EP 1820039 A1 20070822 - METHOD FOR ASSESSING THE STATE OF CHARGE OF AN ELECTRIC BATTERY
Title (en)
METHOD FOR ASSESSING THE STATE OF CHARGE OF AN ELECTRIC BATTERY
Title (de)
VERFAHREN ZUR BEWERTUNG DES LADUNGSZUSTANDS EINER ELEKTRISCHEN BATTERIE
Title (fr)
PROCEDE D'EVALUATION DE L'ETAT DE CHARGE D'UNE BATTERIE ELECTRIQUE
Publication
Application
Priority
FR 2004050630 W 20041130
Abstract (en)
[origin: WO2006058970A1] The invention concerns a method for assessing the state of charge (SOC) of an electric battery. Typically, it consists in calculating (20) a coulometric state of charge (SOC<SUB>c</SUB>) obtained by temporal integration of the intensity (I) of the battery charge and discharge current. The method is characterized in that it consists in calculating (25), during the battery discharge phases, a theoretical state of charge (SOC<SUB>t</SUB>) determined based on the voltage (U) at the battery terminals, the intensity (I) of the discharge current, the temperature (?) of the battery and its nominal capacity (Q). This theoretical state of charge can be used to reset the coulometric state of charge (SOC<SUB>c</SUB>).
IPC 8 full level
G01R 31/36 (2006.01)
CPC (source: EP)
G01R 31/367 (2018.12); G01R 31/3832 (2018.12)
Citation (search report)
See references of WO 2006058970A1
Citation (examination)
- US 5321627 A 19940614 - REHER MICHAEL T [US]
- US 6359419 B1 20020319 - VERBRUGGE MARK WILLIAM [US], et al
- US 2002113595 A1 20020822 - SAKAI SHOJI [JP], et al
- EP 1308738 A2 20030507 - NBT GMBH [DE]
- DE 19918529 A1 20001123 - INST SOLARE ENERGIEVERSORGUNGSTECHNIK ISET [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
FR 2004050630 W 20041130; EP 04805868 A 20041130