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:
Feb. 23, 2016
Filed:
Dec. 27, 2013
Applicants:
Long Wu, Fargo, ND (US);
Anthony Weber, Moline, IL (US);
Lav Thyagarajan, West Fargo, ND (US);
Inventors:
Assignee:
DEERE & COMPANY, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/28 (2006.01); H02P 27/08 (2006.01); H02P 21/00 (2006.01); H02P 21/14 (2006.01);
U.S. Cl.
CPC ...
H02P 27/08 (2013.01); H02P 21/0035 (2013.01); H02P 21/148 (2013.01); H02P 2207/05 (2013.01);
Abstract
At least one example embodiment discloses a control device for controlling an alternating current (ac) machine. The control device includes a processor configured to select a modulation mode from a plurality of modulation modes, determine a plurality of present phase voltages corresponding to phases of an inverter based on the selected modulation mode, the determination compensating for deadtimes associated with the selected modulation mode and phases of the inverter, the inverter configured to drive the ac machine and determine an estimated terminal voltage based on the plurality of present phase voltages.