Work Vehicle Implement Control for On-the-Fly Profile Correction
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Solution Overview
Problem
Operators face difficulties in easily changing the position of a work implement during automatic excavation in work vehicles, as they need to perform complex operations to cancel automatic control and manually adjust the implement's position.
Innovation Solution
A control system for work vehicles that includes an operating device and a controller, which generates a target profile for the work implement's movement and allows for real-time correction of this profile based on operator inputs, enabling seamless adjustments without canceling automatic control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic control of the work implement is activated, then the work implement can be automatically returned to the original position, but the operator cannot easily change the position of the work implement without canceling automatic control
Solution Approach 1:
The control system dynamically switches between automatic control mode and manual control mode based on operator input. When the operator operates the lever, the system transitions from automatic position return to manual position following, allowing easy position changes while maintaining automatic control functionality. This dynamic adaptability resolves the contradiction between automation and operational flexibility.
Solution Approach 2:
The system changes the control parameter from fixed automatic position return to dynamic position following based on lever operation detection. By detecting lever operation and switching the control mode parameter, the system enables easy position changes by the operator while maintaining the benefits of automatic control, thus resolving the contradiction between automation extent and ease of operation.
2Ease of operation
If the operator manually operates the lever to change the work implement position during automatic excavation, then the position can be changed, but the automatic excavation must be canceled first
Solution Approach 1:
The system merges automatic control and manual control functionalities into a unified control system. The lever operation serves dual purposes: it can initiate manual control for position changes and simultaneously maintain the automatic excavation framework. This integration eliminates the need for separate mode switching operations, reducing operational complexity while enabling easy position adjustments.
Solution Approach 2:
The lever operates as a universal control input that can trigger different control responses based on the current system state. It can initiate manual position following during automatic excavation, cancel automatic control, or adjust positions in various operational modes. This multi-functionality of the lever reduces the number of separate controls needed and simplifies the operational interface.
Data Source
AI summary
A control system for a work includes an operating device and a controller. The operating device outputs an operation signal indicative of an operation by an operator. The controller is in communication with the operating device. The controller determines a target profile of a terrain to be worked on. The controller generates a command signal to operate the work implement according to the target profile. The controller receives the operation signal from the operating device. The controller determines an operation of the work implement based on the operation signal. The controller corrects the target profile according to the operation by the operator when the operation of the work implement by the operator is performed.