCR System as well as the challenge of a particular filter regeneration. The development of adaptive PTC bypass path operation strategies based on exhaust gas and catalyst conditions enables lowest NO<sub>x</sub> and NH<sub>3</sub>. Using this concept, zero-impact NO<sub>x</sub> emissions, that don’t impact cities air quality, 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 Niedrigstemissionssystem für die Diesel PKW Anwendung”) project, funded by the Bundesministerium für Wirtschaft und Klimaschutz, Ministry for Economic Affairs and Climate Action (BMWK) and addresses research of future mobility requirements.</div></div>

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A Holistic Approach For Near Zero Emission Diesel Vehicles Using A Pre-Turbo-Catalyst-System – Ready For EU 7

Conin¹,

Knaf²,

Fiore³

et al. 2023

SAE Technical Paper Series

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Pre-turbo-DeNOx exhaust aftertreatment: simulation and testing

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A Holistic Approach For Near Zero Emission Diesel Vehicles Using A Pre-Turbo-Catalyst-System – Ready For EU 7

A Holistic Approach For Near Zero Emission Diesel Vehicles Using A Pre-Turbo-Catalyst-System – Ready For EU 7

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