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. 23, 2025
Filed:
Jul. 25, 2023
Audi Ag, Ingolstadt, DE;
Daniel Ruppert, Lenting, DE;
Audi AG, Ingolstadt, DE;
Abstract
A motor vehicle, having an externally excited synchronous machine and an inverter associated with the synchronous machine and connected to a high-voltage network and an exciter circuit associated with the synchronous machine to energize an exciter winding of the synchronous machine, comprising a power electronics layout having at least one intermediate circuit capacitor at the high-voltage network side, wherein the motor vehicle comprises a cooling device for cooling the power electronics layout and a voltage surge protection circuit is associated with the intermediate circuit capacitor, comprising at least one varistor, which becomes electrically conducting by the voltage imposed on it when a voltage threshold value is exceeded, wherein at least the one varistor of the voltage surge protection circuit forms part of an exciter module comprising the exciter circuit and a housing, which is thermally coupled to a cooling element of the cooling device for cooling the exciter module.