A battery management system for an electrified vehicle configured to diagnose an abnormal behavior of a battery using a cell balancing function, and a method for diagnosing a battery thereof, are provided. The battery management system comprises a processor that is configured to monitor a battery. The processor is further configured to perform primary cell balancing, when a battery cell voltage deviation meets a cell balancing entry condition, determine whether an abnormal cell voltage deviation occurs after the primary cell balancing, and diagnose a progressive voltage drop using (N+1)th-order cell balancing, when it is determined that the abnormal cell voltage deviation occurs.
BATTERY MANAGEMENT SYSTEM FOR ELECTRIFIED VEHICLE AND METHOD FOR DIAGNOSING BATTERY THEREOF
2023-10-19
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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