Aircraft Roll Margin Display for Stalling Risk Anticipation
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Solution Overview
Problem
Current aircraft piloting systems do not adequately aid pilots in anticipating stalling risks, leading to increased cognitive load and potential safety issues, as they primarily rely on direct roll angle limits without providing sufficient margin awareness.
Innovation Solution
An electronic device with an acquisition module for roll angle data, a computing module to calculate roll angle limits and margins, and a display module to show symbols representing current orientation and margins, helping pilots visualize and understand stalling risks through symbols on a screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system displays only roll angle limits directly, then the information provided is minimal and system complexity is low, but the pilot's cognitive load increases and stalling risk anticipation deteriorates
Solution Approach 1:
The patent introduces roll margin as an intermediary parameter between the raw roll angle limit data and the pilot's decision-making process. Instead of displaying only the absolute roll angle limit, the system calculates and displays the margin (difference between current roll angle and limit), which serves as a cognitive mediator that simplifies the pilot's understanding of stalling risk while maintaining system reliability
Solution Approach 2:
The system transforms the display parameter from absolute roll angle values to relative roll margin values. This parameter change makes the information more intuitive for pilots, as they can immediately grasp the safety buffer available rather than interpreting raw angular measurements, thereby improving stalling risk anticipation without significantly increasing system complexity
2Reliability
If the system provides detailed roll margin information, then stalling risk anticipation improves, but the cognitive load on the pilot increases
Solution Approach 1:
The patent transforms complex roll angle limit data into simplified roll margin parameters that are directly relevant to pilot decision-making. By displaying the margin (difference between current and limit angles) rather than raw values, the system maintains high stalling risk anticipation capability while reducing cognitive load, as pilots can intuitively understand the safety buffer without processing complex angular measurements
3Loss of information
If the system calculates and displays roll margins, then pilot awareness of maneuvering margins improves, but the computational requirements and system complexity increase
Solution Approach 1:
The system performs a simple parameter transformation by calculating the difference between current roll angle and limit roll angle to generate roll margin values. This computational approach minimizes complexity while maximizing information utility, as it converts raw sensor data into meaningful safety margins that directly address maneuvering margin awareness without requiring complex algorithms or additional hardware
Data Source
AI summary
This electronic device for aiding with the piloting of an aircraft includes: an acquisition module, configured to acquire a current value of the roll angle of the aircraft; a computing module configured to compute a roll angle limit corresponding to a beginning of stalling of the aircraft; and a display module, configured to display, on a screen, a first symbol indicating a current orientation of the aircraft. The computing module is configured to compute at least one roll margin, each roll margin depending on a corresponding roll angle limit and the current value of the roll angle, and the display module is configured, when the display condition is verified, to display, on the screen, at least one second symbol positioned relative to the first symbol, the deviation between each second symbol and the first symbol representing a respective roll margin.