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:
Aug. 09, 2011
Filed:
Sep. 15, 2008
Bradley Bailey, Peoria, IL (US);
Frederick Beach, East Peoria, IL (US);
Matthew Hendrickson, Peoria, IL (US);
Bradley Bailey, Peoria, IL (US);
Frederick Beach, East Peoria, IL (US);
Matthew Hendrickson, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A system for detecting a short circuit in a direct current (DC) link (), wherein the DC link () is coupled with a rectifier () which includes a set of rectifier diode pairs (). During operation, a controller () receives a set of outputs of a power generator, a set of machine parameters, and a set of diagnostic values. Next, the controller () determines a set of expected operating values corresponding to the set of diagnostic values. The controller () then compares diagnostic values to corresponding expected operating values. If the difference between the diagnostic values and the expected operating values exceeds a threshold, the controller () provides a flag to indicate that a short circuit condition exists.