DIAGNOSTIC DEVICE, DIAGNOSTIC METHOD, AND COMPUTER DIAGNOSTIC PROGRAM

A diagnostic device (1) includes: an acquisition unit (2) configured to acquire data of only some battery cells of battery cells constituting a storage battery system; and a diagnostic unit (5) configured to diagnose the storage battery system (9) based on the acquired data. The data includes a volt...

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Bibliographic Details
Main Authors YOSHITAKE, Satoshi, KAZUMI, Masahiro, AKAHORI, Hiroshi
Format Patent
LanguageEnglish
French
German
Published 05.04.2023
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A diagnostic device (1) includes: an acquisition unit (2) configured to acquire data of only some battery cells of battery cells constituting a storage battery system; and a diagnostic unit (5) configured to diagnose the storage battery system (9) based on the acquired data. The data includes a voltage value and an integrated current amount value. The some battery cells include: a low-state MIN battery cell; a low-state MAX battery cell; a high-state MIN battery cell; and a high-state MAX battery cell. The diagnostic unit (5) includes at least one of:determining whether the battery cells are in a balanced state or an imbalance state; calculating an imbalance amount between capacities of the battery cells; orcalculating a value related to a capacity of a battery cell.
Bibliography:Application Number: EP20220198856