Work Vehicle Topography Control for Gradient Load Balancing
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Solution Overview
Problem
Existing control systems for work vehicles fail to manage load variations effectively on upward and downward gradients, leading to excessive load on the work implement and reduced efficiency.
Innovation Solution
A control system that acquires actual topography data to determine whether the terrain is an upward or downward gradient, adjusting the target design topography accordingly to prevent excessive load and enhance work efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the controller determines digging start position based only on undulation size without considering gradient direction, then the control system is simple, but the load on the work implement becomes excessive or work efficiency is reduced
Solution Approach 1:
The controller changes the target design topography parameters based on the determined gradient direction (upward or downward). When an upward gradient is detected, the controller adjusts the target trajectory to account for increased load, and when a downward gradient is detected, it adjusts for reduced load, thereby optimizing work efficiency without excessive complexity
Solution Approach 2:
The control system dynamically adapts the target design topography based on real-time gradient detection. The controller modifies the digging start position and target trajectory dynamically according to the gradient direction, allowing the system to respond to varying terrain conditions while maintaining reasonable complexity
2Device complexity
If the controller determines digging start position based only on undulation size without considering gradient direction, then the control system is simple, but the load on the work implement becomes excessive
Solution Approach 1:
The controller modifies the target design topography parameters based on gradient direction detection. For upward gradients, it adjusts parameters to prevent excessive load, and for downward gradients, it adjusts to avoid insufficient load, thereby controlling the force on the work implement without significantly increasing system complexity
Solution Approach 2:
The controller uses feedback from the gradient detection to continuously adjust the target design topography. By monitoring the gradient direction and adjusting the digging start position and target trajectory accordingly, the system maintains optimal load levels on the work implement
Data Source
AI summary
A control system for a work vehicle includes a controller. The controller acquires actual topography data indicating an actual topography to be worked. The controller determines a target design topography indicating a target trajectory of a work implement based on the actual topography. The controller determines whether the actual topography is an upward gradient or a downward gradient based on the actual topography data. The controller changes the target design topography according to a result of determination of the gradient.