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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.:

US 8008878 B1

PDFFull Text
Date of Patent:
Aug. 30, 2011

Filed:

Aug. 05, 2008

System for seamless estimation of speed and/or position, including standstill of a permanent magnet rotor of an electric motor

Applicants:

Fritz Rainer Götz, Oberasbach, DE;

Viktor Barinberg, Nürnberg, DE;

Inventors:

Fritz Rainer Götz, Oberasbach, DE;

Viktor Barinberg, Nürnberg, DE;

Assignee:

Baumuller Nurnberg Gmb, Nuremberg, DE;

Attorneys:

Frank H. Foster

Kremblas & Foster

Primary Examiner:

Walter Benson

Assistant Examiner:

Antony M Paul

Int. Cl.
CPC ...
H02P 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Procedure for determining the electrical drive speed (ω) and/or position (φ) in a permanent magnet rotor of a brushless electrical linear or rotary motor from a measurement of a multi-phase stator current (i,i). Speed is determined using a mathematical motor model (). From the influence of a rotor reverse EMK that affects the stator current (i,i) conclusions are made about the rotor speed (ω) and/or position (φ) and an appropriate model speed value () is generated.

Find Patent Forward Citations

Götz, Fritz. (2011). System for seamless estimation of speed and/or position, including standstill of a permanent magnet rotor of an electric motor (U.S. Patent No. 8008878). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8008878

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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