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公开(公告)号：US20220388672A1
公开(公告)日：2022-12-08
申请号：US17338236
申请日：2021-06-03
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell , Kristen Stuart , Steven G. Hagerott
IPC: B64D31/00 , B64D27/24 , B64C27/68 , B64C39/02 , B64C27/635
Abstract: A system can include a flight controller for an aircraft that includes an electric motor that drives blades with a variable pitch, where the flight controller receives a command to change a flight characteristic of the aircraft and creates a torque command and a revolutions per minute (RPM) command. The system can also include a propulsion assembly, where the propulsion assembly creates a current command based at least in part on the torque command and the RPM command, creates a blade pitch command based at least in part on the torque command and the RPM command, communicates the current command to the electric motor to change a mechanical output of the electric motor, and communicates the blade pitch command to blade actuators to control the pitch of the blades. The current command and the blade pitch command cause the blades of the aircraft to rotate at a predetermined RPM.
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公开(公告)号：US20220204152A1
公开(公告)日：2022-06-30
申请号：US17135232
申请日：2020-12-28
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell
Abstract: One embodiment is an aircraft including a main body, a plurality of propulsion assemblies, and a plurality of hinges, wherein each of the plurality of propulsion assemblies is rotatably coupled to the main body using a hinge from the plurality of hinges. In an example, the aircraft includes four motor support arms and each motor support arm rotatably couples a specific propulsion assembly to a specific corresponding hinge on the main body of the aircraft and increases a span of the aircraft when the aircraft is in the flight configuration and reduces the footprint of the aircraft when the aircraft is in a storage configuration.
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公开(公告)号：US20220004205A1
公开(公告)日：2022-01-06
申请号：US16918596
申请日：2020-07-01
Applicant: Bell Textron Inc.
Inventor： Michael McNair , Juan Li , Kip Gregory Campbell
Abstract: A method of autonomous flight path planning for a group of cooperating aircraft operating in formation includes: receiving information related to obstructions that interfere with an aircraft of the group continuing on a flight path; calculating a velocity obstacle for each obstruction; calculating a plurality of candidate velocities outside of the velocity obstacles; selecting a first velocity from the candidate velocities and operating a leader of the group at the first velocity; calculating, based upon keeping a follower aircraft in formation, a second velocity for the follower; determining whether the second velocity is inside one of the velocity obstacles; operating the follower at the second velocity when the second velocity is outside the velocity obstacles; and calculating a revised velocity that is outside of the velocity obstacles and operating the follower at the revised velocity when the second velocity is inside one of the velocity obstacles.
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公开(公告)号：US12043398B2
公开(公告)日：2024-07-23
申请号：US17338236
申请日：2021-06-03
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell , Kristen Stuart , Steven G. Hagerott
CPC classification number: B64D31/00 , B64C27/635 , B64C27/68 , B64C39/024 , B64D27/24 , B64U30/20 , B64U50/19 , B64U2201/00
Abstract: A system can include a flight controller for an aircraft that includes an electric motor that drives blades with a variable pitch, where the flight controller receives a command to change a flight characteristic of the aircraft and creates a torque command and a revolutions per minute (RPM) command. The system can also include a propulsion assembly, where the propulsion assembly creates a current command based at least in part on the torque command and the RPM command, creates a blade pitch command based at least in part on the torque command and the RPM command, communicates the current command to the electric motor to change a mechanical output of the electric motor, and communicates the blade pitch command to blade actuators to control the pitch of the blades. The current command and the blade pitch command cause the blades of the aircraft to rotate at a predetermined RPM.
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公开(公告)号：US20220324558A1
公开(公告)日：2022-10-13
申请号：US17571936
申请日：2022-01-10
Applicant: Bell Textron Inc.
Inventor： Brent C. Ross , Kirk L. Groninga , Steven R. Ivans , Steve R. Schafer , Brad Joseph Passe , Nicholas Ralph Carlson , Kip Gregory Campbell , Bradley Paul Regnier , Steven G. Hagerott
IPC: B64C29/00
Abstract: One embodiment is an aircraft including a fuselage; a wing connected to the fuselage; first and second booms connected to the wing on opposite sides of the fuselage; first and second forward propulsion systems attached to forward ends of the first and second booms; first and second aft propulsion systems fixedly attached proximate aft ends of the first and second booms; and first and second wing-mounted propulsion systems connected to outboard ends of wings; wherein the first and second wing-mounted propulsion systems are tiltable between a first position when the aircraft is in a hover mode and a second position when the aircraft is in a cruise mode.
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Patent Agency Ranking
公开(公告)号：US11454991B2
公开(公告)日：2022-09-27
申请号：US16918596
申请日：2020-07-01
Applicant: Bell Textron Inc.
Inventor： Michael McNair , Juan Li , Kip Gregory Campbell
Abstract: A method of autonomous flight path planning for a group of cooperating aircraft operating in formation includes: receiving information related to obstructions that interfere with an aircraft of the group continuing on a flight path; calculating a velocity obstacle for each obstruction; calculating a plurality of candidate velocities outside of the velocity obstacles; selecting a first velocity from the candidate velocities and operating a leader of the group at the first velocity; calculating, based upon keeping a follower aircraft in formation, a second velocity for the follower; determining whether the second velocity is inside one of the velocity obstacles; operating the follower at the second velocity when the second velocity is outside the velocity obstacles; and calculating a revised velocity that is outside of the velocity obstacles and operating the follower at the revised velocity when the second velocity is inside one of the velocity obstacles.
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公开(公告)号：US11887493B2
公开(公告)日：2024-01-30
申请号：US16545938
申请日：2019-08-20
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell , Juan Li
CPC classification number: G08G5/04 , B64C39/024 , B64D31/00 , G05D1/1064 , G08G5/0004 , G08G5/0069 , B64U2201/102
Abstract: According to one implementation of the present disclosure, a method for formation flight is disclosed. The method includes: during flight, arranging for a first aircraft to fly into a proximity range of a second aircraft; and determining first aircraft positioning based on power consumption data of the first aircraft, where the first aircraft positioning corresponds to power-reducing formation flight of the first aircraft.
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公开(公告)号：US11845544B2
公开(公告)日：2023-12-19
申请号：US17135232
申请日：2020-12-28
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell
Abstract: One embodiment is an aircraft including a main body, a plurality of propulsion assemblies, and a plurality of hinges, wherein each of the plurality of propulsion assemblies is rotatably coupled to the main body using a hinge from the plurality of hinges. In an example, the aircraft includes four motor support arms and each motor support arm rotatably couples a specific propulsion assembly to a specific corresponding hinge on the main body of the aircraft and increases a span of the aircraft when the aircraft is in the flight configuration and reduces the footprint of the aircraft when the aircraft is in a storage configuration.
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公开(公告)号：US11524766B2
公开(公告)日：2022-12-13
申请号：US16889608
申请日：2020-06-01
Applicant: Bell Textron Inc.
Inventor： Kip Gregory Campbell
Abstract: An unmanned rotorcraft includes an airframe, rotor blades that are coupled to the airframe for rotation therewith, a propulsion unit having a propeller, and an actuator that is coupled to the airframe and adapted to temporarily reorient the propulsion unit such that an axis of the propeller moves out of alignment with an axis of the rotor blades. Rotation of the propeller causes counter-rotation of the airframe and rotor blades. The rotor blades and blades of the propeller are adapted to deploy from collapsed positions when flight of the rotorcraft is initiated. A method of operation by the rotorcraft includes, when it is determined that a current heading does not correspond to a determined flight path, causing the actuator to temporarily reorient the propulsion unit in accordance with an angular orientation of the actuator relative to the current heading.
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公开(公告)号：US20210197953A1
公开(公告)日：2021-07-01
申请号：US16732052
申请日：2019-12-31
Applicant: Bell Textron Inc.
Inventor： Karl Schroeder , William Anthony Amante , Kip Gregory Campbell
Abstract: A ducted-rotor aircraft may include a fuselage and first and second ducts that are coupled to the fuselage at respective first and second locations. The first location may be on a first side of a fuselage of the aircraft and spaced from a nominal yaw axis of the aircraft. The second location may be on an opposed second side of the fuselage and spaced from the nominal yaw axis. Each duct may include a rotor that is disposed in an opening that extends through the duct. Each rotor may include a plurality of blades. Each duct may further include a control vane that is mounted aft of the plurality of blades and that is pivotable about a vane axis that is oriented toward the nominal yaw axis.
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