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Battery control device, battery system, and movable body

A battery control and battery technology, which is applied to battery/fuel cell control devices, power consumption devices, secondary battery charging/discharging, etc., can solve the problems of increasing the cost of battery systems and achieve low-cost effects

Active Publication Date: 2017-06-09
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although we know the technology of detecting the characteristics (voltage, current, impedance, etc.) The cost of the system increases

Method used

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  • Battery control device, battery system, and movable body
  • Battery control device, battery system, and movable body
  • Battery control device, battery system, and movable body

Examples

Experimental program
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Embodiment Construction

[0018] A battery control device according to an embodiment includes a current detection unit, a storage unit, and a state determination unit. The current detection unit detects the current flowing in the second battery among the first battery and the second battery connected in parallel and charged with a constant current. The storage unit stores an initial value of a current flowing through the second battery when the second battery is charged with the constant current at an early stage of use. The state determination unit determines the state of the first battery based on the current value detected by the current detection unit and the initial value stored in the storage unit.

[0019] Next, a battery control device, a battery system, and a mobile body according to an embodiment will be described with reference to the drawings.

[0020] (first embodiment)

[0021] figure 1 It is a diagram showing the battery system 100 in the first embodiment. The battery system 100 is a...

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PUM

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Abstract

The invention provides a battery control device, which can judge the degradation degree of multiple batteries in a low cost, a battery system, and a movable body. According to some embodiments, a battery control device has a current detector, a storage, and a state determiner. The current detector detects a current value of a current which flows into a second battery which is connected in parallel to a first battery. The first battery and the second battery are charged with a fixed current. The storage stores an initial value of the current which flows into the second battery if the second battery is charged with the fixed current in an initial use stage of the second battery. The state determiner determines a state of the first battery based on the current value detected by the current detector and the initial value stored in the storage.

Description

[0001] This application claims priority to Japanese Patent Application No. 2015-235925 for which it applied on December 2, 2015, and uses the content for this application. technical field [0002] Embodiments of the present invention relate to a battery control device, a battery system, and a mobile body. Background technique [0003] Conventionally, battery systems mounted on mobile bodies such as vehicles, ships, and aircrafts sometimes use a plurality of storage batteries such as lead storage batteries and lithium-ion storage batteries in combination. If these storage batteries deteriorate due to long-term use, the electromotive force decreases and the output decreases. Therefore, it is necessary to determine the degree of deterioration of these storage batteries and to replace them with batteries that have reached their end of life (assumed service life). [0004] Although we know the technology of detecting the characteristics (voltage, current, impedance, etc.) The c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/44
CPCH01M10/4207H01M10/4285H01M10/441H01M2250/20H01M10/482B60L3/0046H01M10/0525H01M10/06H01M16/00H01M2220/20B60L58/20Y02E60/10Y02T10/70Y02E60/50
Inventor 小岩馨韭泽仁山崎英生安田武司松下弘树景山登茂美
Owner KK TOSHIBA
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