STATE CALCULATING APPARATUS AND STATE CALCULATING METHOD FOR BATTERY

STATE CALCULATING APPARATUS AND STATE CALCULATING METHOD FOR BATTERY

A BMU (100), which is a battery management unit, includes a current measuring unit (10) that measures a current charged to and discharged from a battery (5); a voltage measuring unit (20) that measures a voltage of the battery (5) during measurement of the current by the current measuring unit (10);...

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Hauptverfasser: MURAO, Hiroya, TANAKA, Yasuharu, NAGATA, Ryuji
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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creator MURAO, Hiroya
TANAKA, Yasuharu
NAGATA, Ryuji
description A BMU (100), which is a battery management unit, includes a current measuring unit (10) that measures a current charged to and discharged from a battery (5); a voltage measuring unit (20) that measures a voltage of the battery (5) during measurement of the current by the current measuring unit (10); a BPF processing unit (30) that extracts a component in a prescribed frequency band, of the current measured by the current measuring unit (10); a BPF processing unit (40) that extracts a component in the prescribed frequency band, of the voltage measured by the voltage measuring unit (20); and an impedance calculating unit (50) that calculates an impedance of the battery (5) using the extracted current component and voltage component.
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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title STATE CALCULATING APPARATUS AND STATE CALCULATING METHOD FOR BATTERY
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