Patent ID: 8706326

Claim:
A device for aiding the piloting of an airplane during a phase of landing on an airport, said device being provided with an automatic braking system which is able to automatically brake the airplane during the ground rollout on a landing runway, said braking system comprising: a flight controls computer for computing a nominal deceleration that is calculated, when the nominal deceleration is applied to the airplane, to stop the airplane level with a selected exit on the landing runway; and a braking computer, for computing, on the basis of a deceleration received, commands for control of a braking system of the airplane, wherein: said device moreover comprises: a first component or procedure configured for providing data exhibiting a rate of occurrence of error or of alteration which is compatible with safety objectives required on an airplane during a landing; a second component forming part of the flight controls computer configured for computing, on the basis of said data, a minimum deceleration calculated to ensure that the airplane stops before an end of the landing runway, when this minimum deceleration is applied to said airplane; and a third component forming part of the flight controls computer configured for comparing said nominal deceleration with said minimum deceleration and for transmitting a higher of the nominal deceleration or the minimum deceleration to said braking computer.