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Autoselective WFF 2009-01-1927.pdf (1.32 MB)

Low power auto selective regeneration of monolithic wall flow diesel particulate filters

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conference contribution
posted on 2011-08-15, 09:58 authored by Andrew M. Williams, Colin GarnerColin Garner, J.E. Harry, David W. Hoare, D. Mariotti, Karim S. Ladha, John W. Proctor, Y. Yang, J.G.P. Binner
This paper presents research into a novel autoselective electric discharge method for regenerating monolithic wall flow diesel particulate filters using low power over the entire range of temperatures and oxygen concentrations experienced within the exhaust systems of modern diesel engines. The ability to regenerate the filter independently of exhaust gas temperature and composition significantly reduces system complexity compared to other systems. In addition, the system does not require catalyst loading and uses only massproduced electronic and electrical components, thus reducing the cost of the after-treatment package. Purpose built exhaust gas simulation test rigs were used to evaluate, develop and optimise the autoselective regeneration system. On-engine testing demonstrated the performance of the autoselective regeneration process under real engine conditions. Typical regeneration performance is presented and discussed with the aid of visual observations, particulate mass measurements, back pressure measurements and energy consumption. The research demonstrates the potential of the novel autoselective method for diesel particulate filter regeneration. The autoselective process does not require an exhaust by-pass and enables the system to be low power, catalyst-free and exhaust temperature independent.



  • Mechanical, Electrical and Manufacturing Engineering


WILLIAMS, A.W. ... et al, 2009. Low power auto selective regeneration of monolithic wall flow diesel particulate filters. 2009-01-1927. IN: Proceedings of SAE International Powertrains, Fuels and Lubricants Meeting, Florence, Italy, 15th-17th June.


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SAE Technical Paper;2009-01-1927


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