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:
Mar. 31, 2026
Filed:
May. 31, 2023
Audi Ag, Ingolstadt, DE;
Florian Bittner, Gaimersheim, DE;
Stephan Brüske, Ingolstadt, DE;
Bastian Heidler, Kranzberg, DE;
Mathias Korn, Regensburg, DE;
AUDI AG, Ingolstadt, DE;
Abstract
A method for operating an electric machine including a rotor and a stator is connected to a first or a second power electronics assembly (PEA), the first or the second PEA including a circuit arrangement that produces a freewheeling condition or an active short circuit condition for a winding of the rotor or the stator, to a DC voltage network having a battery, and the first or the second PEA including an inverter formed by the circuit arrangement. The method includes, in response to a primary fault signal indicating a fault the first or the second PEA, actuating the first or the second PEA to produce the freewheeling condition, and in response to a secondary fault signal indicating a nonreceptiveness of the battery for power fed by the electric machine to the DC voltage network, actuating both the first and the second PEA to produce the active short circuit condition.