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. 19, 2009
Filed:
Jan. 09, 2007
Evgeni Ganev, Torrance, CA (US);
Edward L. Johnson, Torrance, CA (US);
Cuong V. Nguyen, Redondo Beach, CA (US);
Evgeni Ganev, Torrance, CA (US);
Edward L. Johnson, Torrance, CA (US);
Cuong V. Nguyen, Redondo Beach, CA (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Overspeed protection of sensorless electric drives is needed in the aerospace industry. Methods for overspeed protection may include software implementations, hardware implementations or combinations thereof. Typical high-speed rotating machinery is designed to sustain overspeed operation of up to 50% beyond maximum normal operation. This requirement leads to substantial penalties in weight and volume. The methods of the present invention may allow for an opportunity to reduce this overspeed design to about 5 to 15%, typically about 7%.