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. 28, 2012
Filed:
Mar. 16, 2009
Evgeni Ganev, Torrance, CA (US);
Leroy Allen Fizer, Huntington Beach, CA (US);
Cuong Nguyen, Redondo Beach, CA (US);
Thay Chau, Torrance, CA (US);
Evgeni Ganev, Torrance, CA (US);
Leroy Allen Fizer, Huntington Beach, CA (US);
Cuong Nguyen, Redondo Beach, CA (US);
Thay Chau, Torrance, CA (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths and at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to at least one of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.