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:
Nov. 15, 2005
Filed:
Jun. 11, 2003
David J. Andres, Washington, IL (US);
Gregory D. Hoenert, Metamora, IL (US);
Thomas J. Crowell, Peoria, IL (US);
George E. Donaldson, Chillicothe, IL (US);
David J. Andres, Washington, IL (US);
Gregory D. Hoenert, Metamora, IL (US);
Thomas J. Crowell, Peoria, IL (US);
George E. Donaldson, Chillicothe, IL (US);
Caterpillar Inc, Peoria, IL (US);
Abstract
Electronically controlled internal combustion engines are operated based upon control calibration algorithms that can come in a variety of forms, including maps, equations, surfaces and other mathematical techniques. Each combination of a control calibration algorithm and a particular engine must satisfy certain constraints such as customer acceptance and value demands, and should have the ability to perform a variety of expected duty cycles for the given engine application. A plurality of different engine control calibration algorithms are made available to an engine control system. Each of the engine calibration algorithms corresponds to a particular duty cycle while being optimized for a performance parameter such as reduced emissions, while meeting a variety of constraints.