Diesel exhaust control during limp-home mode

Details Diesel exhaust control during limp-home mode Diesel exhaust control during limp-home mode

2011-08-09

2011-08-09

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S295000, C060S299000, C060S300000, C060S316000

Reexamination Certificate

active

07992377

ABSTRACT:
A method of extending emissions performance of an exhaust after-treatment system of a vehicle that includes a dosing agent includes determining a level of a dosing agent source, selectively entering a limp-home mode based on the level and monitoring a catalyst temperature during said limp-home mode. Operation of an engine is regulated to increase the catalyst temperature when the catalyst temperature is less than a threshold catalyst temperature during the limp-home mode.

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Brent D. Hendrickson; Entitled: “Method of Monitoring A Dosing Agent Supply for Treating Exhaust”; Filed Dec. 14, 2006; 23 Pages.
Michael A. Potter et al.; Entitled: Emissions Conformance For An Exhaust After-Treatment System Having A Dosing Agent Supply; Filed Dec. 14, 2006; 26 Pages.

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