A battery management device and a method of controlling thereof

The present invention relates to a battery management apparatus which is connected or integrated in a single battery for the car, the measured current and voltage values ​​of the battery, and measuring a temperature value of the battery, including a temperature sensor, and the measured current, voltage and temperature values and converted to a digital value, a sensing unit, by processing the measured current value, voltage value and a temperature value from the sensing unit, and estimating the remaining capacity and remaining service life, a predetermined period of time measured by a timer interrupt is generated at intervals to correct the error and it handles the control, communication of the sensing portion and the control unit for controlling so that the estimation is carried out in cooperation, there is provided a battery management apparatus comprising: a communication unit for processing communication with an external master. Therefore, according to the present invention by measuring the status of the battery, by controlling them, and the balance of the load that the driver of the load and the vehicle or the vehicle supplied by the battery request, also significantly reduce the defect factors in accordance with the load supply It may not only can improve the reliability of the car. Battery management system, BMS