HIGH-INTEGRITY ACTUATOR CONTROLLER AND CONTROL SYSTEMS

    公开(公告)号:US20230291336A1

    公开(公告)日:2023-09-14

    申请号:US18152803

    申请日:2023-01-11

    CPC classification number: H02P6/24 H03K7/08 H02P2101/30

    Abstract: A high-integrity electromechanical actuator control system includes a system function controller, a plurality of actuator controllers, and at least one electromechanical actuator. Each actuator controller includes a first controller, a second controller, and a duty cycle computation circuit. The first controller receives digital actuator control commands supplied from two of the function control channels and supplies first digital duty cycle commands. The second controller receives digital actuator control commands supplied from two function control channels and supplies second digital duty cycle commands. The duty cycle computation circuit receives the first digital duty cycle commands and the second digital duty cycle commands, computes an average of the first and second duty cycle commands, and generates pulse width modulated (PWM) commutation control signals based on the computed average.

    HIGH-INTEGRITY ACTUATOR CONTROLLER AND CONTROL SYSTEMS

    公开(公告)号:US20240305224A1

    公开(公告)日:2024-09-12

    申请号:US18527667

    申请日:2023-12-04

    CPC classification number: H02P6/16 H02P6/28 H02P9/02 H02P2209/09

    Abstract: A high-integrity electromechanical actuator control system includes a system function controller, a plurality of actuator controllers, and at least one electromechanical actuator. Each actuator controller includes a primary channel having a first controller, a second controller, and a duty cycle computation circuit, and includes a backup channel having a backup controller. The first controller receives digital actuator control commands from two functional control channels and supplies first digital duty cycle commands. The second controller receives digital actuator control commands from two functional control channels and supplies second digital duty cycle commands. The duty cycle computation circuit computes an average of the first and second duty cycle commands and generates pulse width modulated (PWM) commutation control signals based on the computed average. The backup controller receives digital actuator control commands from two different functional control channels and generates and supplies backup PWM commutation control signals.

    Propulsor brake lock
    3.
    发明授权

    公开(公告)号:US12258140B2

    公开(公告)日:2025-03-25

    申请号:US18310679

    申请日:2023-05-02

    Abstract: A propulsor brake lock system includes an aircraft propulsor, a reduction gear assembly, a brake shaft, and a brake assembly. The aircraft propulsor includes a propeller having a propeller input shaft coupled thereto. The reduction gear assembly includes at least an input gear and an output gear. The input gear and output gear are both rotatable with the propeller input shaft. The brake shaft is coupled to, and is rotatable with, the output gear. The brake assembly is coupled to the brake shaft and is moveable between a disengaged position, in which the brake shaft may rotate whenever the output gear rotates, and an engaged position, in which the brake shaft is prevented from rotating, thereby preventing rotation of the output gear, the input gear, and the propeller input shaft.

    High-integrity actuator controller and control systems

    公开(公告)号:US12244258B2

    公开(公告)日:2025-03-04

    申请号:US18152803

    申请日:2023-01-11

    Abstract: A high-integrity electromechanical actuator control system includes a system function controller, a plurality of actuator controllers, and at least one electromechanical actuator. Each actuator controller includes a first controller, a second controller, and a duty cycle computation circuit. The first controller receives digital actuator control commands supplied from two of the function control channels and supplies first digital duty cycle commands. The second controller receives digital actuator control commands supplied from two function control channels and supplies second digital duty cycle commands. The duty cycle computation circuit receives the first digital duty cycle commands and the second digital duty cycle commands, computes an average of the first and second duty cycle commands, and generates pulse width modulated (PWM) commutation control signals based on the computed average.

    CONTROL SURFACE ACTUATOR ASSEMBLY WITH GUST LOCK

    公开(公告)号:US20240124130A1

    公开(公告)日:2024-04-18

    申请号:US18298550

    申请日:2023-04-11

    CPC classification number: B64C13/38

    Abstract: An actuator assembly includes an actuator drive source and a gust lock. The actuator drive source is operable to supply an actuator drive torque to drive a component. The gust lock is movable between a locked position, in which rotation of the drive source is prevented, and an unlocked position, in which rotation of the drive source is not prevented. The gust lock includes a lock shaft, a lock rotor, a lock motor, and a linear actuator. The lock shaft is rotatable with the drive source when the gust lock is in the unlocked position. The lock rotor is rotatable with the lock shaft. The lock motor is configured to supply a lock drive torque. The linear actuator is coupled to receive the lock drive torque and is configured, upon receipt of the lock drive torque, to move between an engaged position and a disengaged position.

    SELF-ACTIVATED NO-BACK DEVICE
    6.
    发明申请

    公开(公告)号:US20230115546A1

    公开(公告)日:2023-04-13

    申请号:US17497396

    申请日:2021-10-08

    Abstract: A self-activated no-back device includes a housing, an input shaft, an output shaft, a reactor hub, first grooves, a brake hub, second grooves, a plurality of balls, a reactor plate, a brake pack, a reactor spring, and a load spring. The first grooves are formed on an interior side of the reactor hub interior side, and the second grooves are formed in an interior side of the brake hub. Each second groove is aligned with a different first groove to define a plurality of groove pairs. Each ball is positioned in a different one of the groove pairs. One side of the reactor plate contacts the reactor hub. The brake pack is selectively contacted by the brake hub. The reactor spring supplies a spring force to the reactor plate, and the load spring supplies a spring force to the brake pack.

    SYSTEM FOR DAMPING UNWANTED MOTOR MOVEMENT

    公开(公告)号:US20250070615A1

    公开(公告)日:2025-02-27

    申请号:US18453002

    申请日:2023-08-21

    Abstract: An electric motor system, which may be included in an aircraft, includes a multi-phase motor, a multi-phase inverter circuit, and a plurality of motor brake switches. The multi-phase inverter circuit is coupled to each phase of the multi-phase stator and is adapted to be coupled to a high-side voltage node and a circuit common node. Each motor brake switch is associated with, and is connected in series between, the circuit common node and a different one of the phases. Each motor brake switch is configured to be in an open state when energized and in a closed state when deenergized. When the motor brake switches are in the open state, the motor brake switches do not connect the associated phases to the circuit common node, and when the motor brake switches are in the closed state, the motor brake switches connect the associated phases to the circuit common node.

    Self-activated no-back device
    9.
    发明授权

    公开(公告)号:US11906006B2

    公开(公告)日:2024-02-20

    申请号:US17497396

    申请日:2021-10-08

    CPC classification number: F16D59/02 F16D55/04 F16D55/38 F16D65/028 F16D2125/38

    Abstract: A self-activated no-back device includes a housing, an input shaft, an output shaft, a reactor hub, first grooves, a brake hub, second grooves, a plurality of balls, a reactor plate, a brake pack, a reactor spring, and a load spring. The first grooves are formed on an interior side of the reactor hub interior side, and the second grooves are formed in an interior side of the brake hub. Each second groove is aligned with a different first groove to define a plurality of groove pairs. Each ball is positioned in a different one of the groove pairs. One side of the reactor plate contacts the reactor hub. The brake pack is selectively contacted by the brake hub. The reactor spring supplies a spring force to the reactor plate, and the load spring supplies a spring force to the brake pack.

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