Aircraft Lateral Path Control Trajectory Visualization
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Solution Overview
Problem
Current systems for controlling an aircraft's trajectory on a runway do not provide a clear view of potential future trajectories to avoid obstacles, limiting the pilot's ability to determine if a desired trajectory can be achieved.
Innovation Solution
A control system that includes a module for determining current and limit trajectories of the aircraft, displayed on a viewer superimposed on a runway view, using lateral movement devices such as a steerable nose gear wheel and differential braking assembly, allowing the pilot to visualize possible paths and control the aircraft accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a viewer displays only the current trajectory of the aircraft, then the display is simple and clear, but the pilot cannot determine whether a desired future trajectory can be achieved
Solution Approach 1:
The system calculates and displays limit trajectories in advance, showing the pilot the boundaries of achievable paths before the aircraft actually follows them. This allows the pilot to plan and assess whether desired trajectories are attainable without waiting to experience them during flight.
Solution Approach 2:
The system creates visual copies of potential trajectories by superimposing limit trajectory curves on the runway view. These curves represent achievable flight paths without requiring the pilot to physically fly them, providing a safe and informative visualization of options.
2Loss of information
If the system displays multiple limit trajectories, then the pilot gains comprehensive trajectory information, but the display becomes cluttered and harder to interpret
Solution Approach 1:
The system applies different visual characteristics to different trajectory elements, such as using distinct line styles or colors for current versus limit trajectories. This differentiation helps the pilot distinguish between actual and potential paths even when multiple trajectories are displayed simultaneously.
Solution Approach 2:
The system displays only the essential limit trajectories that are relevant to the current flight context, rather than showing all mathematically possible trajectories. This selective display provides sufficient information for decision-making without overwhelming the pilot with excessive visual data.
Data Source
AI summary
A system for controlling a trajectory of an aircraft on the ground, includes a determining module configured to determine a current trajectory of the aircraft on the ground including a series of waypoints planned for an element of the aircraft with unchanged conditions of the lateral movement devices of the aircraft, and at least one limit trajectory, including a series of limit waypoints that may be reached by the element by actuating at least one lateral movement device. The system includes a display assembly comprising a viewer configured to display a view (200) of a runway portion located near the aircraft, and a display generating module configured to display, on the viewer, a current trajectory curve (202) representative of the current trajectory and at least one limit curve (204a, 204b, 206a, 206b) representative of the limit trajectory, superimposed on the view (200).