Device for detecting a battery condition
AssigneesMatsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
InventorsKeiichi Minamiura, Toshiaki Nakanishi
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Abstract
In a battery control device for controlling input to and output from a battery pack of the present invention, the battery pack includes a plurality of serially-connected battery blocks each including a plurality of serially-connected unit batteries. The device includes: an internal resistance measurement section for each battery block; and a first malfunctioning battery detection section for detecting the unit battery as a leakage malfunctioning battery based on an internal resistance variation measured for each battery block during a prescribed time interval of a charging operation, wherein detection information about the leakage malfunctioning battery is reflected in the control of charging and discharging operations.
Claims10
A battery control device for controlling input to and output from a battery pack, wherein the battery pack includes a plurality of serially-connected battery blocks each including a plurality of serially-connected unit batteries, the device comprising:
- an internal resistance measurement section for each battery block;
- a first malfunctioning battery detection section for detecting a unit battery as a leakage malfunctioning battery based on an internal resistance variation measured for each battery block during a prescribed time interval of a charging operation;
- and
- a control section for controlling charging and discharging operations as a function of detection information about the leakage malfunctioning battery.
Dependencies are inferred from the claim text.