Aircraft Steep Approach Auto-Arming From Glide Slope Data
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Solution Overview
Problem
Pilots face increased workload during steep approach procedures due to the need to manually arm the steep approach function, which can be challenging, especially in urban or mountainous environments, and is not addressed by existing systems.
Innovation Solution
A flight management system automatically determines the need for a steep approach based on glide slope angle data and initiates the arming of the steep approach function, ensuring the aircraft is capable of performing it safely, thereby reducing pilot workload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If pilots manually arm the steep approach function, then the aircraft can perform steep approaches, but pilot workload increases
Solution Approach 1:
The flight management system automatically determines when steep approach conditions exist and arms the function without pilot intervention. The system serves itself by monitoring approach parameters and autonomously activating the steep approach capability when criteria are met, eliminating the need for manual pilot action
Solution Approach 2:
The system arms the steep approach function in advance based on predicted flight conditions and approach parameters. By evaluating criteria before the actual approach phase and pre-arming the function, the system prepares the aircraft capability beforehand, removing the need for last-minute manual activation during critical approach phases
2Ease of operation
If the steep approach function is automatically armed, then pilot workload is reduced, but system complexity increases
Solution Approach 1:
The flight management system performs multiple functions including navigation, performance management, and now automatic steep approach arming. By making the FMS a multi-functional system that handles diverse aircraft operations from a single platform, the patent avoids adding separate dedicated systems, thereby limiting the increase in overall system complexity
Solution Approach 2:
The automatic arming logic is merged into the existing flight management system rather than being implemented as a separate standalone system. The arming function is integrated with the existing approach management and navigation systems, combining multiple functions into a unified control architecture that reduces overall system complexity
3Reliability
If pilots manually monitor and arm steep approach, then system reliability is maintained, but human error risk increases
Solution Approach 1:
The system continuously monitors approach parameters such as glide path angle, altitude, and horizontal distance to the airport. This feedback mechanism allows the system to automatically determine when steep approach conditions are met and arm the function accordingly, replacing manual pilot judgment with automated sensor-based decision-making that eliminates human error
Solution Approach 2:
The system evaluates arming criteria in advance based on predicted approach conditions and arms the steep approach function before the actual approach phase begins. This preliminary action ensures the function is armed at the correct time based on objective criteria rather than manual pilot action, preventing both inadvertent and missed arming
Data Source
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AI summary
Systems and methods for automatically arming a steep approach function of an aircraft are disclosed. One exemplary method comprises automatically initiating arming of the steep approach function of the aircraft based on data (e.g., glide slope angle) associated with the approach procedure to be performed by the aircraft.