Battery self-heating control method, battery self-heating device, battery self-heating system and vehicle

Battery self-heating control method, battery self-heating device, battery self-heating system and vehicle

The invention relates to a battery self-heating control method, a battery self-heating device, a battery self-heating system and a vehicle, and the method comprises the steps: obtaining a temperature detection value and a charging and discharging current value of a battery cell at a time point throu...

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Hauptverfasser: XUE PENGHUI, LAO LIMING, SUN ZUGUANG, WANG LIANG, CHEN MINGWEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator XUE PENGHUI
LAO LIMING
SUN ZUGUANG
WANG LIANG
CHEN MINGWEN
description The invention relates to a battery self-heating control method, a battery self-heating device, a battery self-heating system and a vehicle, and the method comprises the steps: obtaining a temperature detection value and a charging and discharging current value of a battery cell at a time point through a temperature sensor and a current sensor at the time point after the battery self-heating process starts; determining a temperature estimation value of the battery cell at a target time point according to the charge-discharge current value, the rated capacity of the target battery and the internal resistance of the battery cell; and comparing the difference value of every two of the temperature target value, the temperature detection value and the temperature estimation value corresponding to the battery with a plurality of preset temperature thresholds to determine whether the temperature of the target battery is abnormal at the time point, and further to determine whether to stop the self-heating process of t
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Battery self-heating control method, battery self-heating device, battery self-heating system and vehicle
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