Patent ID: 8952663
Filing Date: 2015-02-10
Classification: H01M,H02J,Y02E

Abstract:
1. A charge and discharge control apparatus performing charge and discharge control on a group of a predetermined number of battery arrays into which a battery assembly that is an assembly of a plurality of batteries is divided, the battery arrays being connected together in parallel, the apparatus comprising: an instruction acquisition section acquiring an entire charge or discharge instruction intended for the entire battery array group; a start processing section starting charging or discharging each of the battery arrays at a uniform charge or discharge power value obtained by dividing an entire charge or discharge power value contained in the acquired entire charge or discharge instruction by a number of the battery arrays; a comparison section acquiring a charge or discharge status of each of the battery arrays after the beginning of the charge or discharge and comparing the charge or discharge status with a predetermined charge or discharge set value for the entire battery array group; and a change process section changing the charge or discharge power value of each of the battery arrays based on a result of the comparison, wherein the change process section includes a mode selection section including a plurality of predetermined change process modes in which at least one of the charge or discharge process time and a degree of charge is different, and selecting one of the plurality of change process modes based on a predetermined selection criterion.