Automated Takeoff Decision Logic for Aircraft Runway Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aircraft takeoffs can be hazardous due to the pilot's need to make quick decisions during engine failures or other malfunctions, often resulting in rejected takeoffs after crossing the critical V1 speed, which can lead to catastrophic outcomes as pilots struggle to abort the takeoff in time.
Innovation Solution
An automated take-off system that includes a processing circuit to determine the aircraft's speed and failure events, deciding whether to abort or continue the takeoff and activating an automated braking system to stop the aircraft, aided by audio and lighting cues for the pilot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pilot manually assesses failure events and makes takeoff decisions, then the pilot can use personal experience and judgment, but the decision-making time is 2-5 seconds which may exceed the safe response window
Solution Approach 1:
The system enables self-service by having the automated takeoff system independently monitor failure events, determine aircraft speed, compare with VR speed, and make takeoff decisions without requiring pilot assessment. The system serves itself by autonomously processing sensor data and executing braking commands, eliminating the 2-5 second human decision-making delay while maintaining high reliability through algorithmic consistency.
Solution Approach 2:
The patent replaces the mechanical human decision-making process with an automated electronic system. The processing circuit substitutes the pilot's cognitive assessment and manual control actions with electronic sensors, computational logic, and automated braking actuation. This substitution eliminates human reaction time limitations while maintaining the essential function of safe takeoff decision-making.
2Ease of operation
If the pilot reacts to failure events during takeoff, then the pilot can assess the situation and execute abort or continue decisions, but the reaction time of 2-5 seconds may cause the aircraft to cross V1 speed making abort unsafe
Solution Approach 1:
The system performs preliminary action by continuously monitoring aircraft speed and failure events before a critical situation develops. The processing circuit proactively compares real-time speed data with the pre-calculated VR speed threshold and prepares braking commands in advance. This preliminary monitoring and preparation eliminates the need for reactive pilot assessment, ensuring that if a failure occurs, the system has already been ready to execute the safe decision immediately.
Solution Approach 2:
The system implements feedback by continuously sensing aircraft speed through sensors and comparing this real-time data with the VR speed threshold. The processing circuit receives ongoing feedback from failure event detectors and speed sensors, processes this information, and automatically adjusts the braking system response. This closed-loop feedback mechanism ensures the system maintains awareness of aircraft state and responds appropriately without pilot intervention.
3Loss of time
If the automated braking system is activated, then the decision-making time is reduced by 2-4 seconds, but the system complexity increases with additional processing circuits and sensors
Solution Approach 1:
The system achieves universality by designing the processing circuit to perform multiple functions: monitoring failure events, measuring aircraft speed, comparing speed with VR threshold, determining takeoff decisions, and controlling braking activation. This multi-functional approach consolidates what could be separate complex subsystems into a unified control unit, reducing overall system complexity while maintaining the 2-4 second time advantage through integrated processing.
Solution Approach 2:
The patent merges the failure detection system, speed measurement system, decision logic, and braking control into a single integrated automated takeoff system. The processing circuit combines multiple functions that could operate independently into one unified unit, simplifying the system architecture. This merging reduces the number of separate components and interfaces while achieving the critical 2-4 second decision-making time reduction through coordinated automated operation.
Data Source
AI summary
An automated take-off system for an aircraft includes a processing circuit an automated braking system of the aircraft, the automated braking system configured to cause the aircraft to stop. The processing circuit is configured to determine whether the speed of the aircraft less than a VR speed and an aircraft failure event has occurred and determine whether to abort the takeoff or continue the takeoff in response to determining that the speed of the aircraft is less than the VR speed and that the aircraft failure event has occurred. The processing circuit is configured to cause the automated braking system to stop the aircraft in response to determining to abort the takeoff.