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. 17, 2015
Filed:
Nov. 21, 2012
Sagem Defense Securite, Boulogne Billancourt, FR;
Frederic Marques, Boulogne Billancourt, FR;
Matthieu Aubron, Boulogne Billancourt, FR;
Jerome Piaton, Boulogne Billancourt, FR;
Guillaume Mercier, Boulogne Billancourt, FR;
Guillaume Percheron, Boulogne Billancourt, FR;
Gaetan Princay, Boulogne Billancourt, FR;
Sagem Defense Securite, Boulogne-Billancourt, FR;
Abstract
An actuator comprising at least one multiphase motor having phases facing a rotor secured to an outlet shaft associated with a braking member and provided with a connection to a movable element that is to be moved, the motors and the braking member being connected to at least one motor control unit for controlling the motors by powering their phases. The motor has at least four phases wound in such a manner as to avoid a neutral point, and in that the control unit has one single-phase inverter per phase and is arranged to implement a nominal, three-phase mode of control, and a degraded mode of control that enables the rotor to be driven in rotation by powering two non-collinear phases thereof.