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:
Dec. 31, 2013
Filed:
Mar. 25, 2011
Stéphane Fourmy, Vitry sur Seine, FR;
Raymond Rechdan, Villecresnes, FR;
Stéphane Fourmy, Vitry sur Seine, FR;
Raymond Rechdan, Villecresnes, FR;
Valeo Equipements Electriques Moteur, Creteil, FR;
Abstract
A rotary electrical machine regulation device of the type which can control the electrical machine using a predetermined set value of a direct voltage (B+) of the on-board electrical network of the vehicle in which the machine is installed. An excitation current (EXC) is supplied to the alternator (machine), and has a duty cycle (RC) which is determined by a digital processing block (), on the basis of an error voltage between the predetermined set value and the direct voltage of the electrical network. Accordingly, a system () is provided herein for making the digital block electrically self-sufficient. The system includes a voltage maintenance device with a self-sufficient capacitor (), and a self-sufficient control element ().