Flight Management System Performance Correction
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Solution Overview
Problem
Current flight management systems struggle to accurately represent the specific performance characteristics of individual aircraft due to aging components and maintenance, as existing performance databases are type-specific and not adaptable without costly and inconvenient updates.
Innovation Solution
A method and device for adjusting performance variables within the flight management system using correction data, which are checked for authorization and applied to update performance variables without generating a new performance database, allowing adaptation to an aircraft's current state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a performance database representative of a given type of aircraft is used, then the system meets qualification standards and is easy to operate, but it cannot accurately represent the specific characteristics of individual aircraft due to aging and maintenance
Solution Approach 1:
The patent segments the performance database into two parts: a base performance database representative of the aircraft type (meeting qualification standards) and individual correction files for each specific aircraft. This segmentation allows the system to maintain the standardized base database while adding customized correction data for aging and maintenance adjustments without compromising the overall system structure.
Solution Approach 2:
The patent merges the base performance database with individual correction files to create an adjusted performance model. The correction files contain specific characteristics of individual aircraft (aging, maintenance history) that are combined with the standardized base data, enabling accurate representation of individual aircraft while maintaining compliance with qualification standards.
2Measurement precision
If new performance databases are generated for individual aircraft to adapt to aging and maintenance, then accurate individual performance representation is achieved, but the process becomes long, costly, and configuration management becomes inconvenient
Solution Approach 1:
The patent implements a dynamic correction file system where individual aircraft performance data can be updated without regenerating the entire performance database. The correction files are dynamically adjusted based on aging and maintenance events, allowing the system to adapt to changing aircraft characteristics while maintaining a stable base database structure.
Solution Approach 2:
Instead of creating entirely new performance databases for each aircraft, the patent uses copying the base performance database structure and adds only the necessary correction data in separate correction files. This approach reduces complexity by reusing the standardized base database while minimizing the amount of custom data that needs to be generated and managed for each individual aircraft.
3Adaptability or versatility
If correction data are freely applied to performance variables, then individual aircraft characteristics are accurately represented, but manufacturer authorizations and prohibitions may be violated
Solution Approach 1:
The patent implements a feedback mechanism where the system checks whether applying correction data to performance variables is authorized by the manufacturer. Before applying corrections, the system verifies compliance with manufacturer authorizations and prohibitions, providing feedback to ensure that individual aircraft adaptations do not violate original design specifications or safety requirements.
Solution Approach 2:
The patent introduces an intermediary verification layer between the correction data application process and the performance variable adjustment. This intermediary checks manufacturer authorizations and prohibitions before allowing corrections to be applied, ensuring that adaptability to individual aircraft characteristics does not compromise compliance with original manufacturer specifications.
Data Source
AI summary
A method and device for adjusting performance variables of an aircraft. The device which is intended for adjusting performance variables, the performance variables being generated by at least one performance module, includes an auxiliary data input unit for entering into a flight management system correction data intended to be used for adjusting at least one associated performance variable, and a correction unit for carrying out a correction, the correction including adjusting the associated performance variable on the basis of the input correction data.