发明授权
- 专利标题： Remaining-battery-capacity estimating apparatus, remaining-battery-capacity estimating method, and remaining-battery-capacity estimating computer program
- 专利标题（中）： 剩余电池容量估计装置，剩余电池容量估计方法和剩余电池容量估计计算机程序
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申请号： US11505982申请日： 2006-08-18
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公开(公告)号： US07683580B2公开(公告)日： 2010-03-23
- 发明人: Toshio Matsushima , Nobuhiko Susuki , Hiroshi Wakaki
- 申请人： Toshio Matsushima , Nobuhiko Susuki , Hiroshi Wakaki
- 申请人地址： JP Tokyo
- 专利权人： NTT Facilities, Inc.
- 当前专利权人： NTT Facilities, Inc.
- 当前专利权人地址： JP Tokyo
- 代理机构： Rader, Fishman & Grauer, PLLC
- 优先权： JP2005-238741 20050819; JP2006-141742 20060522
- 主分类号： H01J7/00
- IPC分类号： H01J7/00 ; G01N27/416 ; G08B21/00
摘要：
A remaining-battery-capacity estimating apparatus estimates the remaining capacity of a battery used as a backup. The apparatus reduces the voltage output from a rectifier to an actual load, measures current flowing from the rectifier and the battery to the actual load and a dummy load device provided separately from the actual load, controls the load of the dummy load device such that the measured current is a predetermined value, and calculates the remaining capacity of the battery based on the terminal voltage of the battery and the discharging time of discharging the battery to the actual load and the dummy load device, by referring to battery data indicating the relationship among the discharging time of the battery, the terminal voltage of the battery, and the remaining capacity of the battery, at a predetermined current of the battery.
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