Aircraft Runway Trajectory Control via Dynamic Steering
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Solution Overview
Problem
Aircraft runway excursions, particularly transverse excursions, occur due to poor steering management during degraded weather conditions, as existing systems rely solely on aircraft speed to distribute steering means usage without considering weather influences.
Innovation Solution
A real-time aircraft trajectory control system that determines and controls steering means usage parameters based on aircraft data and external factors like runway state and weather conditions, using a centralized or distributed control system to minimize the risk of transverse excursions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If steering means usage is distributed based solely on aircraft speed, then the control system is simple, but the trajectory control accuracy deteriorates under degraded weather conditions
Solution Approach 1:
The system changes the parameters used for steering means distribution from solely aircraft speed to include multiple parameters: aircraft speed, runway state (wet/dry/contaminated), and ground weather conditions. This allows dynamic adjustment of steering means usage based on actual conditions, improving trajectory control accuracy without excessive complexity
Solution Approach 2:
The system implements feedback by continuously monitoring aircraft position, runway state, and weather conditions, then using this information to dynamically adjust the distribution of steering means usage. This closed-loop control ensures accurate trajectory maintenance under varying conditions
2Manufacturing precision
If multiple steering means are used simultaneously, then trajectory control accuracy improves, but the device complexity increases
Solution Approach 1:
The system dynamically determines which steering means to use and their respective usage parameters based on real-time conditions. The calculator dynamically adjusts the distribution between nose landing gear steering and rudder usage according to aircraft speed, runway state, and weather, optimizing control accuracy while managing complexity through adaptive control
Solution Approach 2:
The control system segments the steering function into distinct controllable components (nose landing gear steering and rudder), with each having specific usage parameters. This segmentation allows independent control and optimization of each steering means based on conditions, managing overall system complexity
Data Source
AI summary
A system for real-time control of the trajectory of an aircraft on a runway, includes at least one steering system configured to steer the aircraft on the ground, each steering system being associated with at least one use parameter; a computer configured for determining, from aircraft data and external data including runway condition data and ground meteorological data, each steering system intended to steer the aircraft according to a predetermined trajectory and each corresponding use parameter; and a control system configured to control each steering system determined according to each corresponding determined use parameter.