Automatic control system for directional control of an aircraft

Details Automatic control system for directional control of an aircraft Automatic control system for directional control of an aircraft

1981-09-18

1984-11-13

Krass, Errol A.

Boots, shoes, and leggings

364430, 244183, 318586, 318583, G06F 1500

Patent

active

044829612

ABSTRACT:
A control system for maintaining an aircraft within the lateral boundaries of a runway during landing rollout under conditions of combined crosswind and low runway friction is disclosed. An automatic mode of operation is provided wherein the system utilizes an input signal representative of the heading of the runway being utilized and signals provided by (or derivable from ) an inertial navigation system to exercise coordinated control of the aircraft rudder, steering and differential braking system. In a semiautomatic mode of operation, signals supplied by the inertial navigation system (or its equipment) are utilized in conjunction with a continuous command signal that is provided by the pilot to indicate the desired aircraft trajectory. An optional provision is included for limiting the aircraft ground velocity slip angle to a range wherein an increase in ground velocity slip angle results in increased lateral corrective force on the aircraft. An additional optional provision modifies operation of the brake-antiskid system employed by the aircraft so as to reduce braking pressure by an amount that substantially optimizes lateral corrective force on the aircraft.

REFERENCES:
patent: 3761691 (1973-09-01), Schultz et al.
patent: 3837603 (1974-09-01), Schultz et al.
patent: 4006870 (1977-02-01), Boone et al.
patent: 4094479 (1978-06-01), Kennedy, Jr.

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