Method and apparatus for detecting abnormality in battery pack system
First Claim
1. A method for detecting an abnormality in a battery pack system, the battery pack system being composed of a plurality of battery pack blocks connected with one another by a combination of serial connection and parallel connection, each of the battery pack blocks being constituted by connecting a plurality of cells in series, the method comprising:
- detecting a current value of each of the battery pack blocks; and
detecting an abnormality occurring in the battery pack block based on a detected current value, by using an algorithm constructed in accordance with a connection status of the battery pack blocks.
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Abstract
A battery pack system is composed of a plurality of battery pack blocks, each of which is constituted by connecting a plurality of cells in series, that are connected with one another by a combination of serial connection and parallel connection. The battery pack blocks are each provided with a current sensor for detecting current values. Detection results are inputted to a control section, which processes the detected current values using an algorithm constructed in accordance with the connection status of the battery pack blocks. Thereby, an abnormality of the battery pack block is detected, and an abnormal battery pack block is identified.
26 Citations
4 Claims
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1. A method for detecting an abnormality in a battery pack system, the battery pack system being composed of a plurality of battery pack blocks connected with one another by a combination of serial connection and parallel connection, each of the battery pack blocks being constituted by connecting a plurality of cells in series, the method comprising:
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detecting a current value of each of the battery pack blocks; and
detecting an abnormality occurring in the battery pack block based on a detected current value, by using an algorithm constructed in accordance with a connection status of the battery pack blocks. - View Dependent Claims (2, 3)
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4. An apparatus for detecting an abnormality in a battery pack system, the battery pack system being composed of a plurality of battery pack blocks connected with one another by a combination of serial connection and parallel connection, each of the battery pack blocks being constituted by connecting a plurality of cells in series, the apparatus comprising:
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a current detecting member disposed in each of the battery pack blocks, for detecting a current value of the battery pack block; and
a control section for detecting an abnormality of the battery pack block based on a detected current value, by using an algorithm constructed in accordance with a connection status of the battery pack blocks.
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Specification