充電状態推定装置、充電状態推定方法

Japanese Patent JP6300000

B2

A battery manager (50) configured to estimate an SOC of a secondary battery (30). The battery manger (50) includes a voltage measurement component (70), a current measurement component (80), and a controller component (60). The voltage measurement component (70) is configured to measure a voltage across the secondary battery (30). The current measurement component (80) is configured to measure a current flowing through the secondary battery (30). The controller component (60) is configured to, when estimation of state of charge of the secondary battery (30) based on an accumulated amount of current measured by the current measurement component (80) is defined as a current accumulation method and estimation of state of charge of the secondary battery (30) based an an open circuit voltage (OCV) of the secondary battery (30) measured by the voltage measurement component (70) is defined as an OCV method, permit estimation of state of charge by the OCV method when a condition that an error in estimation of state of charge of the secondary battery (30) by the current accumulation method exceeds an error in estimation of state of charge of the secondary battery (30) by the OCV method is satisfied.

WO/2016/132895	BATTERY SYSTEM MONITORING APPARATUS
JP5000765	Battery depletion detection system for embedded devices and battery depletion detection method
JP2010508507	Devices and methods for determining the state of charge of a battery when it is not in equilibrium

Eiji Hayashi
Nakamura Shoji

JP2013030726A

March 28, 2018

February 20, 2013

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Gs Yuasa Co., Ltd.

G01R31/36; H01M10/48; H02J7/00

JP2011257226A
JP2012500980A
JP2007178215A
JP20095458A

WO2012169061A1
US20120109556

Akatsuki Joint Patent Office

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