The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2004
Filed:
Aug. 13, 2002
Xinqun Gui, Naperville, IL (US);
Steven P. Gravante, Westchester, IL (US);
Shouxian Ren, Aurora, IL (US);
Pranab K. Das, Naperville, IL (US);
International Engine Intellectual Property Company, LLC, Warrenville, IL (US);
Abstract
An engine control system ( ) of a diesel engine ( ) that powers a motor vehicle processes data in execution of a strategy (FIG. ) to provide control of both timing and duration of forced regeneration of a diesel particulate filter ( ). The overall strategy is a hybrid of model-based and closed-loop control strategies. Redundant elements of the strategy (FIG. ) determine when forced regeneration is called for. Forced regeneration is initiated by retarding the timing of the start of main fuel injection ( ). Fueling is then adjusted ( ) both to enhance catalytic action and to make the process transparent to a driver of the vehicle.