Boots – shoes – and leggings
Patent
1990-02-26
1991-10-08
Lall, Parshotam S.
Boots, shoes, and leggings
364440, 244180, 244182, G06F 1550
Patent
active
050560271
ABSTRACT:
Apparatus and an associated method are described for an aircraft for providing an auto-changeover procedure from a calibrated airspeed control parameter to a Mach number control parameter when the aircraft is ascending; and, from a Mach number control parameter to a calibrated airspeed parameter when the aircraft is descending. The auto-changeover procedure is responsive to application of preselected calibrated airspeed and Mach number parameters. The data processing unit of the aircraft provides a continually updated prediction of the target parameter that would result should the aircraft execute the auto-changeover under the currently existing conditions. When the predicted value and the preselected value are equal, the changeover procedure is invoked, reducing the transients resulting from overshoot of the target parameter value. Provision is made for the circumstance wherein the changeover is determined by an altitude rather than a target parameter. Approximation equations for reducing the computational requirements are discussed.
REFERENCES:
patent: 3617721 (1971-11-01), Foster
patent: 3743221 (1970-04-01), Lykken et al.
patent: 4764872 (1986-07-01), Miller
patent: 4792906 (1986-08-01), King et al.
patent: 4849900 (1986-05-01), Blight et al.
Honeywell Inc.
Jepsen D. E.
Lall Parshotam S.
Lenkszus D. J.
Medved A.
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