BATTERY SYSTEM AND VEHICLE

The battery system according to the embodiment accurately calculates the internal resistances of secondary battery cells, and includes a battery internal resistance calculator configured to: obtain open circuit voltages Vocv of the secondary battery cells; during charging of battery modules MDL11 to...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HAGIWARA, Keizo, SHIMIZU, Yosuke, KUWANO, Yuuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The battery system according to the embodiment accurately calculates the internal resistances of secondary battery cells, and includes a battery internal resistance calculator configured to: obtain open circuit voltages Vocv of the secondary battery cells; during charging of battery modules MDL11 to MDLnm, obtain closed circuit voltages Vccv of the secondary battery cells from the battery monitoring circuits CB11 to CBnm in a predetermined order, and then obtain closed circuit voltages of the secondary battery cells from the battery monitoring circuits CB11 to CBnm in a reverse order of the predetermined order; calculate an average value of the closed circuit voltages Vccv obtained for each of the secondary battery cells; and calculate the internal resistances of the secondary battery cells based on the open circuit voltages Vocv, a charging current value of the battery modules MDL1 to MDLnm obtained from a current sensor, and the average values of the closed circuit voltages Vccv.