Battery Pack and Method for Preventing Misdiagnosis of Overheating Caused by Ambient Temperature

Abstract

A battery pack, in which an internal temperature and an external temperature of the battery pack are measured at a predetermined period from different temperature sensors installed in each of battery cells, a BMS, and a pack case of the battery pack and then be compared with a predetermined reference value to perform battery overheating diagnosis, in particular, determine whether causes of the overheating are due to internal or external factors of the battery pack, and a method for diagnosing the overheating.

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