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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 12140608 B1

PDFFull Text
Date of Patent:
Nov. 12, 2024

Filed:

Dec. 07, 2020

Systems and methods for starting a sensorless motor

Applicant:

Aerovironment, Inc., Arlington, VA (US);

Inventor:

Bart Dean Hibbs, Simi Valley, CA (US);

Assignee:

AEROVIRONMENT, INC., Arlington, VA (US);

Attorneys:

Concept IP LLP

Pejman Yedidsion

Eric Aagaard

Primary Examiner:

Alexander Satanovsky

Assistant Examiner:

Courtney G McDonnough

Int. Cl.
CPC ...
G01P 3/48 (2006.01); B64C 39/02 (2023.01); B64U 10/25 (2023.01); B64U 30/10 (2023.01); B64U 30/20 (2023.01); B64U 50/13 (2023.01); B64U 50/19 (2023.01); G01P 13/04 (2006.01); H02P 6/182 (2016.01); H02P 6/20 (2016.01);
U.S. Cl.
CPC ...
G01P 3/48 (2013.01); B64C 39/024 (2013.01); B64U 10/25 (2023.01); B64U 30/10 (2023.01); B64U 50/13 (2023.01); B64U 50/19 (2023.01); G01P 13/045 (2013.01); H02P 6/182 (2013.01); H02P 6/20 (2013.01); B64U 30/20 (2023.01);
Abstract

Systems, devices, and methods for: an unmanned aerial vehicle (UAV); at least one sensorless motor of the UAV, the at least one sensorless motor comprising a set of windings and a rotor; at least one propeller connected to the at least one sensorless motor; a microcontroller in communication with the at least one sensorless motor, wherein the microcontroller is configured to: determine a rotation rate of the at least one propeller; determine a rotation direction of the at least one propeller; provide an output to stop the at least one propeller if at least one of: the determined rotation rate is not a desired rotation rate and the determined rotation direction is not a desired rotation direction; and provide an output to start the at least one propeller if the at least one propeller is stopped at the desired rotation rate and the desired rotation direction.

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