According to an aspect of the present invention, a battery diagnosis device for a battery including a parallel connection body of a plurality of unit cells comprises: a data acquisition unit configured to collect charging and discharging data including a voltage time series indicating a change in a voltage across both end terminals of the battery over time and a current time series indicating a change in a charging and discharging current flowing through the battery over time; and a data processing unit configured to determine an estimated capacity value indicating a full charge capacity of the battery on the basis of the charging and discharging data. The data processing unit is configured to monitor a change in the estimated capacity value over time to diagnose any abnormality of the parallel connection body.

    Selon un aspect de la présente invention, un dispositif de diagnostic de batterie pour une batterie comprenant un corps de connexion parallèle d'une pluralité de cellules unitaires comprend : une unité d'acquisition de données configurée pour collecter des données de charge et de décharge comprenant une série chronologique de tension indiquant un changement d'une tension s'étendant aux deux bornes d'extrémité de la batterie dans le temps et une série chronologique de courant indiquant un changement dans un courant de charge et de décharge circulant à travers la batterie dans le temps ; et une unité de traitement de données configurée pour déterminer une valeur de capacité estimée indiquant une capacité de charge complète de la batterie sur la base des données de charge et de décharge. L'unité de traitement de données est configurée pour surveiller un changement de la valeur de capacité estimée dans le temps pour diagnostiquer toute anomalie du corps de connexion parallèle.

    본 발명의 일 측면에 따른, 복수의 단위 셀의 병렬 접속체를 포함하는 배터리를 위한 배터리 진단 장치는, 상기 배터리의 양단에 걸친 전압의 경시적 변화를 나타내는 전압 시계열 및 상기 배터리를 통해 흐르는 충방전 전류의 경시적 변화를 나타내는 전류 시계열을 포함하는 충방전 데이터를 수집하도록 구성되는 데이터 취득부; 및 상기 충방전 데이터에 기초하여, 상기 배터리의 만충전 용량을 나타내는 추정 용량값을 결정하도록 구성되는 데이터 처리부를 포함한다. 상기 데이터 처리부는, 상기 추정 용량값의 경시적 변화를 모니터링하여, 상기 병렬 접속체의 이상을 진단하도록 구성된다.


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    Title :

    BATTERY DIAGNOSIS DEVICE, BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY DIAGNOSIS METHOD


    Additional title:

    DISPOSITIF DE DIAGNOSTIC DE BATTERIE, SYSTÈME DE GESTION DE BATTERIE, BLOC-BATTERIE, VÉHICULE ÉLECTRIQUE ET PROCÉDÉ DE DIAGNOSTIC DE BATTERIE
    배터리 진단 장치, 배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 진단 방법


    Contributors:

    Publication date :

    2023-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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