Fly-By-Wire Command Validation for Electric Aircraft Control
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Solution Overview
Problem
In electric aircraft, particularly eVTOLs, there is a need for reliable fly-by-wire flight control systems to ensure safety by accurately detecting pilot inputs and maintaining aircraft integrity in case of component malfunctions, as existing systems may fail to effectively assess maneuverability and propulsor output.
Innovation Solution
A fly-by-wire flight control system that includes sensors communicatively connected to pilot controls, a flight controller with a computing device performing a voting algorithm to determine allowed sensors and generate control surface data correlated to pilot inputs, ensuring active and admissible commands are processed, and using machine-learning processes to refine decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a voting algorithm is implemented to determine allowed sensors and validate command datums, then system reliability is improved, but device complexity increases
Solution Approach 1:
The flight control system is segmented into multiple independent sensors and a voting algorithm that processes commands from different sources. Each sensor operates independently and the voting algorithm segments the validation process into distinct steps (activity check, admissibility check), allowing the system to maintain reliability through modular architecture while managing complexity through structured organization.
Solution Approach 2:
The voting algorithm performs preliminary validation actions by checking whether command datums are active and admissible before executing control commands. This preliminary filtering mechanism prevents invalid commands from reaching the control surfaces, improving reliability by catching errors early in the decision chain rather than after execution.
2Measurement precision
If multiple validation checks (active datum, admissible datum) are performed on command data, then measurement precision is improved, but processing time increases
Solution Approach 1:
The validation process uses periodic checks where the voting algorithm systematically evaluates command datums through a repeating sequence of validation steps (activity determination, admissibility determination). This periodic structure allows the system to maintain high validation accuracy through thorough checking while managing processing time through efficient, rhythmic execution of validation routines.
Solution Approach 2:
The system performs preliminary validation by determining whether command datums are active and admissible before full processing. This preliminary filtering approach ensures that only valid commands proceed to execution, improving measurement precision by catching invalid commands early while minimizing time loss through efficient pre-validation rather than exhaustive post-validation.
Data Source
AI summary
In an aspect a system for fly-by-wire flight control configured for use in electric aircraft including at least a sensor, wherein the sensor is communicatively connected a pilot control and configured to detect a pilot input from the pilot control and generate, as a function of the pilot input, command datum. A system includes a flight controller, the flight controller including a computing device and configured to perform a voting algorithm, wherein performing the voting algorithm includes determining that the sensor is an allowed sensor, wherein determining that the sensor is an allowed sensor includes determining that the command datum is an active datum, determining the command datum is an admissible datum, generating, as a function of the command datum and the allowed sensor, a control surface datum wherein the control surface datum is correlated to the pilot input.