| 摘要 |
An ECU in an automatic engine control device predicts a maximum discharging current to be supplied from a battery to a starter during a next restart of the engine based on a present voltage, an internal resistance value of the battery, and a starter total resistance value during automatic engine stop. The ECU further predicts a minimum voltage of the battery during a period until the next restart of the engine based on the present voltage, the present internal resistance value of the battery, and the predicted maximum discharging current. The ECU judges whether or not execution of the next restart of the engine during the automatic engine stop based on the predicted minimum voltage of the battery.
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