OVERHEATING DIAGNOSIS METHOD, OVERHEATING DIAGNOSIS APPARATUS AND BATTERY SYSTEM PROVIDING THE SAME

An overheating diagnosis apparatus includes a measuring unit configured to measure a temperature of an object, a storage unit configured to store a temperature value measured by the measuring unit, and a control unit. The control unit is configured to extract, at each diagnosis point at which overheating of the object is diagnosed, a plurality of previous diagnosis points corresponding to a predetermined number of samples based on a diagnosis point, calculate a moving average value which is an average of a plurality of temperature values corresponding to each of the plurality of previous diagnosis points, and calculate an standard deviation average value which is an average of a plurality of standard deviations corresponding to each of the plurality of previous diagnosis points.