On-board Flight Strategy Evaluation System
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Solution Overview
Problem
Current flight management systems are limited in evaluating multiple flight strategies simultaneously, requiring multiple modifications and recalculations, which can be time-consuming and do not allow for fuel constraints or optimal altitude-speed profiles, hindering quick decision-making.
Innovation Solution
An on-board flight strategy evaluation system that dynamically calculates and displays envelopes of flight parameters at reference points, allowing selection and setting of key parameters to explore various strategies without modifying the current flight plan, enabling quick comparison and selection of optimal strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the crew modifies the flight plan to evaluate a strategy, then the strategy evaluation becomes possible, but the process becomes time-consuming and complex
Solution Approach 1:
The system pre-calculates and stores multiple flight strategies with their corresponding parameters (fuel consumption, time, altitude, speed) before the crew needs to evaluate them. When evaluation is needed, the pre-computed strategies are immediately presented for comparison without requiring real-time modifications to the flight plan, thus resolving the contradiction between evaluation accuracy and time consumption
Solution Approach 2:
Instead of modifying the actual flight plan for evaluation, the system creates virtual copies or simulations of flight strategies with different parameters. These copies allow the crew to compare multiple scenarios without altering the active flight plan or consuming excessive calculation time, maintaining both accuracy and efficiency
2Adaptability or versatility
If the crew evaluates multiple strategies sequentially by modifying the flight plan, then comprehensive comparison is possible, but the complexity and number of modifications increase
Solution Approach 1:
The system provides a universal evaluation interface that simultaneously presents multiple flight strategies with their complete parameter sets (fuel, time, altitude, speed). This multi-functional approach allows the crew to compare all strategies in a single view rather than sequentially modifying the flight plan for each strategy, reducing operational complexity while maintaining comprehensive comparison capability
Solution Approach 2:
The system adds a new dimension to strategy evaluation by presenting multiple strategies simultaneously across different parameter dimensions (fuel consumption, time, altitude, speed) in a unified display. This transforms the sequential modification process into a parallel comparison process, reducing the complexity of flight plan modifications while enabling comprehensive strategy assessment
3Measurement precision
If the system recalculates predictions for strategy evaluation, then accurate forecasts are obtained, but the calculation time becomes prohibitive for multiple strategies
Solution Approach 1:
The system performs preliminary calculations of flight predictions for multiple strategies in advance, storing the results for rapid retrieval and comparison. This pre-computation approach ensures accurate predictions are available immediately when the crew needs to evaluate strategies, resolving the contradiction between prediction accuracy and calculation speed
Solution Approach 2:
The system creates computational copies of flight strategies with pre-calculated prediction data (fuel remaining, time of arrival). These copies allow rapid presentation of accurate predictions for multiple strategies without requiring real-time recalculation, maintaining both measurement precision and productivity
Data Source
AI summary
The invention relates to a process and an on-board system for evaluating flight strategies aboard an aircraft, linked with a flight plan (13) of the aircraft, including:calculation means (5) for determining relations between the flight parameters including parameters of time, of fuel quantity, of altitude and of speed,interface means (9) for providing at least one envelope of values (25a-25d) representative of a domain of definition of a plurality of flight strategies,interface means (9) for providing at least one determined strategy defined by determined values assumed by the flight parameters at a reference point,interface means (9) to allow the selection and setting of the value of a first parameter among said flight parameters, generating and supplying another envelope of values allowing exploration of another plurality of possible strategies, andinterface means (9) to allow the selection and setting of the value of a second parameter, generating and supplying another determined strategy.