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.

Date of Patent:
Feb. 04, 2020

Filed:

Aug. 28, 2018
Applicant:

Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;

Inventors:

Marcel Kuhn, Kist, DE;

Roman Nestlinger, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/18 (2016.01); H02P 21/18 (2016.01);
U.S. Cl.
CPC ...
H02P 6/183 (2013.01); H02P 21/18 (2016.02); H02P 2203/11 (2013.01);
Abstract

A method and a device are disclosed for monitoring and compensating an electric machine of an electrically driven vehicle. The method includes the following steps: determining a first value of a position of a rotor using an angle sensor when the rotor is in a first position; determining a second value of the position of the rotor using an injection method when the rotor is in the first position; determining a first difference between the first value and the second value of the position of the rotor at the first position of the rotor; and checking whether the first difference falls below a predetermined threshold.


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