본 발명에 따른 배터리 진단 장치는, 복수의 배터리 셀을 포함하는 배터리 진단 장치에 있어서, 각 배터리 셀의 셀 전압을 나타내는 전압 신호를 획득하고, 상기 전압 신호를 기초로, 각 배터리 셀의 이동 평균 전압을 결정하고, 상기 각 배터리 셀의 이동 평균 전압과 복수의 배터리 셀의 이동 평균 전압의 평균간의 차이인 셀 진단 편차를 기초로 각 배터리 셀의 이상을 검출하는 프로세서를 포함한다.
A battery diagnosis apparatus according to the present disclosure is for diagnosis of a cell group including a plurality of battery cells connected in series, and includes 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 cell voltage of each battery cell over time based on 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 based on the time series data, wherein the first average cell voltage is a short term moving average, and the second average cell voltage is a long term moving average, and (ii) detect an abnormal voltage of each battery cell based on a difference between the first average cell voltage and the second average cell voltage.
BATTERY DIAGNOSIS APPARATUS BATTERY DIAGNOSIS METHOD BATTERY PACK AND VEHICLE INCLUDING THE SAME
배터리 진단 장치, 배터리 진단 방법, 배터리 팩 및 자동차
2024-07-12
Patent
Electronic Resource
Korean
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