Aircraft Ejection Seat Weight Sensing for Automatic Setting Adjustment
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Solution Overview
Problem
Current aircraft ejection systems require manual adjustment of settings during pre-flight checks, which is time-consuming and inefficient.
Innovation Solution
An automatic adjustment system for aircraft ejection systems that uses sensors and actuators to detect the weight of the pilot and adjust settings such as seat height and ejection timing accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of ejection seat settings is performed during pre-flight checks, then each setting can be adjusted individually, but the process is time-consuming and inefficient
Solution Approach 1:
The ejection seat system automatically detects pilot weight using sensors and autonomously adjusts multiple settings (seat height, lumbar support, headrest position, parachute deployment timing) without requiring manual intervention. The controller processes sensor data and actuates components to optimize settings based on detected weight, enabling the system to serve itself rather than requiring pilot manual adjustment
Solution Approach 2:
The patent replaces manual mechanical adjustment operations with an automated electromechanical system. Sensors detect weight, a controller processes the data, and actuators automatically adjust seat components. This substitution of manual mechanical operations with automated sensing and actuation systems eliminates the time-consuming manual adjustment process while maintaining precise setting control
2Manufacturing precision
If multiple ejection seat settings are adjusted manually during pre-flight checks, then each setting can be optimized, but the adjustments are made separately and increase overall preparation time
Solution Approach 1:
The system merges multiple separate adjustment operations into a single integrated automated process. The controller simultaneously coordinates adjustments of seat height, lumbar support, headrest position, and parachute deployment timing based on pilot weight detection. This consolidation of previously separate manual adjustments into one unified automated operation maintains precise setting optimization while dramatically improving pre-flight check efficiency
Solution Approach 2:
The automated control system performs multiple adjustment functions through a single integrated controller. One controller detects weight, processes data, and actuates multiple seat components (height adjustment, lumbar support, headrest position) and coordinates parachute deployment timing. This multi-functional capability allows precise optimization of all settings through a single automated system rather than requiring separate manual adjustments for each parameter
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables rapid and precise adjustment of ejection system settings based on pilot weight, enhancing safety and reducing pre-flight preparation time.
Implementation Method 1
the sensor includes at least one pressure sensor coupled to the bucket portion and configured to detect a pressure applied to the bucket portion of the seat
Implementation Method 2
the sensor includes an actuator configured to exert a force to adjust a height of the bucket portion
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
A system for automatic optimization of an ejection system for an aircraft includes the ejection system having a plurality of adjustable settings. The system further includes a sensor configured to detect weight data corresponding to a weight of a user of the ejection system. The system further includes a controller coupled to the ejection system and to the sensor and configured to adjust at least one of the plurality of the adjustable settings of the ejection system based on the weight data.