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Regeneration Strategies for Gasoline Particulate Filters
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 02, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Gasoline particulate filters (GPFs) are extremely effective at reducing tailpipe emissions of particulate mass and particulate number. Especially in the European and Chinese markets, where a particulate number standard is legislated, we see gasoline particulate filters being deployed in production on gasoline direct injected engines. Due to the high temperature in gasoline exhaust, most applications are expected to be passively regenerating without the help of an active regeneration strategy. However, for the few cases where a customer drive cycle has consistently low speed over a long time frame, an active regeneration strategy may be required. This involves increasing the exhaust temperature at the GPF up to around 600 degC so that soot can be combusted. We compare two different ways of achieving these temperatures, namely spark retard and air fuel ratio modulation. The former generates heat in the engine, the latter generates heat in one or more catalysts in the exhaust system. We list some benefits and drawbacks of both methods, and validate our work with experimental data.
CitationVan Nieuwstadt, M., Shah, A., Serban, E., and Martin, D., "Regeneration Strategies for Gasoline Particulate Filters," SAE Technical Paper 2019-01-0969, 2019, https://doi.org/10.4271/2019-01-0969.
Data Sets - Support Documents
|Unnamed Dataset 1|
- Richter , J. , Klingmann , R. , Spiess , S. , and Wong , K.F. Application of Catalyzed Gasoline Particulate Filters to GDI Vehicles SAE Int. J. Engines 5 3 1361 1370 2012 10.4271/2012-01-1244
- Van Nieuwstadt , M. and Ulrey , J. Control Strategies for Gasoline Particulate Filters SAE Technical Paper 2017-01-0931 2017 10.4271/2017-01-0931
- Yue , H. , Lehmen , A. , Van Nieuwstadt , M. , Mason , G. et al. Impacts of Drive Cycle and Ambient Temperature on Modelled Gasoline Particulate Filter Soot Accumulation and Regeneration SAE Technical Paper 2018-01-0949 2018 10.4271/2018-01-0949
- Brandt , E.P. , Wang , Y.Y. , and Grizzle , J.W. Dynamic Modeling of a Three Way Catalyst for SI Engine Exhaust Emissions Control IEEE Transactions on Control Systems Technology 2000 10.1109/87.86850