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:
May. 09, 2017
Filed:
Apr. 03, 2014
Valeo Equipments Electriques Moteur, Creteil, FR;
Jean-Francois Duguey, Cachan, FR;
Gilbert Konan, Creteil, FR;
Francois-Xavier Bernard, Creteil, FR;
Daniel Pereira, Fresnes, FR;
Laurent Domenger, Choisy le Roi, FR;
Abdelaziz Azizi Samir, Thiais, FR;
Son Ha Tran, Creteil, FR;
Valeo Equipement Electriques Moteur, Creteil, FR;
Abstract
The device according to the invention controls a polyphase inverter () intended for powering from a DC current source (CC) a polyphase rotating electric machine (). The device is of the type of those generating commutation functions driving commutation elements () of the inverter in such a way as to obtain a reduction of the losses in the commutation elements and a decrease of an effective current in a decoupling capacitor () of the source (CC). According to the invention, this reduction and this decrease are obtained by means of a set of control strategies () determining the commutation functions by using additional degrees of freedom of the polyphase machine () with respect to a three-phase reference machine. The polyphase machine comprises first and second phase windings forming a first three-phase system () and a second three-phase system () with distinct neutral points () offset angularly by a predetermined angle of offset (Θ). The first and second phase windings are linked respectively to three first and three second power arms () formed by the commutation elements.