Agricultural Implement Disk Blade Control for Corn Stalk Interference

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Solution Overview

Problem

Agricultural implements face challenges in efficiently navigating through fields with varying residue conditions, particularly with long corn stalks that can interfere with disk blades, leading to slowed or prevented rotation due to wrapping around components.

Innovation Solution

A computing system is integrated into the agricultural implement to access a map of length parameters for corn stalks across the field, using location sensor data to control operating parameters such as force and penetration depth of the disk blades, thereby adjusting their operation to minimize interference from long corn stalks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the agricultural implement uses a standard disk blade operation without adjustment, then the device complexity is low, but the productivity decreases due to corn stalks wrapping around components and preventing rotation

Engineering Contradiction:
Improveoperational efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system performs preliminary action by mapping corn stalk length parameters across the field before the tillage operation. This advance knowledge allows the control system to pre-determine appropriate disk blade operating parameters for each location, preventing wrapping issues before they occur and maintaining continuous productivity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system applies dynamics by continuously adjusting disk blade operating parameters (such as penetration depth, rotational speed, or angle) based on real-time location data and corresponding corn stalk length information from the map. This dynamic adaptation allows the implement to optimize performance for varying residue conditions throughout the field.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the system adjusts operating parameters based on corn stalk length, then the reliability improves by reducing wrapping interference, but the device complexity increases due to computing system and sensors

Engineering Contradiction:
Improveoperational reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system implements feedback by using location sensors to determine the implement's position, retrieving corresponding corn stalk length data from the stored map, and using this information to automatically adjust disk blade operating parameters. This closed-loop feedback mechanism ensures reliable operation by continuously adapting to field conditions.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system replaces manual mechanical adjustment with automated electronic control. Instead of mechanically adjusting disk blade parameters based on operator observation, the computing system automatically controls the operating parameters based on sensor data and stored map information, improving reliability while the automation manages the complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If the disk blade operates at high penetration depth, then the productivity increases by processing more soil, but the harmful factors increase as corn stalks wrap around components more easily

Engineering Contradiction:
Improvesoil processing rateVSAvoidcomponent wrapping interference
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system applies parameter changes by dynamically adjusting disk blade operating parameters based on corn stalk length. When long corn stalks are detected in the upcoming area, the system modifies parameters (such as reducing penetration depth or adjusting rotational speed) to prevent wrapping, while maintaining higher productivity in areas with shorter residue.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240365697A1System and method for controlling the operation of an agricultural implement
Publication Date: 2024.11.07 CNH INDUSTRIAL AMERICA LLC
  • US20240365697A1 patent drawing
  • US20240365697A1 patent drawing
  • US20240365697A1 patent drawing

AI summary

A system for controlling the operation of an agricultural implement includes a disk blade configured to rotate relative to soil in a field across which the agricultural implement is traveling. Moreover, the system includes a computing system configured to access a map identifying a length parameter at a plurality of locations within the field. The length parameter is, in turn, associated with one or more corn stalks that have been severed from a corresponding root ball and are present on a surface of a portion of the field. In addition, the computing system is configured to receive location sensor data indicative of a current location of the agricultural implement within the field and control an operating parameter of the disk blade based on the accessed map and the received location sensor data.