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:
Feb. 18, 2003
Filed:
May. 04, 2001
Applicant:
Inventors:
Andrzej Banaszuk, Manchester, CT (US);
Youping Zhang, Newark, CA (US);
Clas A. Jacobson, Tolland, CT (US);
Miroslav Krstic, San Diego, CA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/710 ;
U.S. Cl.
CPC ...
G06F 1/710 ;
Abstract
A frequency tracking extended Kalman filter ( ), responsive to combustor pressure ( ), produces in-phase ( ) and quadrature ( ) components of the estimated magnitude of the undesirable combustor pressure variations, for which compensation is to be achieved; a bidirectional minimum-seeking algorithm ( ) is used to select the phase ( ) of a process adjusting input variable ( ), such as fuel that is in addition to the main fuel flow used for power control purposes.