Work Implement Position Control via Sensor Timer Feedback
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Solution Overview
Problem
Existing position control systems for work implements on machines require operator intervention to maintain the implement in a predetermined position, leading to reduced operator and machine productivity due to the need for continuous monitoring and manual adjustments.
Innovation Solution
A control system that includes a sensor to monitor the position of the work implement, a controller to initiate a timer when the implement drifts from its desired position, and a positioning system to automatically return the implement to its desired position after the predetermined time has elapsed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional hardware such as anti-drift valves or low-leakage hydraulic valves is added to the hydraulic system to limit unintended movement of the implement, then the reliability of position maintenance is improved, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent replaces mechanical/hardware solutions (anti-drift valves, low-leakage hydraulic valves) with an electronic control system comprising sensors, controllers, and timers that monitor implement position and automatically activate the positioning system when drift is detected, thereby maintaining reliability while reducing mechanical complexity
Solution Approach 2:
The control system automatically monitors implement position through sensors and triggers the positioning system when drift occurs, eliminating the need for operator intervention and creating a self-regulating system that maintains position without additional mechanical hardware
2Reliability
If the machine operator manually monitors and adjusts the implement position to prevent drifting, then the position control reliability is improved, but the productivity of the operator and machine decreases
Solution Approach 1:
The system automatically monitors implement position through sensors and triggers the positioning system when drift occurs, eliminating the need for operator intervention and creating a self-regulating system that maintains position without additional mechanical hardware
Solution Approach 2:
The patent implements a feedback control loop where sensors continuously monitor implement position, the controller compares actual position to desired position, and automatically activates the positioning system when drift is detected, ensuring reliable position control without requiring operator attention
3Reliability
If the operator must recognize position changes and manually operate the implement back to desired position, then the position control reliability is improved, but the loss of time and productivity increase
Solution Approach 1:
The timer component triggers the positioning system before significant drift occurs, performing corrective action in advance and preventing the implement from moving to problematic positions, thereby eliminating the need for operator response time
Solution Approach 2:
The patent implements a feedback control loop where sensors continuously monitor implement position, the controller compares actual position to desired position, and automatically activates the positioning system when drift is detected, ensuring reliable position control without requiring operator attention
Data Source
AI summary
A control system includes a work implement positioning system for moving a work implement to a desired position. A sensor is associated with the work implement and configured to obtain position information of the work implement. An electronic controller is configured to initiate a timer when the work implement is placed in the predetermined position. The controller is further configured to upon expiration of the timer, cause the work implement positioning system to return the work implement to the desired position. The controller is further configured to determine that the work implement has returned to the desired position.