Module Balancing Method And Battery Management System Employing Same

Abstract: The present invention relates to a module balancing method and a battery management system employing same the battery management system of the present invention comprising: a charge equalization circuit for performing module balancing among a first module a second module and a third module the first module comprising multiple central cells each having a potential falling within a central potential range among multiple battery cells connected in series the second module comprising at least one lower cell having a potential falling within a lower potential range and the third module comprising at least one upper cell having a potential falling within an upper potential range; and a control unit for calculating a module voltage of each of the first module the second module and the third module on the basis of a cell voltage of each of the multiple battery cells determining an energy transfer direction on the basis of the calculated module voltage and controlling the module balancing according to the determined energy transfer direction.

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