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. 21, 2020
Filed:
Sep. 10, 2015
Valeo Equipements Electriques Moteur, Creteil, FR;
Sidath Diao, Saint Maur Des Fosses, FR;
Zaatar Makni, Chilly Mazarin, FR;
Demba Diallo, Palaiseau, FR;
Valeo Equipments Electriques Moteur, Creteil, FR;
Abstract
The method according to the invention enables the diagnosis () of phase current sensor defects in a system for controlling a synchronous rotary electrical machine of a motor vehicle. According to the invention, the method takes into account the differences (îd, lq) between measurements provided () by the sensors, and nominal values of the phase currents (ia, ib, ic) in order to diagnose defects. The differences are calculated () in a rotating Park reference frame () and are separate from an electromechanical model of the machine. The method detects sensor defects if the differences are substantially non-zero () and an offset sensor defect if a residual pulsation (ω res) of the differences is substantially equal to a measured speed (w) of the control system.