Vehicle Turn Path Planning for Sharp Guidance Turns
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Solution Overview
Problem
Conventional agricultural vehicle guidance systems struggle with navigating sharp turns, requiring manual intervention due to insufficient turn radius, leading to inefficiencies and gaps in field coverage.
Innovation Solution
The system includes input interface circuitry to obtain guidance paths, turn identification circuitry to detect sharp turns, and turn pattern selection circuitry to choose from predetermined patterns that satisfy a condition, ensuring the vehicle can autonomously execute turns without manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the vehicle follows the guidance path with sharp turns, then the field coverage is improved, but the vehicle cannot execute the turns autonomously due to insufficient turn radius
Solution Approach 1:
The turn execution is divided into multiple sequential phases: initial straight path traversal, turn initiation at identified point, apex navigation, and final path alignment. This segmentation allows the vehicle to handle sharp turns through controlled sequential actions rather than requiring a single complex maneuver, enabling autonomous execution of previously manual-turn-only sections
Solution Approach 2:
The system identifies turn points and calculates turn patterns in advance before the vehicle reaches them. By pre-processing the guidance path to detect sharp turns and compute appropriate turn patterns (including apex point calculation and steering angle determination), the vehicle can autonomously execute turns without real-time manual intervention, improving both field coverage and operational ease
2Reliability
If manual intervention is required for sharp turns, then the vehicle can navigate turns safely, but operational efficiency decreases due to operator input requirements
Solution Approach 1:
The vehicle autonomously identifies its own turn points, calculates appropriate turn patterns, determines apex points, and executes steering maneuvers without external operator input. The system serves itself by using its sensors and processors to detect sharp turns in the guidance path and automatically generate and follow turn execution paths, thereby maintaining safety while eliminating the productivity loss from manual intervention requirements
Solution Approach 2:
The system continuously monitors the vehicle's position relative to the guidance path and the calculated turn pattern, using feedback from sensors to adjust steering angles and maintain accurate trajectory during turn execution. This closed-loop control ensures safe navigation while enabling autonomous operation that improves operational efficiency by removing the need for operator input
Data Source
AI summary
Methods, apparatus, and articles of manufacture to generate a turn path for a vehicle are disclosed. An example apparatus disclosed herein includes input interface circuitry to obtain a guidance path for a vehicle, turn identification circuitry to identify a turn in the guidance path, and turn pattern selection circuitry to select, from a plurality of predetermined turn patterns, a turn pattern for the turn, wherein the turn pattern satisfies a condition.