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. 14, 2012
Filed:
Jul. 09, 2008
Bruce H. Hein, East Peoria, IL (US);
Thomas M. Sopko, East Peoria, IL (US);
Gregory J. Speckhart, Peoria, IL (US);
Jackson Wai, Dunlap, IL (US);
Bruce H. Hein, East Peoria, IL (US);
Thomas M. Sopko, East Peoria, IL (US);
Gregory J. Speckhart, Peoria, IL (US);
Jackson Wai, Dunlap, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method of controlling a power converter in an electric drive machine is disclosed. The method may include determining a first switching frequency and determining a second switching frequency. The method may also include comparing the first switching frequency and the second switching frequency. The method may further include selecting a power converter switching frequency from the lesser of the first switching frequency and the second switching frequency to control a power converter.