Electricity: battery or capacitor charging or discharging – Battery or cell discharging – Regulated discharging
Reexamination Certificate
2011-06-21
2011-06-21
Muralidar, Richard V (Department: 2858)
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
Regulated discharging
C320S132000, C320S135000, C320S164000, C324S433000
Reexamination Certificate
active
07965060
ABSTRACT:
A device for appropriately controlling capacitive variations between battery blocks. A voltage measurement section periodically measures a terminal voltage of each battery block by way of respective potential detection lines electrically connected to both terminals of the respective battery blocks. A discharge section effects electric discharge of each battery block by electrically connecting both terminals of a discharge element to both terminals of the respective battery blocks by way of the potential detection line. A discharge control section periodically computes an amount of variations in electromotive force of the battery blocks in accordance with respective terminal voltages measured by the voltage measurement section in parallel with measurement of the respective terminal voltages performed by the voltage measurement section, and commands the discharge section to effect electric discharge of a battery block exhibiting highest electromotive force when the amount of variations exceeds a first reference amount. Further, when the voltage measurement section measures a terminal voltage of the battery block being electrically discharged by the discharge section, the discharge control section commands the discharge section to stop electric discharge of the battery block being electrically discharged before the measurement is performed.
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patent: 2005/0269990 (2005-12-01), Yudahira
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Notice of Grounds for Rejection (JP) mailed Jul. 6, 2010, issued in corresponding Japanese Application No. 2007-007843, filed Jan. 17, 2007 (4 pages).
Christensen O'Connor Johnson & Kindness PLLC
Muralidar Richard V
Panasonic EV Energy Co., Ltd.
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