Battery management apparatus

A battery management apparatus (1) includes a sensing unit (20), a calculation unit (36), and a determination unit (38). The sensing unit (20) detects temperature and current of at least one battery cell (C) of a plurality of battery cells in a battery (10). The calculation unit (36) calculates a fi...

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Hauptverfasser: AHN, GI-JANG, CHEONG, KYEONG-BEOM
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creator AHN, GI-JANG
CHEONG, KYEONG-BEOM
description A battery management apparatus (1) includes a sensing unit (20), a calculation unit (36), and a determination unit (38). The sensing unit (20) detects temperature and current of at least one battery cell (C) of a plurality of battery cells in a battery (10). The calculation unit (36) calculates a first degradation capacity (Qd) based on the detected temperature of the at least one battery cell at every unit time while the vehicle is being driven, and calculates a second degradation capacity (Qp) using the detected temperature and a state of charge (SOC) of the at least one battery cell (C) at every unit time while the vehicle is parked. The determination unit (38) determines a replacement time of the battery (10) by selecting one of the battery cells (C) which has a largest sum of the first and second degradation capacities (Qd, Qp), and then calculates a state of health (SOH) of the battery (10) depending on the first and second degradation capacities (Qd, Qp) of the selected one of the battery cells (C).
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language eng ; fre ; ger
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES
ELECTRICITY
ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PERFORMING OPERATIONS
PHYSICS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TESTING
TRANSPORTING
VEHICLES IN GENERAL
title Battery management apparatus
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