BATTERY MANAGEMENT DEVICE, BATTERY SYSTEM, AND HYBRID VEHICLE CONTROL SYSTEM

摘要

The purpose of the present invention is to provide a battery management device that can ensure battery lifespan and that can effectively utilize battery performance. Provided is a battery management device comprising: a deviation amount computation unit 106 for computing a deviation amount Z between a deterioration amount target value or a lifespan target value of a storage battery which is a secondary battery, and a deterioration amount predicted value or a lifespan predicted value which corresponds to the use history of the storage cell in a discretionary period from the past to the present; and a restriction value changing unit 108 that changes charge-discharge restriction values L1A, L2A which are for controlling the deterioration of the storage battery, such changes made on the basis of the deviation amount Z calculated by the deviation amount computation unit 106. The restriction value changing unit 108 includes a first restriction value computation unit 1082 that, on the basis of the deviation amount Z, computes a first restriction value set in which the charge-discharge restriction values L1A, L2A are integrated with each of a plurality of types of control parameters that are mutually correlated and that each change.