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Operational Aspects of the Integrated Vertical Flight Path and Speed Control System
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English
Abstract
Operational aspects of a functionally integrated automatic flight path and speed control autopilot are discussed. A system is described using point mass energy principles to develop coordinated elevator and thrust commands and provide decoupled flight path and speed control for all the traditional autopilot and autothrottle functions. Various aspects of this integrated multi-input/multi-output system design on performance, operational capability, system architecture and redundancy requirements, hardware and software requirements are described. Also, possible mode control panel functional design improvements are discussed. Feedback signal normalization into energy related quantities is shown to be the key to achieving natural control decoupling with desired energy management features and consolidation of all computations for fully automatic control, computer augmented manual control and flight director thrust/elevator control guidance displays. The design approach offers overall design coherency and simplicity.
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Authors
Citation
Lambregts, A., "Operational Aspects of the Integrated Vertical Flight Path and Speed Control System," SAE Technical Paper 831420, 1983, https://doi.org/10.4271/831420.Also In
References
- Spradlin R.E. “FMS: Where Are We Today, And What Have We Learned?” AIAA paper 83-2236-CP
- Lambregts A.A. “Integrated System Design for Flight and Propulsion Control Using Total Energy Principles,” AIAA paper 83-2561 October 1983
- Souté H.A. “The Throttles Control Speed, Right? Wrong!” AIAA Journal of Aeronautics and Astronautics December 1969
- Lambregts A.A. “Vertical flight Path and Speed Control Autopilot Design Using Total Energy Principles,” AIAA paper 83-2239CP August 1983
- Lambregts A.A. Cannon D.G. “Development of a Control Wheel Steering Mode and Suitable Displays That Reduce Pilot Workload and Improve Efficiency and Safety of Operation in the Terminal Area and in Windshear,” AIAA paper 79-1887 August 1979
- Jones J.G. “Flight in Turbulence,” AGARD CP140 1973
- Johnston, D.E. et al. “Manual and Automatic Flight Control During Severe Turbulence Penetration,” NASA CR 2677 April 1976