Agricultural Planter Weight Transfer Control System

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Solution Overview

Problem

Current agricultural implement weight management systems pose safety hazards and risk of damage during the planting process, as they struggle to efficiently transfer weight between components, particularly between the tractor and the planter, leading to potential accidents and equipment damage.

Innovation Solution

A weight transfer control system utilizing dual-acting hydraulic cylinders and Hall-effect sensors to dynamically adjust the vertical load distribution between the tractor, planter sections, and row units, allowing for real-time monitoring and control of downforce and weight transfer through a centralized monitoring system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If weight transfer between tractor and planter is implemented, then downforce control is improved, but safety hazards and equipment damage risk increase

Engineering Contradiction:
Improvedownforce controlVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system continuously monitors weight distribution using load cells and automatically adjusts weight transfer via hydraulic actuators based on real-time measurements, eliminating the need for manual adjustment and preventing unsafe conditions through automated control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The weight management system automatically monitors and adjusts its own weight distribution without external intervention, using sensors to detect load changes and actuators to self-correct imbalances, thereby maintaining safety while improving downforce control

Inventive Principle:
Principle #25Self-service

2Reliability

If manual weight adjustment is performed, then equipment damage risk is reduced, but operational efficiency decreases

Engineering Contradiction:
Improveequipment protectionVSAvoidoperational efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system replaces manual mechanical weight adjustment with an automated electro-hydraulic control system that uses electronic sensors and actuators to dynamically adjust weight distribution, protecting equipment while maintaining continuous operational efficiency

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

Solution Approach 2:

The control system introduces an intermediary automated management layer between the tractor and planter, using sensors and hydraulic actuators to mediate weight transfer automatically, eliminating the need for manual intervention while protecting equipment from damage

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances safety and reduces the risk of equipment damage by enabling precise and adaptive weight management during planting, improving operational stability and efficiency by maintaining optimal downforce and weight distribution across the planter components.

Implementation Method 1

A weight transfer control system utilizing dual-acting hydraulic cylinders and Hall-effect sensors

Methodology Applied
Scientific EffectHall-effect: Hall Effect

Implementation Method 2

dual-acting hydraulic cylinders to dynamically adjust the vertical load distribution

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Data Source

PatentEP3732943B1Implement weight management systems, methods and apparatus
Publication Date: 2023.07.19 PRECISION PLANTING LLC
  • EP3732943B1 patent drawingFigure 1
  • EP3732943B1 patent drawingFigure 2
  • EP3732943B1 patent drawingFigure 3

AI summary

A method of transferring implement weight involves drawing an implement across a field and determining an estimated load on a wheel (450,460,550) of the implement based on a sum of estimated actuator forces. The sum of estimated actuator forces may be determined by a process (1200) which involves determining a sum of applied row unit downforce (FR) applied to each row unit (200) in a center section (330) of the implement, left and right wing vertical forces (Fw) applied to the center section (330) by respective wing flex actuators (312-1), and a hitch vertical force (FH) applied to the center section (330) by a hitch actuator (345).