基本信息:
- 专利标题： 배터리 진단 장치, 배터리 진단 방법, 배터리 팩 및 자동차
- 专利标题（英）：BATTERY DIAGNOSIS DEVICE, BATTERY DIAGNOSIS METHOD, BATTERY PACK, AND VEHICLE
- 申请号：PCT/KR2021/017684 申请日：2021-11-26
- 公开(公告)号：WO2022114871A1 公开(公告)日：2022-06-02
- 发明人： 성용철 , 안양수
- 申请人： 주식회사 엘지에너지솔루션
- 申请人地址： 07335 서울시 영등포구 여의대로 108, 타워1, Seoul
- 专利权人： 주식회사 엘지에너지솔루션
- 当前专利权人： 주식회사 엘지에너지솔루션
- 当前专利权人地址： 07335 서울시 영등포구 여의대로 108, 타워1, Seoul
- 代理机构： 특허법인 필앤온지
- 优先权： KR10-2020-0163366 2020-11-27
- 主分类号： G01R31/36
- IPC分类号： G01R31/36 ; G01R31/392 ; G01R31/382 ; G01R19/00 ; G01R31/396 ; G01R19/10 ; G01R19/165 ; B60L3/00 ; B60L58/18
A battery diagnosis device according to the present invention is for diagnosis of a cell group including multiple battery cells connected in series, and comprises: a voltage sensing circuit configured to periodically generate a voltage signal indicating a cell voltage of each battery cell; and a control circuit configured to generate time series data indicating a change in the cell voltage of each battery cell over time on the basis of the voltage signal. The control circuit is configured to: (i) determine a first average cell voltage and a second average cell voltage of each battery cell on the basis of the time series data [wherein the first average cell voltage corresponds to a short-term moving average, and the second average cell voltage corresponds to a long-term moving average]; and (ii) detect an anomaly in the voltage of each battery cell on the basis of a difference between the first average cell voltage and the second average cell voltage.