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:
Sep. 27, 2016
Filed:
May. 16, 2013
Renault S.a.s., Boulogne-billancourt, FR;
Ludovic Merienne, Gif sur Yvette, FR;
Adbelmalek Maloum, Chevilly la Rue, FR;
RENAULT s.a.s., Boulogne-Billancourt, FR;
Abstract
A method for controlling electromagnetic torque of a three-phase synchronous machine with permanent magnets, including measuring current delivered to the three phases of the machine, transposing the three measured currents into a direct current component and a quadratic current component using Park's transformation, and receiving an instruction for the quadratic current component. When the direct current component is negative, a defluxing control mode is activated in which the machine is controlled from a direct voltage component and a quadratic voltage component of the machine, the direct voltage component and the quadratic voltage component being determined in Park's plane.