METHOD AND SYSTEM TO CONTROL EMERGENCY DESCENT OF AIRCRAFT
First Claim
1. A method for controlling an emergency descent of an aircraft, said method comprising the following steps consisting of automatically:
- detecting a situation necessitating an emergency descent;
calculating a usual emergency descent command;
calculating a limited emergency descent command;
selecting one of the usual emergency descent command or the limited emergency decent command depending on whether certain application conditions are met and if the limited emergency descent command is less than the usual emergency descent command and greater than an emergency descent command complying with regulation performance, selecting the limited emergency descent command; and
applying a selected one of the usual emergency descent command to the aircraft and the limited emergency descent command to automatically control an emergency descent of the aircraft;
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Accused Products
Abstract
A method and a system for controlling an emergency descent of an aircraft. The system (1) includes a unit (2) for detecting an emergency situation, a unit (11) for calculating a usual emergency descent command, a unit (12) for calculating a limited emergency descent command, a selection unit (14) configured for selecting the usual emergency descent command or, if application conditions are met and if the limited descent command is less than said usual emergency descent command and greater than a regulation emergency descent command, selecting the limited emergency descent command, and a unit (4) for application, to the aircraft, of the selected emergency descent command.
23 Citations
18 Claims
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1. A method for controlling an emergency descent of an aircraft, said method comprising the following steps consisting of automatically:
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detecting a situation necessitating an emergency descent; calculating a usual emergency descent command; calculating a limited emergency descent command; selecting one of the usual emergency descent command or the limited emergency decent command depending on whether certain application conditions are met and if the limited emergency descent command is less than the usual emergency descent command and greater than an emergency descent command complying with regulation performance, selecting the limited emergency descent command; and applying a selected one of the usual emergency descent command to the aircraft and the limited emergency descent command to automatically control an emergency descent of the aircraft; - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. The method as claimed in claim 8, wherein the application conditions are met if an automatic pilot system of the aircraft is active.
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12. A system for controlling an emergency descent of an aircraft, said system comprising:
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a unit configured to detect an emergency situation necessitating an emergency descent of the aircraft; a unit configured to calculate a usual emergency descent command; a unit configured to calculate a limited emergency descent command; a selection unit configured to select the usual emergency descent command or the limited emergency descent command depending on whether certain application conditions exist and if the limited emergency descent command is less than the usual emergency descent command and greater than a regulation emergency descent command, selecting the limited emergency descent command; and a unit configured to apply to operate the aircraft the selected one of the usual emergency descent command and the limited emergency descent command. - View Dependent Claims (13, 14)
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15. A method for controlling an emergency descent of an aircraft, comprising the following automatically performed steps:
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detecting a situation associated with the aircraft necessitating an emergency descent; determining a usual emergency descent command; applying the usual emergency descent command to the aircraft to control the aircraft during an emergency descent; calculating a limited emergency descent command; selecting the limited emergency descent command to be used instead of the emergency descent command based on a determination that at least one certain application condition is met and that the limited emergency descent command is less, in terms of vertical speed of the aircraft, than the usual emergency descent command and greater than an emergency descent command complying with regulation performance; and applying the limited emergency descent command instead of the usual emergency descent command in response to the selection of the emergency descent command. - View Dependent Claims (16, 17, 18)
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Specification