Vehicle Component Life Estimation with Data Gap Compensation
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Solution Overview
Problem
Existing remaining-life estimation apparatuses for vehicle components face accuracy issues due to temporary interruptions in wireless communication, leading to incomplete data sets and reduced estimation accuracy.
Innovation Solution
An apparatus that includes a data transmitting portion to correlate and transmit remaining-life-related data via wireless communication, a data-unobtained running-section specifying portion to identify sections with missing data, and a remaining-life calculating portion that adjusts estimates based on the ratio of total running section to data-obtained section, complementing missing data to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If remaining-life-related data are transmitted via wireless communication, then data collection is enabled, but communication interruptions cause data loss and reduce estimation accuracy
Solution Approach 1:
The system performs preliminary actions by identifying data-unobtained running sections before final remaining life calculation. The data-unobtained running-section specifying portion detects communication interruptions and marks these sections, allowing the remaining-life calculating portion to compensate for missing data in advance, thus maintaining estimation accuracy despite data loss.
Solution Approach 2:
The system implements feedback by using the identified data-unobtained running sections to adjust the remaining life calculation. The remaining-life calculating portion receives feedback about missing data sections and compensates by reducing the estimated remaining life proportionally, ensuring the estimation reflects the actual data quality and communication reliability.
2Ease of operation
If wireless communication is used for data transmission, then remote monitoring is achieved, but communication reliability deteriorates in certain environments
Solution Approach 1:
The system extracts and isolates the communication reliability issue by separately identifying data-unobtained running sections. Instead of treating all data equally, the system extracts the portions affected by communication failures and handles them differently through compensation calculations, thus managing communication reliability issues without compromising the overall monitoring system.
3Measurement precision
If complete data are required for accurate estimation, then estimation accuracy improves, but data completeness becomes difficult to ensure with intermittent communication
Solution Approach 1:
The system changes the parameter of data completeness by introducing a compensation mechanism. Instead of requiring complete data, the system allows for incomplete data by adjusting the remaining life calculation based on the proportion of data-unobtained sections. This parameter change enables accurate estimation even when data quantity is insufficient due to communication interruptions.
Data Source
AI summary
An apparatus for estimating a remaining life of a vehicle component included in a vehicle, based on various kinds of remaining-life-related data that influence the remaining life. The apparatus includes: a data transmitting portion provided in the vehicle, and configured to correlate the remaining-life-related data with running of the vehicle and to transmit the remaining-life-related data correlated with the running of the vehicle, to a data management center provided outside the vehicle, via a wireless communication; a data-unobtained running-section specifying portion configured to specify a data-unobtained running section in which the remaining-life-related data has been unobtainable by the data management center; and a remaining-life calculating portion configured to estimate the remaining life, by taking account of a reduction of the remaining life of the vehicle component in the data-unobtained running section.