Charge / discharge test system and program

The charge-discharge test system automates abnormality diagnosis and proposes solutions using predefined data, addressing the challenge of interruptions in long-duration tests by identifying causes and suggesting countermeasures.

WO2026154740A1PCT designated stage Publication Date: 2026-07-23TOKYO SEIMITSU CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
TOKYO SEIMITSU CO LTD
Filing Date
2025-10-10
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing charge and discharge test systems for secondary batteries in electric vehicles are prone to abnormalities during long-duration tests, which can be difficult to analyze and often require expert intervention, leading to inefficient and prolonged interruptions.

Method used

A charge-discharge test system equipped with an abnormality detection unit, event identification unit, and cause estimation unit that utilizes pre-defined cause and countermeasure data to automatically diagnose and propose solutions for detected abnormalities, leveraging user inputs and sensor data.

Benefits of technology

Facilitates quick and accurate identification and resolution of test system abnormalities, reducing downtime and enhancing test efficiency by providing automated diagnostic capabilities.

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Abstract

This charge / discharge test system is provided with: a charge / discharge control unit that controls charging and discharging for testing a secondary battery; an abnormality detection unit that detects an abnormality related to the test; an event identification unit that identifies an event occurring when the abnormality is detected; and a cause estimation unit that refers to cause case data defining a correspondence relationship between a cause example that may cause an abnormality and an event that may occur when the abnormality is caused by the cause example to estimate the cause of the occurring abnormality detected from the identified event.
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