| 摘要 |
PROBLEM TO BE SOLVED: To obtain a charging/discharging controller of a secondary battery, where battery temperature is estimated accurately without time lag, and charging/discharging is controlled based on the estimated battery temperature. SOLUTION: A hybrid ECU executes a program, including a step (S1010) of calculating the SOC of a battery, a step (S1020) of calculating initial WIN (charging side limit power) and initial WOUT (discharging side limit power), a step (S1030) of detecting the outside air temperature and the battery temperature, a step (S1040) of detecting the battery current level, a step (S1050) of calculating the estimated battery temperature, steps (S1060, S1070) of calculating the load limitation ratio using the higher one of the estimated battery temperature and the detected battery temperature, and a step (S1110) of calculating the final WIN and final WOUT by using the output limiting ratio. COPYRIGHT: (C)2006,JPO&NCIPI
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