Methods and systems for translating an emergency system alert signal to an automated flight system maneuver

• US 9,870,000 B2
• Filed: 03/28/2011
• Issued: 01/16/2018
• Est. Priority Date: 03/28/2011
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Stange, Kent
• Primary Examiner(s): CASS, JEAN PAUL
• Application Number:
  US13/073,627
• Publication Number:
  US 20120253555A1
• Time in Patent Office: 2,486 Days
• Field of Search: 701 3
• CPC Class Codes: G05D 1/0055 with safety arrangements
• CPC Class Codes: G05D 1/106 Change initiated in response to external conditions, e.g. avoidance of elevated terrain or of no-fly zones
• CPC Class Codes: G05D 1/1064 specially adapted for avoiding collisions with other aircraft
• CPC Class Codes: G08G 5/0021 located in the aircraft
• CPC Class Codes: G08G 5/0056 in an emergency situation, e.g. hijacking

Abstract

Systems, methods and apparatus are provided for translating an alert signal into an auto flight system (AFS) maneuver. The system comprises a first module. The first module is configured to receive an alert signal and to construct one or more AFS mode commands associated with the alert signal. The system also comprises a second module. The second module is configured to read and to execute the one or more AFS mode commands that when executed manipulate two or more standard AFS modes that implement the AFS maneuver. The system further comprises a state machine, which couples the first module to the second module and is configured to coordinate the construction of the one or more AFS mode commands by the first module with an execution of the one or more AFS mode commands by the second module.

Claims

1. A system for translating one or more alert signals into an auto flight system (AFS) maneuver comprising:

an emergency system configured to supply one or more alert signals, the emergency system including a traffic collision avoidance system (TCAS) and an enhanced ground proximity warning system (EGPWS);

a plurality of aircraft flight control actuators;

an AFS in operable communication with, and configured to control, at least the aircraft flight control actuators; and

a processor in operable communication with the emergency system to receive the one or more alert signals therefrom, the processor also in operable communication with the AFS, the processor containing a first module, a second module and a state machine and configured to receive a time signal,

the first module configured to cause the processor to;

decode the one or more alert signals,

validate the one or more alert signals,

determine a maneuver definition that is associated with the one or more alert signals, and

construct one or more AFS mode commands from the maneuver definition that when executed in combination direct the AFS to perform the AFS maneuver;

the second module configured to cause the processor to;

execute the one or more AFS mode commands determined from the maneuver definition by selectively arming one or more standard AFS modes required to implement the AFS maneuver; and

the state machine coupling the first module to the second module, the state machine configured to cause the processor to coordinate a function of first module with that of the second module based on the time signal,

wherein the state machine comprises at least an Inhibit Active Maneuvers State, a Ready State, a Maneuver in Progress State, and a Maneuver Exit State.

2. The apparatus of claim 1, wherein the maneuver definition is determined based at least in part on the validation of each of the one or more alert signals.

3. The apparatus of claim 1, further comprising a memory device, wherein the memory device contains, recorded thereon, one or more supplemental maneuver definitions associated with the one or more alert signals.

4. The apparatus of claim 3, wherein the one or more AFS mode commands is determined by combining the maneuver definition and the one or more supplemental maneuver definitions.

5. The system of claim 1, wherein the first module is further configured to cause the processor to prioritize the one or more alert signals based at least in part on the validation of the one or more alert signals.

6. The system of claim 1, wherein the first module is further configured, upon receiving the alert signal, to cause the processor to determine if the alert signal includes an AFS maneuver definition based at least in part on the validation of each of the alert signal.

7. The system of claim 1, wherein the state machine in the Inhibit Active Maneuvers State waits until all previous alert signals have cleared.

8. The system of claim 1, wherein the state machine in the Ready State:

receives a prioritized alert signal from the first module;

activates the first module to process the prioritized alert; and

inhibits any lower priority AFS maneuvers.

9. The system of claim 1, wherein the state machine in the Maneuver in Progress State activates the second module to read the one or more AFS mode commands constructed by the first module.

10. The system of claim 1, wherein the state machine in the Maneuver Exit State:

activates the second module to conclude the AFS maneuver;

receives a prioritized alert signal from the first module;

activates the first module to process the prioritized alert signal; and

inhibits any lower priority active maneuvers based at least on the prioritized alert signal.