Agricultural Implement Tire Inflation System for Soil Compaction Control

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Solution Overview

Problem

Existing automatic tire inflation systems for agricultural implements fail to minimize soil compaction caused by the implements themselves, despite successfully addressing compaction from prime mover vehicles.

Innovation Solution

A tire inflation system for agricultural implements that uses sensors to monitor load and soil conditions, adjusting tire pressure in real-time to optimize contact area and prevent bulldozing, incorporating a processor, load sensors, soil characteristic determiners, and a database to correlate soil conditions with optimal tire pressures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If tire pressure is increased to support heavier implement loads, then load-bearing capacity is improved, but soil compaction and implement frame bounce increase

Engineering Contradiction:
Improveload-bearing capacityVSAvoidsoil compaction
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts tire pressure in real-time based on varying implement loads and operating conditions. The controller receives input from load sensors, GPS location, and implement speed sensors, then automatically modifies tire pressure through compression or decompression mechanisms to optimize the balance between load support and soil protection

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the physical parameter of tire pressure to adapt to different operating conditions. By varying pressure levels according to implement load, soil type, and operational phase, the system optimizes both structural support and soil interaction characteristics without manual intervention

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If deep tilling is used to de-compact soil, then soil compaction is reduced, but fuel consumption, labor costs, and surface residue protection increase

Engineering Contradiction:
Improvesoil compactionVSAvoidfuel consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system prevents soil compaction from occurring in the first place by maintaining optimal tire pressure throughout field operations. By proactively managing tire-ground interaction, the system eliminates the need for corrective de-compaction operations like deep tilling, thereby avoiding associated fuel and labor costs

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system converts the potential harmful effect of heavy implement loads into a beneficial outcome by using real-time pressure adjustment to distribute weight optimally. This transforms what would be compaction-causing force into a controlled interaction that protects soil structure while maintaining operational effectiveness

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Object-affected harmful factors

If tire pressure is reduced to minimize soil compaction, then soil protection is improved, but load-bearing capacity and ride stability decrease

Engineering Contradiction:
Improvesoil compactionVSAvoidride stability
Core Design Contradiction:
Object-affected harmful factorsVSStability of the object's composition

Solution Approach 1:

The system dynamically adapts tire pressure to match actual operating conditions, ensuring stability when loads are heavy and soil protection when loads are light. The real-time control system responds to changing conditions such as implement fill level, terrain variations, and operational phase to maintain optimal pressure throughout the work cycle

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses feedback from load sensors, GPS location data, and implement speed sensors to continuously monitor operating conditions and adjust tire pressure accordingly. This closed-loop control ensures that pressure is optimized for both stability and soil protection based on actual field conditions rather than static pre-setting

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS7302837B2Tire inflation system for use with an agricultural implement
Publication Date: 2007.12.04 BLUE LEAF I P INC
  • US7302837B2 patent drawing
  • US7302837B2 patent drawing
  • US7302837B2 patent drawing

AI summary

A central tire inflation system for an agricultural implement that is linked to a work vehicle for movement in a field. The central tire inflation system includes a database of soil conditions corresponding to location, an implement load sensor, a location determiner, a processor, and tire inflation controller. The processor determines the proper inflation of implement tires based on factors including the soil conditions and implement load.