Method for controlling battery power limit value

A method for managing a battery that includes a plurality of battery cells, the method being part of a control strategy programmed into a module battery management system (MBMS), the method comprising:

• a reference discharging power limit setting operation, via the MBMS, of setting a referential predetermined discharging power limit;
• and
• a real-time discharging power limit setting operation, via the MBMS, of setting a real-time discharging power limit of the battery,
• wherein the real-time discharging power limit setting operation comprises:
• (a-2) an operation, via the MBMS, of measuring a voltage of each of the plurality of battery cells;
• (b-2) an operation, via the MBMS, of determining whether the voltage of a battery cell having a lowest voltage among voltages of the plurality of battery cells measured in operation (a-2) is less than a preset minimum allowable voltage;
• (c-2) an operation, via the MBMS, of measuring a period during which the voltage of the battery cell having the lowest voltage is maintained less than the preset minimum allowable voltage;
• and
• (d-2) an operation, via the MBMS, of reducing the referential predetermined discharging power limit by a predetermined ratio to calculate the real-time discharging power limit when the period during which the voltage of the battery cell having the lowest voltage is maintained less than the preset minimum allowable voltage is equal to or longer than a predetermined period,
• wherein operations (a-2) to (d-2) are repeatedly performed, and
• wherein a number of times operation (d-2) is performed is counted to generate a counted value.