| CPC G01R 31/3842 (2019.01) | 11 Claims |
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1. A battery diagnosing apparatus, comprising:
a battery management system (BMS) including:
a characteristic value extracting unit configured to extract a plurality of characteristic values for each of a plurality of batteries of a battery pack;
a dimension reducing unit configured to reduce a dimension of a characteristic value profile representing a distribution of the plurality of batteries using a predetermined algorithm based on the plurality of characteristic values extracted by the characteristic value extracting unit; and
a state diagnosing unit configured to detect an outlier in the characteristic value profile whose dimension is reduced by the dimension reducing unit, and diagnose a state of each of the plurality of batteries based on the detected outlier,
wherein the BMS is a processor or an application-specific integrated circuit,
wherein the BMS is configured to control the plurality of batteries based on the diagnosis of the state of each of the plurality of batteries obtained by the state diagnosing unit, and
wherein the state diagnosing unit is configured to set a criterion value in the characteristic value profile whose dimension is reduced, calculate a weight and a Euclidean distance for each of the plurality of batteries based on the set criterion value, and detect the outlier based on the weight and the Euclidean distance.
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