Malfunction Type Determination Using Driving Force and Vibration
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Solution Overview
Problem
Conventional techniques fail to accurately determine the type of malfunction in apparatuses, such as work machines, which is essential for effective maintenance.
Innovation Solution
A malfunction-type determination device equipped with a driving force sensor and a vibration sensor, along with a control unit that analyzes the combination of driving force and vibrations to identify the type of malfunction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional techniques use motor control data and detection device output to predict troubles, then trouble prediction capability is provided, but malfunction type determination capability is insufficient
Solution Approach 1:
The patent combines multiple detection approaches by integrating motor control data, detection device output, driving force sensor data, and vibration sensor data into a unified malfunction determination system. This merging of multiple data sources enables both trouble prediction and precise malfunction type determination simultaneously.
Solution Approach 2:
The determination device is designed to perform multiple functions: it can predict troubles in advance and simultaneously determine specific malfunction types. The system handles both general trouble prediction and specific malfunction classification, making it a multi-functional diagnostic tool.
2Loss of time
If only general trouble prediction is performed, then maintenance awareness is provided, but specific maintenance actions cannot be determined
Solution Approach 1:
The system provides feedback by determining specific malfunction types based on analyzed data, which then guides appropriate maintenance actions. The determination result feeds back to the user with specific information about what type of malfunction occurred, enabling targeted maintenance rather than generic checks.
Solution Approach 2:
The system performs preliminary malfunction type determination before maintenance actions are taken. By analyzing driving force and vibration data in advance, the system identifies the specific malfunction type beforehand, allowing maintenance personnel to prepare appropriate tools and procedures ahead of time.
3Measurement precision
If multiple sensors are added to determine malfunction types, then determination precision is improved, but device complexity increases
Solution Approach 1:
The system segments the detection function into specialized sensors: a driving force sensor for detecting motor torque variations and a vibration sensor for detecting mechanical vibrations. Each sensor is optimized for its specific measurement, and the determination device processes these segmented data streams separately before integrating them for comprehensive malfunction analysis.
Data Source
AI summary
A driving force sensor detects a driving force in a rotating mechanism provided in an apparatus. A vibration sensor detects vibrations of the apparatus. A control unit determines a type of a malfunction of the apparatus in accordance with a combination of the detected driving force and the detected vibrations.