Wind forecast error compensation for 4-D guidance in a aircraft

Details Wind forecast error compensation for 4-D guidance in a aircraft Wind forecast error compensation for 4-D guidance in a aircraft

1989-10-16

1991-09-24

Lall, Parshotham S.

Boots, shoes, and leggings

364440, G06F 1550, G05D 100

Patent

active

050519107

ABSTRACT:
In a flight management system (FMS) of an aircraft, there is included a speed generator that outputs a speed command for the aircraft in accordance with a preselected mode. The FMS further includes an apparatus performing a method for adjusting the speed to achieve a desired arrival time. The apparatus comprises a unit for generating a speed adjustment coefficient (KSA), a unit for calculating wind forecast error, and a unit for adjusting the command speed outputted from the speed generator. The adjusting unit utilizes the KSA, actual wind speed at the current aircraft position, and wind forecast error at the aircraft position. The speed adjustment compensates for the error in the wind forecast, in order to achieve the desired arrival-time.

REFERENCES:
patent: 4467429 (1984-08-01), Kendig
patent: 4642775 (1987-02-01), Cline et al.
patent: 4760530 (1988-07-01), Liden
patent: 4774670 (1988-09-01), Palmieri
patent: 4812990 (1989-03-01), Adams et al.

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