To obtain a detector for the residual capacity of a storage battery, capable of stably and precisely detecting the residual capacity of a storage battery.
The detector includes a voltage detecting section 3 for measuring the voltage of the storage battery, a current detector 4 for measuring the current flowing in the storage battery, a mean value calculating section 5 for calculating the mean value of voltages and a mean value of currents during a predetermined time, a characteristic data storing section 6 for storing the relation between voltages and currents preacquired, and an average residual capacity estimating section 7 for estimating the residual capacity of the storage battery from the relation between the mean value of the voltages and the mean value of the current and the relation between the voltages and the currents that are acquired in advance.
KAWAKAMI TOMOYUKI
SUGA IKURO
KOBAYASHI TOMOHIRO
| JP2002189066A | 2002-07-05 | |||
| JP2004150821A | 2004-05-27 | |||
| JP2004271447A | 2004-09-30 |
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka
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