Method and apparatus for diagnosing battery pack safety of an electric vehicle

Abstract

A method for diagnosing safety of a battery pack includes receiving a current/voltage signal corresponding to the battery pack from a battery management system (BMS). The method further includes performing current/voltage signal processing based on the received signal. The method further includes extracting a Passive Electrochemical Impedance Spectroscopy (PEIS) pattern based on a signal processing result. The method further includes converting an image into an image for the PEIS pattern. The method further includes classifying a battery fault pattern by applying the converted image to a pre-learned model. The method further includes generating a fault tree based on the classified battery fault pattern. The method further includes monitoring safety of the battery pack based on the generated fault tree.

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