LANDING DISTANCE MONITOR

• US 20170249851A1
• Filed: 02/29/2016
• Published: 08/31/2017
• Est. Priority Date: 02/29/2016
• Status: Active Grant

• Current Assignee: Embraer S.A.
• Original Assignee: Embraer S.A.
• Inventors: MARQUES, Caio Cramer Almeida
• Granted Patent: US 10,453,349 B2
• Time in Patent Office: Days
• CPC Class Codes: G01C 23/00 Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
• CPC Class Codes: G08G 5/0021 located in the aircraft
• CPC Class Codes: G08G 5/025 Navigation or guidance aids radar or analogous systems specially adapted for landing purposes G01S13/913

Abstract

The non-limiting method and device presented herein minimizes the risks of a landing overrun and increases flight crew situational awareness. To accomplish these goals, the system actuates in the approach and landing phases returning automatic alerts to the flight crew when necessary.

Claims

1. A system for warning a flight crew of potential runway overruns during landing, comprising:

a computer processor implementing at least one neural network comprising plural inputs and at least one output, wherein the inputs comprise at least one or more of the following;

pressure altitude, air temperature, wind speed, weight, calibrated airspeed, autobrake setting, runway slope, and runway condition; and

using the neural network to continually calculate at least the remaining distance on the runway and to generate an alert when the remaining distance is insufficient.

2. The system of claim 1 wherein the neural network calculates the air and ground landing distances, during the approach.

3. The system of claim 1 wherein the air landing distance during landing phase is obtained by

4. The system of claim 1 wherein the ground landing distance during air landing phase is obtained by S_GND=S_GND,HREF where S_GND,HREF=S_GND is calculated by the neural network at SH position.

5. The system of claim 1 wherein the remaining ground distance during ground landing phase is obtained by

6. The system of claim 1 further including a further neural network for calculating remaining ground distance during ground landing phase.

7. The system of claim 1 wherein the processor calculates the position where the aircraft will touch the runway—

TD, as

TD=S_ACFT+S_APP+S_AIR−

S_RWY.

8. The system of claim 1 wherein the processor calculates the position where the aircraft will stop—

SP, as defined by;

SP=S_ACFT+S_APP+S_AIR+S_GND−

S_RWY.

9. The system of claim 1 further including a control that allows the flight crew to shorten LDA length for operator to increase safety margin or to account for threshold displacement and LDA reduction.