Method and apparatus for reducing false wind shear alerts

Communications: electrical – Aircraft alarm or indicating systems – Flight alarm

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

244181, 340969, 364433, G08B 2300

Patent

active

054932939

ABSTRACT:
A wind shear detection and alert system, compensated for the calibrated airspeed of the aircraft to minimize nuisance wind shear alerts. The wind shear detection and alert system (10) determines a reference airspeed as a function of flap position, with respect to a minimum maneuver airspeed signal (60) provided by a stall warning computer on the aircraft. The reference airspeed is subtracted from a calibrated airspeed signal (76) that has been filtered to remove minor variations in the signal using a Laplace filter (68). The differential airspeed is further filtered by another Laplace filter (78), producing a filtered differential airspeed signal (70), which the system uses to determine a delta threshold (48) to be applied in compensation for the aircraft airspeed to a wind shear alert reference signal. As the filtered differential airspeed increases, the delta threshold signal increases the absolute level of the wind shear alert threshold, reducing the likelihood of unnecessary wind shear alerts.

REFERENCES:
patent: 3327972 (1967-06-01), Greene
patent: 3569926 (1971-03-01), Korn et al.
patent: 3618002 (1971-11-01), Stinson
patent: 3947810 (1976-03-01), Bateman et al.
patent: 3988713 (1976-10-01), Bateman
patent: 4189777 (1980-02-01), Kuntman
patent: 4229725 (1980-10-01), Reilly
patent: 4347572 (1982-08-01), Berwick, Jr. et al.
patent: 4422147 (1983-12-01), Hanke
patent: 4593285 (1986-06-01), Miller et al.
patent: 4725811 (1988-02-01), Muller et al.
patent: 4728951 (1988-03-01), Johnson et al.
patent: 4797674 (1989-01-01), Zweifel et al.
patent: 4855738 (1989-08-01), Greene
Bonafe, J. L.; "Airbus Windshear Warning and Guidance System;" Williamsburg, Virginia; Oct. 20, 1988.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for reducing false wind shear alerts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for reducing false wind shear alerts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing false wind shear alerts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1358845

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.