Working Machine Lifetime Estimation Using Hydraulic Strain Calculation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for diagnosing working machine failures can estimate failures based on errors or warnings but are unable to estimate the lifetime of machine components effectively.
Innovation Solution
A lifetime estimation system for working machines that includes a strain calculator to determine strain based on operation information from hydraulic cylinder pressure and attitude, and a lifetime calculator to estimate the component's lifespan from detected strain, with a communicator to transmit data for centralized lifetime estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If strain calculation based on hydraulic pressure and attitude information is implemented, then lifetime estimation accuracy is improved, but system complexity deteriorates
Solution Approach 1:
The system utilizes existing sensors and data infrastructure to provide strain calculation functionality. By leveraging already-available hydraulic cylinder pressure sensors and attitude information from the working machine's operational systems, the patent avoids adding complex dedicated measurement equipment, thus improving lifetime estimation accuracy while minimizing the increase in system complexity.
Solution Approach 2:
The patent transforms operational parameters (hydraulic pressure and attitude information) into strain calculations through mathematical relationships. This parameter transformation approach enables accurate lifetime estimation by converting readily measurable operational data into meaningful strain metrics without requiring direct strain measurement equipment, thereby balancing accuracy with system simplicity.
Data Source
AI summary
A lifetime estimation system for a working machine is a lifetime estimation system for a working machine including a work portion provided on a machine body, a hydraulic actuator to actuate the work portion, and an operation detector to detect operation information obtained when the work portion and/or the hydraulic actuator is/are actuated. The lifetime estimation system includes a strain calculator to calculate a strain of a target portion to be subjected to lifetime estimation based on the operation information detected by the operation detector, and a lifetime calculator to calculate a lifetime of the target portion from the strain calculated by the strain calculator.