Method for estimating the touchdown point of the wheels of...

Details Method for estimating the touchdown point of the wheels of... Method for estimating the touchdown point of the wheels of...

2007-09-15

2010-12-14

Camby, Richard M. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Aeronautical vehicle

C701S014000

Reexamination Certificate

active

07853370

ABSTRACT:
The present invention relates to a method for estimating the touchdown point of the wheels of an aircraft on a landing runway and the distance to be traveled by the aircraft on the runway from the touchdown point to reach a controlled speed below which it can perform any maneuver on the ground. The method comprises an in-flight step of estimating a height and a speed of passage above the threshold of the runway. It also comprises an in-flight step of estimating the touchdown point of the wheels of the aircraft on the landing runway and the distance to be traveled to reach the controlled speed, on the basis of the estimation of the height and the speed of passage above the threshold of the runway. It also comprises a step while going on the runway of estimating the distance to be traveled from the real touchdown point to reach the controlled speed, taking account of the braking forces provided by the brakes, the airbrakes and the thrust reversers.

REFERENCES:
patent: 4316252 (1982-02-01), Cooper
patent: 6317690 (2001-11-01), Gia
patent: 7132960 (2006-11-01), Glover
patent: 2004/0075586 (2004-04-01), Glover
patent: 2004/0167685 (2004-08-01), Ryan et al.
patent: 0157827 (2001-08-01), None

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