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Battery control apparatus

A technology for control devices and battery packs, applied to battery circuit devices, circuit devices, secondary batteries, etc., can solve problems such as inability to integrate charge and discharge currents, and inability to detect battery abnormalities

Active Publication Date: 2015-04-15
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is a problem that the charging and discharging current cannot be integrated during the idle period when the abnormality detection device is idle, and the abnormality of the battery that occurs during the idle period cannot be detected.

Method used

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  • Battery control apparatus
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Experimental program
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no. 1 approach

[0022] figure 1 It is a configuration diagram of a battery pack system including a battery pack control device according to the present embodiment. Hereinafter, a case where the assembled battery system according to the present embodiment is used as a battery for a vehicle such as a hybrid vehicle or an electric vehicle will be described.

[0023] Such as figure 1 As shown, the battery pack system according to this embodiment includes: a battery pack 100, which has a plurality of cells C1~CN connected in series; a load 200, which is electrically connected to both ends of the battery pack 100; a capacity adjustment circuit 400, It is used to adjust the capacity of the battery pack 100; and the battery controller 500 is used to control the whole battery pack system.

[0024] The battery pack 100 is configured by connecting N cells C1 to CN in series. As the cells C1 to CN, alkaline storage batteries such as nickel-metal hydride batteries, organic electrolyte secondary batte...

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PUM

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Abstract

The invention relates to a battery control apparatus capable of detecting micro-short circuit during interruption. The battery control apparatus is provided with a battery (100) containing a plurality of single batteries (C1-CN), wherein the battery is provided with an adjustment unit adjusting voltage or a charging state of the plurality of single batteries to regulated target values; a calculation unit calculating actual adjustment time, adjustment time of per unit time of actual adjustment and adjustment capacity of actual adjustment until voltage or the charging state of the plurality of single batteries is adjusted to the regulated target values; a storage unit storing a calculation value obtained by the calculation unit; and a determination unit utilizing the above calculation value to determine faises caused by the micro-short circuit in the battery.

Description

technical field [0001] The present invention relates to a control device for a battery pack. Background technique [0002] A detection device for detecting an abnormality of an electric storage device is known, the electric storage device is constituted by connecting a plurality of electric storage units including at least one electric storage element, and the abnormality detection device of the electric storage device includes: an equalization processing unit that executes the process of equalizing the respective capacities or voltage deviations of the plurality of power storage units a plurality of times; an equalization processing interval calculation unit that calculates when the equalization processing unit completes one equalization process The time interval between this one equalization process and another equalization process performed before this one equalization process; the abnormal occurrence warning judgment part, the time interval ratio calculated by the above-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48G01R31/02G01R31/36H02J7/00H02J7/02
CPCY02E60/10
Inventor 加藤行成宮崎泰仁久保田智也下井田良雄
Owner NISSAN MOTOR CO LTD