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.

Date of Patent:
Feb. 10, 2026

Filed:

Jan. 24, 2022
Applicant:

Japan Aerospace Exploration Agency, Tokyo, JP;

Inventors:

Hiroshi Kobayashi, Tokyo, JP;

Kentaro Yokota, Tokyo, JP;

Akira Nishizawa, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 45/00 (2006.01); B64C 17/00 (2006.01); B64C 27/52 (2006.01); B64D 27/02 (2006.01); B64D 27/24 (2024.01); B64D 27/34 (2024.01); B64D 27/35 (2024.01); B64D 31/00 (2024.01); B64D 31/16 (2024.01); B64D 31/18 (2024.01); G01P 5/14 (2006.01); G01P 5/16 (2006.01); G01P 5/165 (2006.01); G01P 5/17 (2006.01); G01P 5/175 (2006.01); B64C 29/00 (2006.01);
U.S. Cl.
CPC ...
B64D 45/00 (2013.01); B64C 17/00 (2013.01); B64C 27/52 (2013.01); B64D 27/02 (2013.01); B64D 27/24 (2013.01); B64D 27/34 (2024.01); B64D 27/35 (2024.01); B64D 31/00 (2013.01); B64D 31/16 (2024.01); B64D 31/18 (2024.01); G01P 5/14 (2013.01); G01P 5/16 (2013.01); G01P 5/165 (2013.01); G01P 5/17 (2013.01); G01P 5/175 (2013.01); B64C 29/0033 (2013.01); B64C 29/0075 (2013.01);
Abstract

[Object] To detect airspeed and an airflow direction with respect to an airframe of a motorized aircraft with high accuracy without increasing the cost and weight and rapidly control attitudes of an electric propulsion system and the airframe in accordance with fluctuations of the airspeed and airflow direction. [Solving Means] An electric propulsion system control device includes: a first airspeed measurement unit that is mounted on an airframe of an aircraft and includes a first propulsion system parameter detector that detects a propulsion system parameter, the propulsion system parameter being a parameter of an electric propulsion system, the electric propulsion system being driven by an electric motor and rotating about a rotation axis as a center, and a first airspeed calculator that calculates first airspeed on a basis of the propulsion system parameter, the first airspeed being airspeed with respect to a first direction that is a direction of the rotation axis; a second airspeed measurement unit that is mounted on the airframe and measures second airspeed, the second airspeed being airspeed with respect to a second direction different from the first direction; and an airflow calculator that calculates airspeed and airflow direction with respect to the airframe on a basis of the first direction and the first airspeed and the second direction and the second airspeed.


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Kobayashi, Hiroshi. (2026). Electric propulsion system control device (U.S. Patent No. 12545428). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12545428

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