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 DEVICE, BATTERY DIAGNOSIS METHOD, BATTERY PACK, AND VEHICLE
BATTERIEDIAGNOSEVORRICHTUNG, BATTERIEDIAGNOSEVERFAHREN, BATTERIEPACK UND FAHRZEUG
DISPOSITIF DE DIAGNOSTIC DE BATTERIE, PROCÉDÉ DE DIAGNOSTIC DE BATTERIE, BLOC-BATTERIE ET VÉHICULE
2024-01-03
Patent
Electronic Resource
English
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