Invention Grant
- Patent Title: Aircraft and flight system
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Application No.: US15921881Application Date: 2018-03-15
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Publication No.: US10717523B2Publication Date: 2020-07-21
- Inventor: Hideomi Sakuma
- Applicant: Ricoh Company, Ltd.
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Xsensus LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@44f1c37a com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6aae917e
- Main IPC: B64C29/02
- IPC: B64C29/02 ; B64C11/46 ; B64C39/02 ; G05D1/08

Abstract:
An aircraft includes propellers at a center of the airframe; a first power source; a pitch adjuster to change pitch angles of the propellers; a plurality of attitude control propellers; a second power source lower in output than the first power source; and a control circuit to control attitude of the airframe. The control circuit includes a first yaw rotation generation control unit to control first yaw rotation generated by torques of the propellers with the pitch adjuster; and a second yaw rotation generation control unit to control a second yaw rotation generated by torques generated by a difference in rotation speed between the attitude control propellers. The control circuit is configured to control the first yaw rotation generation control unit and the second yaw rotation generation control unit in accordance with a magnitude of a command value of yaw rotation.
Public/Granted literature
- US20180265191A1 AIRCRAFT AND FLIGHT SYSTEM Public/Granted day:2018-09-20
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