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:
May. 23, 2006
Filed:
Feb. 03, 2004
Paul Flynn, Fairview, PA (US);
Wolfgang Daum, Erie, PA (US);
Ahmed Sheikh, Erie, PA (US);
General Electric Company, Schenectady, NY (US);
Abstract
A system () and method of determining fuel demands of a locomotive engine () based upon engine speed and power produced by the engine at a given time, so to optimize the engine's power output for a load while reducing engine emissions. The engine control architecture comprises three interrelated control loops (). A primary feedback control loop () employs integral type control with gain scheduling to regulate engine speed to commanded slew rated based upon the locomotive's operator commands. A second control loop () provides an active, feed forward or predictive control consisting of a plurality of correction functions each utilizing a Taylor series having coefficients for each term in the series, the coefficients being modified to adapt the system to the engine with which it is used. A control third loop () optimizes reference speed slew rates and engine load rates by providing feedback of nominal engine fuel requirements or fuel demand, corrections to fuel demand based upon outputs from the second control loop, speed error values, and ambient conditions.