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:
Jul. 19, 2016
Filed:
Apr. 08, 2014
Rolls-royce Plc, London, GB;
Huw Llewellyn Edwards, Derby, GB;
Parag Vyas, Nottingham, GB;
ROLLS-ROYCE plc, London, GB;
Abstract
A method of controlling an aircraft electrical system (). The electrical system () comprises an alternating current electrical machine () comprising a plurality of phases, each phase having a power rating, the electrical machine () being configured to operate on failure of one or more phases. The method comprises: determining a power requirement; sensing a fault of one or more phases of the electrical machine (), and controlling the electrical machine () to operate in a fault condition, in which the remaining phases of the electrical machine () provide the electrical power requirement; and providing an overrating signal to a flight computer () of the aircraft () where the power provided by each phase exceeds the power rating of the respective phase.