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. 20, 2022
Filed:
Dec. 06, 2019
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Lei Chen, Stuttgart, DE;
Sebastian Paulus, Esslingen Am Neckar, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2016.01); H02P 6/14 (2016.01); H02P 21/18 (2016.01); H02P 21/22 (2016.01); H02P 6/18 (2016.01);
U.S. Cl.
CPC ...
H02P 21/18 (2016.02); H02P 6/18 (2013.01); H02P 21/22 (2016.02);
Abstract
Signal processing for determining a rotor position without the use of encoders. To this end, test signals are applied to the electrical currents in the phase connections of an electric machine, and the total currents in the phase connections of the electric machine are measured. The current responses to the test signals are determined by establishing the difference between the measured phase currents and the setpoint-value settings for the phase currents. On the basis of this difference, any method for calculating the rotor angle position can be performed.