Ejection seat sequencer time critical delay distribution methods and system
AssigneeRockwell Collins, Inc.
InventorAdam D. Mohling
Life of this patent
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Abstract
An ejection seat includes an ejection seat sequencing system. The sequencing system enables time delays to various components of the system, such the drogue parachute, the main parachute, and harness release cartridge. A sequence controller receives data for a parameter, such as airspeed, from at least two sensors. The sequence controller selects a sequence timing delay mode to implement the time delays for the components of the sequencing system. The sequence controller also accesses a lookup table in a database accessible by the sequence controller. The sequence controller uses a delay parameter of the lookup table to modify a time delay within the sequence timing delay mode, as configured by a user.
Claims20
An ejection seat sequencing system for an ejection seat of an aircraft, the system comprising;
- a sequence controller to issue time delay commands to at least one component;
- and
- a database coupled to the sequence controller, wherein the database includes a lookup table,
- wherein the sequence controller includes a processor coupled to a memory, wherein the memory includes instructions that, when executed on the processor, configures the sequence controller to perform the operations of
- initiating an ejection sequence for the ejection seat;
- determining at least two values for a parameter using at least two sensors;
- determining a plurality of sequence timing delay modes based on the at least two values and a resolution attribute at the sequence controller, wherein each sequence timing delay mode includes a time delay for the at least one component of the ejection seat sequencing system;
- selecting a sequence timing delay mode of the plurality of sequence timing delay modes at the sequence controller based on a weighting attribute and a focal attribute associated with each timing delay mode;
- accessing the lookup table accessible by the sequence controller;
- retrieving a value for a delay parameter in the lookup table;
- and
- implementing the time delay for the selected sequence time delay mode based on the delay parameter.
A method for performing an ejection seat sequence, the method comprising:
- initiating an ejection sequence for an ejection seat of an aircraft, wherein the ejection seat includes an ejection seat sequencing system;
- determining at least two values for a parameter using at least two sensors;
- determining a plurality of sequence timing delay modes based on the at least two values and a resolution attribute at a sequence controller, wherein each sequence timing delay mode includes a time delay for a component of the ejection seat sequencing system for the ejection seat;
- selecting a sequence timing delay mode of the plurality of sequence timing delay modes at the sequence controller;
- accessing a lookup table accessible by the sequence controller;
- retrieving a value for a delay parameter in the lookup table based on a weighting attribute and a focal attribute associated with each timing delay mode;
- and
- implementing the time delay for the selected sequence time delay mode based on the delay parameter.
A non-transitory computer-readable medium having stored thereon processor-executable instructions for performing operations comprising:
- initiating an ejection sequence for an ejection seat of an aircraft, wherein the ejection seat includes an ejection seat sequencing system;
- determining at least three values for a parameter using at least two sensors;
- determining a plurality of sequence timing delay modes based on the at least two values and a resolution attribute at a sequence controller, wherein each sequence timing delay mode includes a time delay for a component of the ejection seat sequencing system for the ejection seat;
- selecting a sequence timing delay mode of the plurality of sequence timing delay modes at the sequence controller based on a weighting attribute and a focal attribute associated with each timing delay mode;
- accessing a lookup table accessible by the sequence controller;
- retrieving a value for a delay parameter in the lookup table;
- and
- implementing the time delay for the selected sequence time delay mode based on the delay parameter.
Dependencies are inferred from the claim text.