METHOD FOR PREDICTING BATTERY HEALTH IN CONSIDERATION OF TEMPERATURE OF BATTERY MANAGEMENT SYSTEM

摘要

The present invention relates to a method of predicting a life condition of a battery considering the temperature of a battery management system. The method includes: a step in which an internal control part measures the temperature, voltage, and current of a battery and calculates a state-of-charge (SOC); a step in which the control part checks whether the battery is charged or discharged; a step in which the control part calculates a current accumulated discharge amount if the battery is discharged; a step in which the control part calculates an accumulated discharge capacity when the battery is charged and the accumulated discharge amount is calculated; a step in which the control part calculates a capacity reduction rate of the battery in accordance with an average use temperature of the battery; a step in which the control part calculates a currently usable battery capacity ratio by using the accumulated discharge capacity value and the capacity reduction rate; and a step in which the control part calculates and outputs a state-of-health (SOH) corresponding to a temperature change of the battery based on the battery capacity ratio.