Ground Engaging Tool Depth Control for Seeding Implements
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Solution Overview
Problem
Typical seeding implements often deposit seeds unevenly, with disabled row units' blades disturbing adjacent seeded rows due to their inability to retract from the soil, leading to inefficient seed distribution and soil disturbance.
Innovation Solution
A seeding implement control system that includes a controller and actuator to independently control the position of ground engaging tools, allowing them to transition between engaged and disengaged positions, with the disengaged position calibrated and stored for each row unit, ensuring blades do not disturb adjacent rows when seed deposition is halted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the blade of a disabled row unit remains disposed within the soil, then the row unit structure is simple and maintains consistent position, but the blade disturbs adjacent seeded rows causing harmful effects
Solution Approach 1:
The ground engaging tool is made dynamically adjustable between engaged and disengaged positions. The actuator system enables the blade to transition from a fixed engaged position to a raised disengaged position, allowing the tool to adapt its state based on operational requirements. This dynamic capability eliminates soil disturbance by disabled blades while maintaining structural simplicity through automated control.
2Object-affected harmful factors
If the ground engaging tool is made movable between engaged and disengaged positions, then soil disturbance is reduced, but the control system complexity increases
Solution Approach 1:
The control system is segmented into modular components: individual actuators for each row unit, a controller that processes signals, and sensors that monitor blade position. This segmentation allows independent control of each ground engaging tool, enabling precise management of blade positions to prevent disturbance to adjacent rows while maintaining overall system manageability through distributed control architecture.
Solution Approach 2:
The system incorporates feedback mechanisms where sensors monitor the actual position of the blade and compare it to the desired position. The controller receives this feedback information and adjusts actuator commands accordingly to maintain accurate blade positioning. This closed-loop feedback ensures reliable operation of the enhanced control system while minimizing soil disturbance.
Data Source
AI summary
In one embodiment, a seeding implement control system includes a controller including a memory and a processor. The controller is configured to receive a first signal indicative of a target extension length of an actuator. The actuator is configured to control a ground engaging tool of a row unit. The actuator is also configured to position a lower surface of a blade of the ground engaging tool a target distance above a soil surface while the actuator is extended to the target extension length. The controller is further configured to store the target extension length in a memory device of the controller. The controller is configured to instruct the actuator to transition to the target extension length in response to receiving a second signal indicative of transitioning the ground engaging tool to a disengaged position.