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. 25, 2003
Filed:
Mar. 10, 2003
Applicant:
Inventor:
Rogelio Rodriguez, Berwyn, IL (US);
Assignee:
International Engine Intellectual Property Company, LLC, Warrenville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G60T 7/12 ;
U.S. Cl.
CPC ...
G60T 7/12 ;
Abstract
An engine control system ( ) and method for improving stability of engine running speed when torque subtractions (TTS) from gross torque change while the engine ( ) is running at a constant speed, such as at low idle speed. Engine speed error data (Nerror) is processed according to one or more control functions ( ) each having gain determined by the torque subtraction data value via function generators ( ) to develop fueling adjustment data (P-FGT, I-FGT, D-FGT) for compensating desired engine fueling (MFDES) for the torque subtraction data (TTS).