METHOD FOR CORRECTING ERROR OF BATTERY SENSOR

摘要

PURPOSE: A method for correcting error of battery sensor is provided to determine whether mutual deviation is created or not by comparing prediction data and real measurement value. CONSTITUTION: A method for correcting error of battery sensor comprises next steps: calculating prediction current variation value which predicts current variation value in accordance with discharge; measuring real current variation value according to the discharge of battery using the battery sensor; grasping possible errors by cross-comparing the predicted current change value and real current change value; correcting measurement error of the battery sensor; determining as malfunction of the battery sensor or the hangover of electric equipment in case the current variation value is not available; and distinguishing malfunction type and diagnosing the malfunction at the same time.