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:
Sep. 02, 2014
Filed:
Jan. 10, 2013
Applicant:
Rolls-royce Engine Control Systems Ltd., Derby, GB;
Inventor:
Peter Douglas Smout, Solihull, GB;
Assignee:
Rolls-Royce Controls and Data Services Limited, Derby, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 9/02 (2006.01); H02P 25/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fault tolerant electric drive system includes an alternator, a motor controller and an electric motor, wherein the alternator and motor each have a plurality of corresponding independent phase windings, the motor controller having a plurality of independent phase drives corresponding to the phase windings, and a plurality of independent electric drive phases is defined by connecting each corresponding phase winding of the alternator and motor to a corresponding phase drive of the motor controller.