ELECTRIC POWER SYSTEM ARCHITECTURE AND FAULT TOLERANT VTOL AIRCRAFT USING SAME

    公开(公告)号:US20200010187A1

    公开(公告)日:2020-01-09

    申请号:US16428794

    申请日:2019-05-31

    Abstract: A power system with a reliability enhancing battery architecture for electric motors adapted for use in an aerial vehicle. Individual batteries may be used to power a subset two or more motors in systems with six or more motors, for example. Each motor may be powered may be powered by two or more subsets of batteries, allowing accommodation for motor failure. With a failed motor in a vertical take-off or landing mode, power may be diverted to other motors to continue proper attitude control, and to provide sufficient thrust. With a failed motor a second motor offset from the failed motor may be powered down to facilitate attitude control.

    Electric power system architecture and fault tolerant VTOL aircraft using same

    公开(公告)号:US12195178B2

    公开(公告)日:2025-01-14

    申请号:US18481561

    申请日:2023-10-05

    Abstract: A power system with a reliability enhancing battery architecture for electric motors adapted for use in an aerial vehicle. Individual batteries may be used to power a subset two or more motors in systems with six or more motors, for example. Each motor may be powered by two or more subsets of batteries, allowing accommodation for motor failure. With a failed motor in a vertical take-off or landing mode, power may be diverted to other motors to continue proper attitude control, and to provide sufficient thrust. With a failed motor a second motor offset from the failed motor may be powered down to facilitate attitude control.

    System And Method For Airspeed Determination
    13.
    发明公开

    公开(公告)号:US20230360424A1

    公开(公告)日:2023-11-09

    申请号:US18114272

    申请日:2023-02-26

    CPC classification number: G06V40/103 G06V20/64 G06V40/23

    Abstract: A method for determining airspeed of an aircraft that includes determining a rotor model relating a power coefficient of a propeller of the aircraft to an axial inflow velocity through the propeller as a function of a set of rotor operating parameters; determining the set of rotor operating parameters by sampling an electronic control signal associated with an electric motor actuating the propeller; computing the axial inflow velocity through the propeller based on the set of rotor operating parameters using the rotor model; and determining the airspeed based on the axial inflow velocity.

    System and method for airspeed determination

    公开(公告)号:US11597532B2

    公开(公告)日:2023-03-07

    申请号:US17146737

    申请日:2021-01-12

    Abstract: A method for determining airspeed of an aircraft that includes determining a rotor model relating a power coefficient of a propeller of the aircraft to an axial inflow velocity through the propeller as a function of a set of rotor operating parameters; determining the set of rotor operating parameters by sampling an electronic control signal associated with an electric motor actuating the propeller; computing the axial inflow velocity through the propeller based on the set of rotor operating parameters using the rotor model; and determining the airspeed based on the axial inflow velocity.

    Aircraft control system
    15.
    发明授权

    公开(公告)号:US11323214B2

    公开(公告)日:2022-05-03

    申请号:US16573837

    申请日:2019-09-17

    Abstract: A fault-tolerant command and control system including a plurality of flight devices, a plurality of flight computers, a distribution network including a plurality of switches and cables connecting the plurality of flight devices to the plurality of flight computers, and a power source connected to the distribution network.

    SYSTEM AND METHOD FOR AIRCRAFT NOISE MITIGATION

    公开(公告)号:US20210078715A1

    公开(公告)日:2021-03-18

    申请号:US17065172

    申请日:2020-10-07

    Abstract: A system and method for reducing a psychoacoustic penalty of acoustic noise emitted by an aircraft, including a plurality of propulsion assemblies coupled to the aircraft, wherein each of the plurality of propulsion assemblies includes a motor, and a plurality of blades defined by a propeller, wherein the plurality of blades can define an asymmetric blade spacing; a control subsystem coupled to the aircraft and communicatively coupled to the motor of each of the plurality of propulsion assemblies, wherein the control subsystem is operable to rotate each of the plurality of propulsion assemblies at a different frequency to modulate the acoustic power distribution of the emitted acoustic signature.

    System and method for aircraft noise mitigation

    公开(公告)号:US12280885B2

    公开(公告)日:2025-04-22

    申请号:US17065172

    申请日:2020-10-07

    Abstract: A system and method for reducing a psychoacoustic penalty of acoustic noise emitted by an aircraft, including a plurality of propulsion assemblies coupled to the aircraft, wherein each of the plurality of propulsion assemblies includes a motor, and a plurality of blades defined by a propeller, wherein the plurality of blades can define an asymmetric blade spacing; a control subsystem coupled to the aircraft and communicatively coupled to the motor of each of the plurality of propulsion assemblies, wherein the control subsystem is operable to rotate each of the plurality of propulsion assemblies at a different frequency to modulate the acoustic power distribution of the emitted acoustic signature.

    System and method for airspeed determination

    公开(公告)号:US10919641B2

    公开(公告)日:2021-02-16

    申请号:US16893733

    申请日:2020-06-05

    Abstract: A method for determining airspeed of an aircraft that includes determining a rotor model relating a power coefficient of a propeller of the aircraft to an axial inflow velocity through the propeller as a function of a set of rotor operating parameters; determining the set of rotor operating parameters by sampling an electronic control signal associated with an electric motor actuating the propeller; computing the axial inflow velocity through the propeller based on the set of rotor operating parameters using the rotor model; and determining the airspeed based on the axial inflow velocity.

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