The Boeing Company

David C Mossman

John D Butkiewicz

David George Miller

Russell J Enns

Paul Lee Redkoles

Channing S Morse

Jonathan B Dahman

Pasquale A Randazzo

Methods and apparatus for monitoring and detecting failures in the actuation of a control system, such as a flight control system for an aircraft, include defining a nominal model of the control system in terms of the state variables of the control system, defining a model of an asymmetric 'actuation monitoring envelope' that dynamically bounds a range that measured state variables of the system are allowed to take during operation of the system as a function of the nominal system state model, monitoring a signal corresponding to a state variable of the system during operation thereof, and detecting a failure in the actuation of the control system when the monitored signal exceeds the bounds of the monitoring envelope.

Control system actuation fault monitoring

Systems and methods are provided for determining a final heading of a turning vehicle, such as a rotorcraft. The system may include an algorithm that calculates an advance prediction of a final heading that will be achieved after control input is terminated.

Heading reference command and control algorithm systems and methods for aircraft turn-to-target maneuvers

Systems and methods are provided for determining a final heading of a turning vehicle, such as a rotorcraft. The system may include an algorithm that calculates an advance prediction of a final heading that will be achieved after control input is terminated. The system may also include a device, such as a display, for conveying predicted final heading information to an aircraft controller, such as a pilot.

Heading reference command and control algorithm and cueing systems and methods for aircraft turn-to-target maneuvers

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Gilbert, AZ, United States of America

David C Mossman