BATTERY MANAGEMENT SYSTEM AND CONTROLLING METHOD THEREOF

A battery management system in which each of a plurality of battery management systems performs an individual task and transmits results of the tasks to a master battery management system wirelessly, the battery management system including: a task information storage unit including a list of tasks performed by each of the plurality of battery management systems, the performance time, performance cycle, and work priority of each task included in the list of tasks, and the communication priority among the plurality of battery management systems, a schedule determination unit configured to determine a work schedule on the basis of data stored in the task information storage unit, and a priority changing unit configured to adjust the work priority of a task based on the work schedule determined by the schedule determination unit, wherein the schedule determination unit is further configured to adjust the work schedule according to the adjusted work priority.