Vehicle Acquisition Path Prediction for Auto-Steering Engagement
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Solution Overview
Problem
Current automatic steering systems for vehicles lack the ability to predict and display the acquisition path to a destination, leading to uncertainty and inefficiency in navigation, particularly in agricultural settings where terrain and obstacles can interfere with the path.
Innovation Solution
A line acquisition system that calculates and displays a predicted acquisition path based on the vehicle's current state, including position, speed, heading, and curvature, allowing users to visualize the path to the destination and make informed decisions about engagement with the automatic steering controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If automatic steering control system determines path on the fly without predicting acquisition path, then the system complexity is reduced, but user situational awareness and navigation certainty deteriorate
Solution Approach 1:
The system calculates and displays the predicted acquisition path in advance before the vehicle actually travels it. This preliminary visualization allows users to see where the vehicle will go before engagement, providing situational awareness without adding complex hardware. The path is computed based on current vehicle state and destination path, then displayed for user review.
2Speed
If the steering controller continuously adjusts direction without knowing acquisition path, then the automatic steering responsiveness is improved, but navigation planning and user decision-making deteriorate
Solution Approach 1:
The acquisition path is calculated in advance based on current vehicle position, heading, speed, and curvature parameters. This pre-computation allows users to review the planned path and make informed engagement decisions before the automatic steering begins its continuous adjustments, combining fast execution with deliberate planning.
3Ease of operation
If no acquisition path prediction is provided, then the ease of operation is maintained, but the ability to avoid terrain and obstacles deteriorates
Solution Approach 1:
The predicted acquisition path serves as an intermediary between the simple automatic steering control and the complex task of avoiding terrain and obstacles. By visualizing the path in advance, users can assess potential conflicts with terrain or obstacles and make informed decisions about engagement, without requiring the system to become significantly more complex.
Data Source
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AI summary
A line acquisition system predicts and displays an acquisition path to reduce the uncertainty surrounding the path taken by a vehicle when acquiring a destination path. The line acquisition system calculates the drivable acquisition path based on the current states of the vehicle, such as position, speed, heading, and curvature. The line acquisition system continually updates and displays the acquisition path as the vehicle is manually steered by the user. When the user engages a steering controller, the last calculated acquisition path is used to automatically steer the vehicle onto the destination path. Displaying the acquisition path allows the user to observe, prior to automatic steering engagement, the path the vehicle would take from its current state to the destination. The user can then decide whether the predicted acquisition path will interfere with terrain or obstacles that the user wishes to avoid.