Hydraulic Management System for Auxiliary Tool Maintenance

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Solution Overview

Problem

Hydraulic fluid in work vehicles becomes contaminated faster and filters clog quicker when using auxiliary work tools, making it difficult to anticipate and schedule maintenance.

Innovation Solution

A hydraulic management system that calculates an effective use time for hydraulic elements by multiplying work tool usage with a gain factor, accounting for the increased contamination and maintenance needs of auxiliary tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If auxiliary work tools are used, then productivity and versatility are improved, but hydraulic fluid contamination increases and filter clogging accelerates

Engineering Contradiction:

Improvework tool versatilityVSAvoidhydraulic fluid contamination

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system changes the parameter of maintenance scheduling from fixed time intervals to variable intervals based on actual tool usage patterns. By implementing usage-based maintenance scheduling, the system adapts maintenance timing to the specific contamination risks associated with different work tools, thereby resolving the contradiction between tool versatility and hydraulic fluid contamination.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If auxiliary work tools are used, then work capability is enhanced, but maintenance frequency must increase

Engineering Contradiction:

Improvework tool capabilityVSAvoidmaintenance downtime

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary action by predicting future maintenance needs based on current and historical tool usage data. This allows maintenance to be scheduled in advance at optimal times, preventing unexpected downtime while supporting enhanced work capability through reliable hydraulic system operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring tool usage and adjusting maintenance schedules accordingly. This closed-loop approach ensures that maintenance timing is optimized based on actual system conditions, balancing work capability enhancement with minimized maintenance downtime.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If traditional fixed-schedule maintenance is used, then scheduling simplicity is maintained, but maintenance timing accuracy deteriorates

Engineering Contradiction:

Improvemaintenance scheduling simplicityVSAvoidmaintenance timing accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system enables self-service by automatically tracking tool usage and calculating optimal maintenance timing without requiring manual intervention. This maintains ease of operation while dramatically improving maintenance timing accuracy through precise usage-based calculations.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8775035B2Hydraulic management system and method based on auxiliary work tool usage

Publication Date: 2014.07.08 DEERE & CO

AI summary

A hydraulic management system and method are provided that account for auxiliary work tool usage. The hydraulic management system automatically calculates an effective use time of a hydraulic element, such as a hydraulic fluid or hydraulic filters, by multiplying work tool usage by a desired gain factor, where the gain factor may exceed 1 for auxiliary work tools.