| 摘要 |
When a time average of square values of charge-discharge current Ib (square mean value Sqib) exceeds a predetermined reference value Sqref and when state of charge SOC of a battery is higher than a preset reference level SOCref1, the procedure of the invention corrects a basic input limit Wintmp set according to a battery temperature Tb and the state of charge SOC and sets the corrected basic input limit Wintmp to an effective input limit Win* (steps S140, S180, and S190). When the state of charge SOC is lower than a preset reference level SOCref2, the procedure of the invention corrects a basic output limit Wouttmp set according to the battery temperature Tb and the state of charge SOC and sets the corrected basic output limit Wouttmp to an effective output limit Wout* (steps S200 and S210). This arrangement of the invention more adequately sets the effective input limit Win* and the effective output limit Wout*, compared with a conventional technique of simultaneously correcting the effective input limit and the effective output limit based on the temperature Tb of the battery.
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