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:
Jan. 02, 2024
Filed:
Jul. 25, 2018
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventor:
Yang Gao, Västerås, SE;
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 5/74 (2006.01); B25J 9/12 (2006.01); B25J 9/16 (2006.01);
U.S. Cl.
CPC ...
H02P 5/74 (2013.01); B25J 9/12 (2013.01); B25J 9/1664 (2013.01);
Abstract
A method for controlling an electric motor, the method including determining a planned reference speed of the electric motor; determining a pulse-width modulation (PWM) switching frequency based on the planned reference speed; and controlling the electric motor with an alternating current produced by PWM switching with the determined PWM switching frequency. A control system for controlling an electric motor and an industrial robot including a control system, are also provided.