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:
Nov. 22, 2016
Filed:
Aug. 12, 2014
Sagem Défense Sécurité, Boulogne-Billancourt, FR;
Joël Vanoli, Boulogne-Billancourt, FR;
Tony Fourmont, Boulogne-Billancourt, FR;
Safran Electronics & Defense, Boulogne-Billancourt, FR;
Abstract
The invention concerns a method for detecting a failure in a three-phase alternator connected to a three-phase rectifier bridge. The method comprises the following steps — rectifying () the voltages generated by the three-phase alternator; — adding () the rectified voltages taken at the first and second phases in order to obtain a voltage sum; — subtracting (), from said voltage sum, twice the rectified voltage taken at the third phase, in order to obtain a voltage difference; — comparing () the voltage difference to a high threshold and a low threshold; — detecting () a failure when the voltage difference is less than said low threshold or when the voltage difference is greater than said high threshold. The invention also concerns a device for detecting failures and an associated computer programme.