A battery management system, a battery pack, an electric vehicle and a battery management method are provided. The battery management system according to the present disclosure includes a sensing unit for detecting voltage, current, and pressure of the battery cell, a memory for storing first relationship data representing the relationship between OCV and SOC and second relationship data representing the relationship between pressure and SOC, and a control unit for determining a voltage value representing the detected voltage, a current value representing the detected current, and a pressure value representing the detected pressure, and determining a SOC estimation value of the battery cell at each set time. The control unit compares a previous SOC estimation value having the plateau section, and determines a current SOC estimation value by executing at least one of (i) a first SOC estimation value based on the voltage value, the current value and the first relationship data, and (ii) a second SOC estimation value based on the pressure value and the second relationship data.
BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD
BATTERIEVERWALTUNGSSYSTEM, BATTERIEPACK, ELEKTROFAHRZEUG UND BATTERIEVERWALTUNGSVERFAHREN
SYSTÈME DE GESTION DE BATTERIE, BLOC-BATTERIE, VÉHICULE ÉLECTRIQUE ET PROCÉDÉ DE GESTION DE BATTERIE
2025-06-18
Patent
Electronic Resource
English
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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