Provided are a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus according to the present invention comprises: a data acquisition unit that obtains a first target full cell profile indicating a correspondence relationship between a capacity factor and a voltage of a target cell while a first electrical stimulus is applied to the target cell; and a control circuit that generates an estimated full cell profile on the basis of the first target full cell profile and an overpotential profile. The control circuit determines a first performance factor group as a result of first estimation of the charging and discharging performance of the target cell, by applying a cell diagnosis logic to the estimated full cell profile. The control circuit determines a second performance factor group as a result of secondary estimation of the charging and discharging performance of the target cell, by applying a factor correction model to the first performance factor group. The second performance factor group includes a result of estimation of the NP ratio of the target cell.

    L'invention concerne un appareil de diagnostic de batterie et un procédé de diagnostic de batterie. L'appareil de diagnostic de batterie selon la présente invention comprend : une unité d'acquisition de données qui obtient un premier profil de cellule complet cible indiquant une relation de correspondance entre un facteur de capacité et une tension d'une cellule cible tandis qu'un premier stimulus électrique est appliqué à la cellule cible ; et un circuit de commande qui génère un profil de cellule complète estimé sur la base du premier profil de cellule complet cible et d'un profil de surpotentiel. Le circuit de commande détermine un premier groupe de facteurs de performance suite à une première estimation des performances de charge et de décharge de la cellule cible, par application d'une logique de diagnostic de cellule au profil de cellule complet estimé. Le circuit de commande détermine un second groupe de facteurs de performance suite à une seconde estimation des performances de charge et de décharge de la cellule cible, par application d'un modèle de correction de facteur au premier groupe de facteurs de performance. Le second groupe de facteurs de performance comprend un résultat d'estimation du rapport NP de la cellule cible.

    배터리 진단 장치 및 배터리 진단 방법이 제공된다. 본 발명에 따른 상기 배터리 진단 장치는, 대상 셀에 제1 전기 자극이 인가되는 동안의 상기 대상 셀의 용량 팩터와 전압 간의 대응 관계를 나타내는 제1 대상 풀셀 프로파일을 획득하는 데이터 획득부, 및 상기 제1 대상 풀셀 프로파일 및 과전압 프로파일을 기초로 추정 풀셀 프로파일을 생성하는 제어 회로를 포함한다. 상기 제어 회로는, 상기 추정 풀셀 프로파일에 셀 진단 로직을 적용하여, 상기 대상 셀의 충방전 성능에 대한 1차 추정 결과로서의 제1 성능 인자 군을 결정한다. 상기 제어 회로는, 상기 제1 성능 인자 군에 인자 보정 모델을 적용하여, 상기 대상 셀의 충방전 성능에 대한 2차 추정 결과로서의 제2 성능 인자 군을 결정한다. 상기 제2 성능 인자 군은, 상기 대상 셀의 NP 비율의 추정 결과를 포함한다.


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    Titel :

    BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD


    Weitere Titelangaben:

    APPAREIL DE DIAGNOSTIC DE BATTERIE ET PROCÉDÉ DE DIAGNOSTIC DE BATTERIE
    배터리 진단 장치 및 배터리 진단 방법


    Beteiligte:
    YOON SEO-YOUNG (Autor:in) / CHOI SOON-HYUNG (Autor:in) / KIM YOUNG-DEOK (Autor:in)

    Erscheinungsdatum :

    30.05.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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