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X-wing fly-by-wire vehicle management systemA complete, computer based, vehicle management system (VMS) for X-Wing aircraft using digital fly-by-wire technology controlling many subsystems and providing functions beyond the classical aircraft flight control system. The vehicle management system receives input signals from a multiplicity of sensors and provides commands to a large number of actuators controlling many subsystems. The VMS includes--segregating flight critical and mission critical factors and providing a greater level of back-up or redundancy for the former; centralizing the computation of functions utilized by several subsystems (e.g. air data, rotor speed, etc.); integrating the control of the flight control functions, the compressor control, the rotor conversion control, vibration alleviation by higher harmonic control, engine power anticipation and self-test, all in the same flight control computer (FCC) hardware units. The VMS uses equivalent redundancy techniques to attain quadruple equivalency levels; includes alternate modes of operation and recovery means to back-up any functions which fail; and uses back-up control software for software redundancy.
Document ID
20080008733
Acquisition Source
Ames Research Center
Document Type
Other - Patent
Authors
Fischer, Jr., William C.
Date Acquired
August 24, 2013
Publication Date
October 23, 1990
Subject Category
Aircraft Stability And Control
Report/Patent Number
Patent Number: US-Patent-4,965,879
Patent Application Number: US-Patent-Appl-SN-257474
Funding Number(s)
CONTRACT_GRANT: NAS2-11771
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-4,965,879
Patent Application
US-Patent-Appl-SN-257474
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