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:
Jun. 23, 2026
Filed:
Aug. 22, 2024
Audi Ag, Ingolstadt, DE;
Franz Honkomp, Ingolstadt, DE;
Marco Püschner, Gaimersheim, DE;
AUDI AG, Ingolstadt, DE;
Abstract
A method for operating a drive system is provided in which the drive system may include at least one electric drive unit and an auxiliary drive unit. The rotor shaft of at least one electric device unit may be mounted via plain bearings. The output shaft of the auxiliary drive unit may be mounted using roller bearings. The rotor shaft may be configured to be coupled to the output shaft. The method for operating the drive system may include determining an actual rotational speed of the electric drive unit, comparing the actual rotational speed with a limit rotational speed, deactivating the electric drive unit and activating the auxiliary drive unit if the actual rotational speed is lower than the limit rotational speed, and activating the electric drive unit if the actual rotational speed is greater than the limit rotational speed. A drive system and a vehicle are also provided.