Work Vehicle Control System Correcting Path Deviation via Implement Tilt
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Solution Overview
Problem
Work vehicles deviate from their intended straight path due to uneven ground forces, leading to inefficient travel and reduced work efficiency, as existing correction methods result in repetitive left and right turns.
Innovation Solution
A control system for work vehicles that includes sensors and a controller to detect the actual traveling direction, set it as a target when straight travel conditions are met, calculate bearing differences, and adjust the work implement's tilt angle to minimize deviations, thereby correcting the path with reduced turning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the work vehicle returns to the straight path by changing traveling direction to the opposite side, then the work vehicle can be returned to the straight path, but the work efficiency drops due to repetitive turning
Solution Approach 1:
Instead of changing the traveling direction to return to the straight path, the invention inverts the approach by changing the work implement's tilt angle while maintaining the original traveling direction, thereby correcting positioning without repetitive turning
Solution Approach 2:
The invention extracts the turning action from the traveling direction control and applies it separately to the work implement's tilt angle control, allowing independent correction of positioning accuracy without affecting the vehicle's forward progress
2Stability of the object's composition
If the work vehicle repeatedly turns left and right to maintain straight path, then the work vehicle can stay on the straight path, but the work efficiency is reduced
Solution Approach 1:
The work implement's tilt angle serves as an intermediary control variable that mediates between positioning accuracy and traveling stability, allowing correction of path deviation without requiring changes to the vehicle's traveling direction
Solution Approach 2:
The invention segments the control function into independent components: traveling direction control and work implement tilt control, allowing each to be optimized separately for their respective functions without interference
Data Source
AI summary
A control system for a work vehicle includes a sensor and a controller. The sensor outputs a signal indicating an actual traveling direction of the work vehicle. The controller communicates with the sensor. The controller is programmed so as to execute the following processing. The controller acquires the actual traveling direction of the work vehicle. The controller sets the actual traveling direction as a target traveling direction when a condition that indicates that the work vehicle has started straight travel has been met. The controller calculates a bearing difference between the target traveling direction and the actual traveling direction. The controller moves the work implement at a target tilt angle corresponding to the bearing difference so as to reduce the bearing difference.