Control system configured to control ejection of an ejection seat

A control system configured to control ejection of an ejection seat, the control system comprising:

• a sensor configured to measure ejection environment parameters upon ejection from an aircraft, the parameters including an equivalent airspeed and equivalent altitude of an ejection system at time of ejection from the aircraft;
• a controller in signal communication with the sensor to receive the ejection environment parameters and to store an ejection sequence operable according to a plurality of different ejection sequence modes, the controller configured to determine a target ejection sequence mode among the plurality of different ejection sequence modes based on the ejection environment parameters and to execute the ejection sequence according to the target ejection sequence mode to eject the ejection seat and safely recover an occupant,
• wherein the ejection sequence includes a plurality of different ejection events executed according to individual timing sequences, and wherein at least one of the timing sequences includes a variable delay tolerance that is dynamically calculated by the controller based on the equivalent airspeed output from the sensor,
• wherein the plurality of different ejection sequence modes include a first ejection sequence mode, a second ejection sequence mode, and a third ejection sequence mode, and
• wherein the second ejection sequence mode includes a first plurality of sub-modes, and the second ejection sequence mode includes a second plurality of sub-modes different from the first plurality of sub-modes.

A method of controlling ejection of an ejection seat, the method comprising:

• outputting measured ejection environment parameters from a sensor, the parameters including an equivalent airspeed and equivalent altitude of an ejection system at time of ejection from an aircraft;
• storing, in a controller, an ejection sequence operable according to a plurality of different ejection sequence modes, the ejection sequence including a plurality of different ejection events executed according to individual timing sequences;
• dynamically calculating, by the controller a variable delay tolerance based on the equivalent airspeed output from the sensor;
• applying the variable delay tolerance to a timing sequence corresponding to at least one of the ejection events;
• determining, by the controller, a target ejection sequence mode among the plurality of different ejection sequence modes based on the ejection environment parameters;
• executing, by the controller, the ejection sequence according to the target ejection sequence mode to eject the ejection seat and safely recover an occupant,
• wherein the plurality of different ejection sequence modes include a first ejection sequence mode, a second ejection sequence mode, and a third ejection sequence mode, wherein the second ejection sequence mode includes a first plurality of sub-modes, and wherein the second ejection sequence mode includes a second plurality of sub-modes different from the first plurality of sub-modes.