Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2007-12-17
2009-06-09
Nguyen, Tu M (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S286000, C060S297000, C060S303000
Reexamination Certificate
active
07543446
ABSTRACT:
A system and method are provided for controlling regeneration of exhaust gas aftertreatment components coupled to an internal combustion engine. For example, the particulate load of a particulate filter is monitored and a road speed of the vehicle is determined. If the particulate load is greater than a particulate load threshold and the road speed is greater than a road speed threshold, regeneration of the particulate filter is initiated. As another example, the sulfur oxide load (SOx) of a NOx catalyst is also monitored, and if the SOx load is greater than a SOx threshold while the particulate filter is being regenerated, regeneration of the particulate filter is terminated and SOx regeneration of the NOx catalyst is initiated.
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Cunningham Michael J.
Currier Neal W.
Fier James J.
Geckler Samuel C.
Kocher Lyle E.
Barnes & Thornburg LLP
Cummins Inc.
Nguyen Tu M
Schelkopf J. Bruce
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