Adaptive assistance for flight simulation
AssigneeFRASCA International Inc.
InventorGlen Dimock
Life of this patent
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Abstract
A simulator assistance method and system adaptively mitigates Pilot Induced Oscillations (PIOs) with respect to axes of rotation about the vehicle's center of mass. The method detects PIOs in a body rate signal by band pass filtering the body rate signal, and provides an adaptive response based on the amplitude of the body rate signal within the frequency band.
Claims11
A computer program product for use in an aircraft flight simulation training device, the computer program product comprising a computer readable medium having computer readable program code stored thereon, the computer readable program code including program code for
- monitoring a simulated aircraft body rate signal with respect to at least one axis of rotation,
- frequency decompositing the simulated aircraft body rate signal about at least one axis of rotation by band-pass filtering the body rate signal between a low-pass value and a high pass value to provide a filtered body rate signal in a preselected frequency band, calculating a gain coefficient as a function of the amplitude of the filtered body rate signal in which the gain coefficient is adaptive such that it decreases as the pilot progresses in a flight training maneuver, and
- applying an artificial aircraft body rate damping coefficient based on the calculated gain coefficient to reduce the filtered body rate signal.
A flight training method to reduce pilot induced oscillations during operation of a flight simulator for a rotary wing aircraft, comprising
- monitoring a simulated aircraft body rate signal with respect to at least one axis of rotation,
- frequency decompositing the simulated aircraft body rate signal about the at least one axis of rotation,
- band-pass filtering the body rate signal between a low-pass value and a high pass value to provide a filtered body rate signal in a preselected frequency band,
- calculating a gain coefficient as a function of the amplitude of the filtered body rate signal,
- outputting a human discernable indication of the gain coefficient to a user, and
- applying an artificial aircraft body rate damping coefficient in proportion to the calculated gain coefficient to reduce the filtered body rate signal.
Dependencies are inferred from the claim text.