BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD

A battery management system according to the present disclosure includes a memory to store a first Open Circuit Voltage (OCV) curve and a second OCV curve, a voltage sensor to measure a battery voltage which is a voltage across a battery, and a control circuit. The first OCV curve defines a first re...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	LEE, Bom-Jin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A battery management system according to the present disclosure includes a memory to store a first Open Circuit Voltage (OCV) curve and a second OCV curve, a voltage sensor to measure a battery voltage which is a voltage across a battery, and a control circuit. The first OCV curve defines a first relationship between OCV and State Of Charge (SOC) of the battery during discharge of the battery. The second OCV curve defines a second relationship OCV and SOC of the battery during charge of the battery. The control circuit is configured to interrupt a flow of current through the battery so that the battery is in a rest state when the control circuit receives a key-off signal. The control circuit estimates a SOC of the battery at a predetermined time interval from a first time point to a second time point based on the battery voltage measured at the predetermined time interval and the first OCV curve in case that the battery is being discharged when the key-off signal is received.