Automated Implement Coupling via Sensor Feedback
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Solution Overview
Problem
Existing systems for coupling implements to work vehicles are inefficient, requiring multiple alignments and relying on arm support, which limits the maximum force rating of implements due to indirect coupling.
Innovation Solution
A system utilizing a controller with sensors and actuators to automate the coupling process by aligning a connector assembly with a receiver assembly, allowing for direct coupling of implements to the work vehicle frame, thereby increasing the force rating and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual alignment method is used to couple implement to work vehicle, then operator can control coupling process, but coupling time is excessive and requires multiple alignments
Solution Approach 1:
The patent replaces manual mechanical alignment operations with an automated optical sensing and control system. Sensors detect the relative positions of locking features, and a controller automatically adjusts the arm position and actuator settings, eliminating the need for operator intervention in the alignment process while dramatically reducing coupling time.
Solution Approach 2:
The system enables self-alignment through automated detection and adjustment mechanisms. The sensors and controllers work autonomously to position the implement correctly, with the system serving itself rather than requiring external operator control, thus reducing both time and operational complexity.
2Device complexity
If implement is supported only by arm of work vehicle, then coupling structure is simplified, but force rating and work capacity are decreased
Solution Approach 1:
The coupling system is segmented into multiple independent support points: the arm provides primary support while the frame provides secondary support. This segmentation allows each component to bear specific loads, with the frame handling heavy forces and the arm providing positioning, thereby increasing overall force rating without significantly increasing structural complexity.
Solution Approach 2:
The patent merges the arm support function with frame support function to create a dual-support coupling system. By combining these two support structures, the system achieves higher force ratings while maintaining reasonable structural complexity, as the frame and arm work together rather than independently.
3Loss of time
If automated coupling system is implemented, then coupling time is reduced, but system complexity with sensors and actuators is increased
Solution Approach 1:
The controller serves multiple functions: it processes sensor data, calculates alignment requirements, controls actuators, and monitors coupling progress. By making the controller universal and multi-functional, the system reduces the need for separate dedicated components for each function, thereby managing system complexity while achieving automated coupling.
Solution Approach 2:
The patent introduces sensors as intermediary elements between the physical coupling components and the control system. These sensors mediate the alignment process by providing real-time position data, allowing the controller to make precise adjustments without direct physical intervention, thus reducing coupling time while keeping the control architecture manageable.
4Strength
If multiple locking features require precise alignment, then coupling strength is improved, but alignment difficulty and time are increased
Solution Approach 1:
The system uses sensors to provide real-time feedback on the relative positions of locking features. The controller continuously monitors this feedback and automatically adjusts the arm and actuator positions to achieve precise alignment, making the multi-feature coupling process easier to execute while maintaining high coupling strength.
Solution Approach 2:
Manual mechanical alignment for multiple locking features is replaced with an automated optical sensing and control system. The sensors detect the positions of multiple locking features simultaneously, and the controller coordinates their alignment, reducing alignment difficulty while preserving the strength benefits of multiple engagement points.
Data Source
AI summary
A system for coupling an implement to a work vehicle includes a controller comprising a memory and a processor, wherein the controller is configured to receive a first signal indicative of a distance between a protrusion of a connector assembly of an arm of the work vehicle and a receiver assembly of the implement. While the first signal is less than a first threshold, the controller is configured to instruct a first actuator to rotate the connector assembly of the work vehicle, instruct a drive system to move the work vehicle toward the implement, instruct a second actuator to lift the arm of the work vehicle, or a combination thereof, such that the protrusion of the connector assembly engages a recess in the receiver assembly.