| 摘要 |
A device for controlling an assembled battery provided with a plurality of single batteries, in which the device is provided with a targeted voltage setting means for setting a targeted voltage to equalize voltages of the plurality of single batteries, a capacity adjustment means for adjusting a capacity such that the voltages of the plurality of single batteries are equalized at the targeted voltage, an internal state detection means for detecting terminal voltages or SOC of the plurality of single batteries and for detecting, based on the detected terminal voltages or the detected SOC, a voltage difference or a SOC difference among the plurality of single batteries as voltage-difference data or SOC-difference data, a time-series data storage means for storing the voltage-difference data or the SOC-difference data in time-series, and a prediction means for predicting time when the assembled battery becomes a first abnormal state, based on a time-dependent change in the voltage-difference data or the SOC-difference data detected in a voltage region different from the targeted voltage by a predetermined voltage or in a SOC region corresponding to the voltage region, among the voltage-difference data or the SOC-difference data stored in the time-series data storage means. The control device can appropriately predict the time when the assembled battery provided with the plurality of single batteries becomes the abnormal state. |
