公开(公告)号：US12291354B2

公开(公告)日：2025-05-06

申请号：US18159461

申请日：2023-01-25

Applicant: Textron Innovations Inc.

Inventor： Clifton Lee Harrell

IPC: B64F5/60 ,  B64D45/00

Abstract: In an embodiment, an aircraft includes an actuator and a flight control computer interfaced with the actuator. The flight control computer is configured to: increase an initiating force output by an initiating channel of the actuator; stop the increasing of the initiating force in response to observing restraining forces on restraining channels of the actuator; hold the initiating force at a quiescent initiating value while the restraining channels hold the restraining forces at quiescent restraining values; increase the initiating force to a target initiating value while the restraining channels increase the restraining forces to target restraining values; calculate a force fight test result by summing a difference between the target initiating value and the quiescent initiating value with differences between the target restraining values and the quiescent restraining values; and indicate the actuator failed verification in response to the force fight test result being greater than a first predetermined threshold.

公开(公告)号：US20240246698A1

公开(公告)日：2024-07-25

申请号：US18159461

申请日：2023-01-25

Applicant: Textron Innovations Inc.

Inventor： Clifton Lee Harrell

IPC: B64F5/60 ,  B64D45/00

CPC classification number: B64F5/60 ,  B64D45/00

Abstract: In an embodiment, an aircraft includes an actuator and a flight control computer interfaced with the actuator. The flight control computer is configured to: increase an initiating force output by an initiating channel of the actuator; stop the increasing of the initiating force in response to observing restraining forces on restraining channels of the actuator; hold the initiating force at a quiescent initiating value while the restraining channels hold the restraining forces at quiescent restraining values; increase the initiating force to a target initiating value while the restraining channels increase the restraining forces to target restraining values; calculate a force fight test result by summing a difference between the target initiating value and the quiescent initiating value with differences between the target restraining values and the quiescent restraining values; and indicate the actuator failed verification in response to the force fight test result being greater than a first predetermined threshold.

公开(公告)号：US20240017820A1

公开(公告)日：2024-01-18

申请号：US17813128

申请日：2022-07-18

Applicant: Textron Innovations Inc.

Inventor： Jillian Samantha Alfred ,  Lan Nam Hoang ,  Clifton Lee Harrell

IPC: B64C13/04

CPC classification number: B64C13/0421 ,  B64C13/0427

Abstract: In an embodiment, a rotorcraft includes a control element; a first detent sensor connected to the control element, the first detent sensor being operable to generate detent slip rate data indicating movement of the control element and detent state data indicating pilot control of the control element; a first trim motor connected to the control element and operable to generate trim rate data; and an FCC in signal communication with the first detent sensor and the first trim motor, the FCC including an error monitor operable to compare the detent slip rate data with the trim rate data and determine whether the first detent sensor is functional or defective, operable to provide a first flight management function when the first detent sensor is determined to be functional, and operable to provide a second flight management function when the first detent sensor is determined to be defective.