Battery Management Apparatus and Operating Method Thereof

A battery management apparatus comprising one or more processors configured to:

• obtain an open circuit voltage of each of a plurality of battery cells;
• calculate an average open circuit voltage for the open circuit voltage of each of the plurality of battery cells;
• calculate a first linear regression function related to an open circuit voltage of a first battery cell among the plurality of battery cells based on the open circuit voltage of the first battery cell and the average open circuit voltage;
• calculate a first error between a prediction value calculated based on the first linear regression function and the open circuit voltage of the first battery cell;
• and
• diagnose the first battery cell based on the first error.

An operating method of a battery management apparatus comprising:

• obtaining an open circuit voltage of each of a plurality of battery cells;
• calculating an average open circuit voltage for the open circuit voltage of each of the plurality of battery cells;
• calculating a first linear regression function related to an open circuit voltage of a first battery cell among the plurality of battery cells based on the open circuit voltage of the first battery cell and the average open circuit voltage;
• calculating a first error between a prediction value calculated based on the first linear regression function and the open circuit voltage of the first battery cell;
• and
• diagnosing the first battery cell based on the first error.

A non-transitory computer readable medium for storing instructions that, when executed by one or more processors, cause the one or more processors to perform an operating method of a battery management apparatus, the operating method comprising:

• obtaining an open circuit voltage of each of a plurality of battery cells;
• calculating an average open circuit voltage for the open circuit voltage of each of the plurality of battery cells;
• calculating a first linear regression function related to an open circuit voltage of a first battery cell among the plurality of battery cells based on the open circuit voltage of the first battery cell and the average open circuit voltage;
• calculating a first error between a prediction value calculated based on the first linear regression function and the open circuit voltage of the first battery cell;
• and
• diagnosing the first battery cell based on the first error.