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:
Aug. 28, 2018
Filed:
Jun. 22, 2015
Audi Ag, Ingolstadt, DE;
Uwe Feldmann, Nassenfels, DE;
Audi AG, Ingolstadt, DE;
Abstract
A method for operating a drive device of a motor vehicle which has at least one electric machine with a phase angle detector and an output shaft operatively connectable with the electric machine, includes: when a return value of the phase angle detector of the electric machine is constant, performing a first diagnostic operating mode of the drive device, in which the operative connection between the electric machine and the output shaft is interrupted, subsequent, the electric machine is controlled by open lop control to a defined rotational speed, and when the return value continues to be constant after controlling the electric machine to the defined rotational speed, a first operating state of the phase angle detector is recognized and otherwise a correct function of the phase angle detector is recognized.