Remaining life estimation device and remaining life estimation program
The remaining life estimation device and program address the issue of inaccurate remaining life estimation in fault diagnosis systems by correcting reference relationships with actual usage data, enabling precise timing for device replacements.
JP2026111336APending Publication Date: 2026-07-03DENSO CORP
Patent Information
- Application Number
- JP2024226652
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
Existing fault diagnosis systems for in-vehicle devices can detect pre-failure phenomena but fail to accurately estimate the remaining life of the devices, leading to potential replacements at inappropriate times.
Method used
A remaining life estimation device and program that acquires usage information, corrects a reference lifespan determination relationship with actual life factor information, and estimates the remaining life of electronic devices using a corrected determination relationship.
Benefits of technology
Accurately determines the remaining life of electronic devices, allowing for timely and appropriate replacements based on actual usage conditions.
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Smart Images
Figure 2026111336000001_ABST
Abstract
To provide a remaining life estimation device that can accurately estimate the remaining life of an electronic device. [Solution] A remaining life estimation device for estimating the remaining lifespan of an ECU 100, comprising: a relationship acquisition unit 102 that acquires a reference remaining lifespan determination relationship, which is a reference relationship that can determine the remaining lifespan from usage information that increases with the use of the ECU 100; an actual information acquisition unit 103 that acquires actual information of life factors that are related to life factors that change the remaining lifespan and indicate the actual usage state of the ECU 100; a relationship correction unit 104 that corrects the reference remaining lifespan determination relationship based on the actual information of life factors to determine a corrected remaining lifespan determination relationship; a usage information acquisition unit 105 that acquires usage information of the ECU 100; and a remaining lifespan estimation unit 106 that determines an estimated remaining lifespan, which is the estimated remaining lifespan of the electronic device, from the usage information of the ECU 100 and the corrected remaining lifespan determination relationship.
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Citation Information
Patent Citations
JP1974040779A