公开(公告)号：US11511854B2

公开(公告)日：2022-11-29

申请号：US16395415

申请日：2019-04-26

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity ,  David D. Billingsley ,  Brad S. Galloway ,  Richard M. Chapman ,  Daniel Thomas Otradovec ,  Graham Schill

IPC: B64C29/00 ,  B64C27/08 ,  B64C27/26

Abstract: An aircraft employs articulated, variable-position electric rotors having different operating configurations and transitions therebetween, as well as variable-pitch airfoils or blades, for generating vectored thrust in the different configurations. Control circuitry generates rotor position signals and blade pitch signals to independently control rotor thrust, rotor orientation and rotor blade pitch of the variable-position rotors in a manner providing (i) the transitions among the operating configurations for corresponding flight modes of the aircraft, which may include both vertical takeoff and landing (VTOL) mode as well as a forward-flight mode, and (ii) commanded thrust-vectoring maneuvering of the aircraft in the different configurations, including tailoring blade pitch to optimize aspects of aircraft performance.

公开(公告)号：US20220306294A1

公开(公告)日：2022-09-29

申请号：US17212146

申请日：2021-03-25

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity

IPC: B64C39/02 ,  B64C13/02 ,  B64D45/00 ,  G05D1/10 ,  G08G5/00

Abstract: A flight control arrangement for a hybrid aircraft includes a fixed-wing flight (F/W) control module and vertical takeoff/landing flight (VTOL) control module. The F/W control module is an integrated component having a respective network interface connected to an aircraft data network via which it provides fixed-wing control output to network-connected fixed-wing flight components including one or more horizontal-thrust components. The VTOL control module is also an integrated component having a respective network interface to the aircraft data network via which the VTOL control module (1) observes flight status as reflected in network messages originated by the fixed-wing flight control module, and (2) based on the observed flight status, generates VTOL control output to network-connected VTOL flight components including one or more vertical-thrust components, to control VTOL flight as well as transitions to and from fixed-wing flight.

公开(公告)号：US12151801B2

公开(公告)日：2024-11-26

申请号：US17212146

申请日：2021-03-25

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity

IPC: B64C13/02 ,  B64D45/00 ,  B64U10/20 ,  G05D1/00 ,  G08G5/00 ,  B64U10/25 ,  B64U30/20 ,  B64U50/13 ,  B64U70/30

Abstract: A flight control arrangement for a hybrid aircraft includes a fixed-wing flight (F/W) control module and vertical takeoff/landing flight (VTOL) control module. The F/W control module is an integrated component having a respective network interface connected to an aircraft data network via which it provides fixed-wing control output to network-connected fixed-wing flight components including one or more horizontal-thrust components. The VTOL control module is also an integrated component having a respective network interface to the aircraft data network via which the VTOL control module (1) observes flight status as reflected in network messages originated by the fixed-wing flight control module, and (2) based on the observed flight status, generates VTOL control output to network-connected VTOL flight components including one or more vertical-thrust components, to control VTOL flight as well as transitions to and from fixed-wing flight.

公开(公告)号：US11919630B2

公开(公告)日：2024-03-05

申请号：US16993516

申请日：2020-08-14

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity ,  Stephen W. Miller

IPC: B64C29/00

CPC classification number: B64C29/0033

Abstract: A separated lift-thrust (SLT) aircraft includes a longitudinal-thrust engine and articulated electric rotors, at least some of which are variable-position rotors having variable orientations based on rotor position signals. Control circuitry independently controls thrust of the longitudinal-thrust engine and the thrust and orientation of each of the variable-position rotors, relative to the aircraft lifting surface and longitudinal thrust engine, to provide for commanded thrust-vectoring maneuvering of the aircraft during VTOL, fixed wing flight, and intermediate transitional states, including maintenance of a desired pose of the lifting surface independent of orientation of the rotor orientations when hovering the aircraft in windy conditions. A flight and navigation control system automates flight maneuvers and maintains desired aircraft pose and position relative to static or dynamic coordinates during station keeping, tracking, avoidance, or convergence maneuvers.

公开(公告)号：US11724801B2

公开(公告)日：2023-08-15

申请号：US16178892

申请日：2018-11-02

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity ,  David D. Billingsley ,  Brad S. Galloway ,  Richard M. Chapman

IPC: B64C29/00 ,  B64C39/10 ,  B64C1/26 ,  B64C11/44 ,  B64C11/46 ,  B64C39/02 ,  B64D27/24 ,  G05D1/08

CPC classification number: B64C29/0033 ,  B64C39/10 ,  B64C1/26 ,  B64C11/44 ,  B64C11/46 ,  B64C39/024 ,  B64C2039/105 ,  B64C2201/021 ,  B64C2201/024 ,  B64C2201/028 ,  B64C2201/042 ,  B64C2201/088 ,  B64C2201/104 ,  B64C2201/108 ,  B64C2201/165 ,  B64C2211/00 ,  B64D27/24 ,  G05D1/0858

Abstract: An aircraft includes an airframe having a fixed-wing section and a plurality of articulated electric rotors, at least some of which are variable-position rotors having different operating configurations based on rotor position. A first operating configuration is a vertical-flight configuration in which the rotors generate primarily vertical thrust for vertical flight, and a second operating configuration is a horizontal-flight configuration in which the rotors generate primarily horizontal thrust for horizontal fixed-wing flight. Control circuitry independently controls rotor thrust and rotor orientation of the variable-position rotors to provide thrust-vectoring maneuvering. The fixed-wing section may employ removable wing panels so the aircraft can be deployed both in fixed-wing and rotorcraft configurations for different missions.

公开(公告)号：US20210107640A1

公开(公告)日：2021-04-15

申请号：US16993516

申请日：2020-08-14

Applicant: Textron Systems Corporation

Inventor： Sean Marshall Baity ,  Stephen W. Miller

IPC: B64C29/00

Abstract: A separated lift-thrust (SLT) aircraft includes a longitudinal-thrust engine and articulated electric rotors, at least some of which are variable-position rotors having variable orientations based on rotor position signals. Control circuitry independently controls thrust of the longitudinal-thrust engine and the thrust and orientation of each of the variable-position rotors, relative to the aircraft lifting surface and longitudinal thrust engine, to provide for commanded thrust-vectoring maneuvering of the aircraft during VTOL, fixed wing flight, and intermediate transitional states, including maintenance of a desired pose of the lifting surface independent of orientation of the rotor orientations when hovering the aircraft in windy conditions. A flight and navigation control system automates flight maneuvers and maintains desired aircraft pose and position relative to static or dynamic coordinates during station keeping, tracking, avoidance, or convergence maneuvers.