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Characterization of In-Cylinder Techniques for Thermal Management of Diesel Aftertreatment
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 29, 2007 by SAE International in United States
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One challenge in meeting emission regulations with catalytic aftertreatment systems is maintaining the proper catalyst temperatures that enable the catalytic devices to perform the emissions reduction. In this study, in-cylinder techniques are used to actively control the temperature of a catalyzed diesel particulate filter (DPF) in order to raise the DPF temperature to induce particulate oxidation. The performance of four strategies is compared for two different starting DPF temperatures (150°C and 300°C) on a 4-cylinder 1.7-liter diesel engine. The four strategies include: (1) addition of extra fuel injection early in the combustion cycle for all four cylinders, (2) addition of extra fuel injection late in the combustion cycle for all four cylinders, (3) operating one-cylinder with extra fuel injection early in the combustion cycle, and (4) operating one-cylinder with extra fuel injection late in the combustion cycle. In cases (3) and (4), the cylinder operating with extra fuel injection is changed frequently to avoid oil dilution complications. In addition to the in-cylinder strategies, an in-pipe fuel addition technique for thermal management was studied for comparison. Results show that at starting temperatures above 300°C, late cycle injection strategies that cause temperature rise from exotherms created by unburned fuel components result in higher temperature rise for a given fuel penalty. At the low temperature of 150°C, early injection strategies that create temperature rise from both combustion and light reductant exotherms are preferred due to the inability of the catalyst to oxidize unburned fuel from late injection strategies.
CitationParks, J., Huff, S., Kass, M., and Storey, J., "Characterization of In-Cylinder Techniques for Thermal Management of Diesel Aftertreatment," SAE Technical Paper 2007-01-3997, 2007, https://doi.org/10.4271/2007-01-3997.
- Bouchez, M. Dementhon, J. B. “Strategies for the Control of Particulate Trap Regeneration” SAE Technical Paper Series 2000-01-0472 2000
- Mayer, A. Lutz, T. Lammle, C. Wyser, M. Legerer, F. “Engine Intake Throttling for Active Regeneration of Diesel Particle Filters” SAE Technical Paper Series 2003-01-0381 2003
- Toorisaka, H. Minamikawa, J. Narita, H. Muramatsu, T. Kominame, T. Sone, T. “DPR Developed for Extremely Low PM Emissions in Production Commercial Vehicles” SAE Technical Paper Series 2004-01-0824 2004
- Kong, Y. Kozakiewicz, T. Johnson, R. Huffmeyer, C. Huckaby, J. Abel, J. Baurley, J. Duffield, K. “Active DPF Regeneration for 2007 Diesel Engines” SAE Technical Paper Series 2005-01-3509 2005
- Singh, P. Thalagavara, A. M. Naber, J. D. Johnson, J. H. Bagley, S. T. “An Experimental Study of Active Regeneration of an Advanced Catalyzed Particulate Filter by Diesel Fuel Injection Upstream of an Oxidation Catalyst” SAE Technical Paper Series 2006-01-0879 2006
- Nickolas, S. G. White, A. D. Kotrba, A. J. Yetkin, A. “Engine Tests of an Active Diesel Particulate Filter Regeneration System” SAE Technical Paper Series 2006-01-1089 2006
- Joshi, A. Chatterjee, S. Sawant, A. Akerlund, C. Andersson, S. Blomquist, M. Brooks, J. “Development of an Actively Regenerating DPF System for Retrofit Applications” SAE Technical Paper Series 2006-01-3553 2006
- Bach, E. Zikordidse, G. Sandig, R. Lemaire, J. Mustel, W. Naschke, W. Bestenreiner, G. M. Bruck, R. “Combination of Different Regeneration Methods for Diesel Particulate Traps” SAE Technical Paper Series 980541 1998
- Nieuwstadt, M. Upadhyay, D. Goebelbecker, M. Ruona, W. “Experiments in Active Diesel Particulate Filter Regeneration” SAE Technical Paper Series 2003-01-3360 2003
- West, B. Huff, S. Parks, J. Swartz, M. Graves, R. “In-Cylinder Production of Hydrogen During Net-Lean Diesel Operation” SAE Technical Paper Series 2006-01-0212 2006
- West, B. Huff, S. Parks, J. Lewis, S. Choi, J.-S. Partridge, W. Storey, J. “Assessing Reductant Chemistry During In-Cylinder Regeneration of Diesel Lean NOx Traps” SAE Technical Paper Series 2004-01-3023 2004
- Parks, J. Huff, S. Pihl, J. Choi, J.-S. West, B. “Nitrogen Selectivity in Lean NOx Trap Catalysis with Diesel Engine In-Cylinder Regeneration” SAE Technical Paper Series 2005-01-3876 2005
- Huff, S. West, B. Parks, J. Swartz, M. Green, J. Graves, R. “In-Cylinder Regeneration of Lean NOx Trap Catalysts Using Low Temperature Combustion” SAE Technical Paper Series 2006-01-1416 2006
- Partridge, W.P. Storey, J.M.E. Lewis, S.A. Smithwick, R.W. DeVault, G.L. Cunningham, M.J. Currier, N.W. Yonushonis, T.M. “Time-Resolved Measurements of Emission Transients By Mass Spectrometry,” SAE Transactions - Journal of Fuels & Lubricants 109 2992 2000
- Guo, G. Xu, N. Laing, P. M. Hammerle, R. H. Maricq, M. M. “Performance of a Catalyzed Diesel Particulate Filter System During Soot Accumulation and Regeneration” SAE Technical Paper Series 2003-01-0047 2003