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Super Ultra-Low NO X Emissions under Extended RDE Conditions - Evaluation of Light-Off Strategies of Advanced Diesel Exhaust Aftertreatment Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 02, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Super ultra-low NOX emission engine concepts are essential to comply with future emission legislations. To meet the future emission standards, application of advanced diesel exhaust aftertreatment systems (EATS), such as Diesel Oxidation Catalyst (DOC), Lean NOX Trap (LNT), Selective Catalytic Reduction coatings on Soot Filters (SCRF) and underfloor SCR, is required. Effective customized thermal management strategies are essential to ensure fast light-off of the EATS after engine cold start, and to avoid significant cooldown during part load operation.
The authors describes the investigation of different exhaust gas heating measures, such as intake throttling, late fuel injection, exhaust throttling, advanced exhaust cam phasing, retarded intake cam phasing, cylinder deactivation, full turbine bypass, electric catalyst heating and electrically heated intake manifold strategies. For those investigations, a steady-state GT-Power simulation model of a state-of-the-art EU6c 2.0 L diesel engine, equipped with high and low pressure exhaust gas recirculation (EGR) and 2-stage boosting, was used. The results were then transferred to FEV´s complete powertrain simulation platform. As representative vehicles, a C segment car, a compact SUV and a light duty van have been selected, and have been investigated using the Worldwide Harmonized Light Vehicle Test Procedure (WLTP) and extended Real Driving Emissions (RDE) cycles. The results for the different vehicles together with all EATS configurations and their heating strategies are being compared and evaluated to demonstrate the potential in terms of a fast light-off to guarantee optimal EATS operation conditions.
CitationDeppenkemper, K., Ehrly lng, M., Schoenen, M., and Koetter, M., "Super Ultra-Low NOX Emissions under Extended RDE Conditions - Evaluation of Light-Off Strategies of Advanced Diesel Exhaust Aftertreatment Systems," SAE Technical Paper 2019-01-0742, 2019, https://doi.org/10.4271/2019-01-0742.
Data Sets - Support Documents
|Unnamed Dataset 1|
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- Deppenkemper , K. , Özyalcin , C. , Ehrly , M. , Schoenen , M. et al. 1D Engine Simulation Approach for Optimizing Engine and Exhaust Aftertreatment Thermal Management for Passenger Car Diesel Engines by Means of Variable Valve Train (VVT) Applications SAE Technical Paper 2018-01-0163 2018 10.4271/2018-01-0163
- Blanco-Rodriguez , D. , Vagnoni , G. , and Holderbaum , B. EU6 C - Segment Diesel Vehicle s, a Challenging Segment to Meet RDE and WLTP Requirements 8th IFAC Symposium Advances in Automotive Control Sweden 2016
- Blanco-Rodriguez , D. , Vagnoni , G. , Aktas , S. , and Schaub , J. Model-Based Tool for the Efficient Calibration of Modern Diesel Powertrains MTZ Worldwide 77 10 54 58 2016