To control an accumulation device without fluctuating remaining capacity significantly.
To perform the drive control of a motor generator, a balance energy mode, which controls the motor generator based on the balance energy which integrates charging and discharging electric power of an accumulation device, and a difference energy mode, which controls the motor generator based on difference energy equivalent to a difference between the remaining capacity SOCp and the target capacity SOCt of the accumulation device, are set up. When a difference between the remaining capacity SOCp and the target capacity SOCt is lower than a prescribed value S, a large fluctuation of the remaining capacity SOCp can be suppressed by performing the balance energy mode. When a difference between the remaining capacity SOCp and the target capacity SOCt exceeds the prescribed value S, an overdischarged state or overcharged state of the accumulation device can be prevented by performing the difference energy mode.
COPYRIGHT: (C)2008,JPO&INPIT
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| JP2003047108A | ||||
| JP2000228832A |
Yoshitaka Kozuka
Akiko Tsutsui