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:
Apr. 19, 2005
Filed:
May. 15, 2002
Cho Y. Liang, Lafayette, IN (US);
Syamaia Srinivasan, Peoria, IL (US);
Evan E. Jacobson, Peoria, IL (US);
Cho Y. Liang, Lafayette, IN (US);
Syamaia Srinivasan, Peoria, IL (US);
Evan E. Jacobson, Peoria, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
A method and system may be provided to perform a process for controlling NOemissions of an target engine. In one embodiment of the invention, the process may include determining predicted NOvalues based on a model reflecting a predetermined relationship between control parameters and NOemissions, wherein the control parameters include ambient humidity, manifold pressure, manifold temperature, fuel rate, and engine speed associated with the engine. Further, the process may include adjusting the model based on a determination of whether the predicted NOvalues meet a predetermined criteria associated with actual NOvalues. The adjusted model may be stored in a memory associated with the engine whereby NOemissions exhausted from the engine may be reduced based on virtual NOemission values determined from the adjusted model.