EP 2656474 A2 20131030 - METHOD AND DEVICE FOR CHARGING A LOW-VOLTAGE BATTERY IN AN ELECTRIC DRIVE SYSTEM
Title (en)
METHOD AND DEVICE FOR CHARGING A LOW-VOLTAGE BATTERY IN AN ELECTRIC DRIVE SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUM LADEN EINER NIEDERVOLTBATTERIE IN EINEM ELEKTRISCHEN ANTRIEBSSYSTEM
Title (fr)
PROCÉDÉ ET DISPOSITIF DE CHARGEMENT D'UNE BATTERIE BASSE TENSION DANS UN SYSTÈME D'ENTRAÎNEMENT ÉLECTRIQUE
Publication
Application
Priority
- DE 102010055790 A 20101223
- DE 102011012316 A 20110225
- EP 2011006137 W 20111207
Abstract (en)
[origin: WO2012084131A2] The invention relates to a method and device (1) for charging a low-voltage battery (2) in an electric drive system, comprising at least one high-voltage battery (3), at least one low-voltage battery (2), at least one DC/DC converter (5, 11), units (6, 7) for determining the state of charge of the low-voltage battery (2) and of the high-voltage battery (3) and at least one control unit (8) for the DC/DC converter (5, 11), wherein the device has at least one connection (9) to an external voltage supply, wherein by means of the unit (6) the state of charge of the low-voltage battery (2) can be determined and can be compared with a threshold value and by means of the control unit (8) the connection (9) to the external voltage supply (10) can be checked, wherein depending upon the state of charge of the low-voltage battery (2) and the connection (9) to an external voltage supply (10) a charging path from the external voltage supply (10) via the DC/DC converter (5) to the low-voltage battery (2) can be activated by the control unit (8).
IPC 8 full level
H02J 7/00 (2006.01); B60L 11/18 (2006.01); H02J 7/14 (2006.01)
CPC (source: EP)
B60L 53/22 (2019.01); B60L 58/15 (2019.01); B60L 58/20 (2019.01); H02J 7/0013 (2013.01); H02J 7/1423 (2013.01); H02J 7/342 (2020.01); Y02T 10/70 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/92 (2013.01); Y02T 90/14 (2013.01)
Citation (search report)
See references of WO 2012084131A2
Citation (examination)
WO 2006112510 A1 20061026 - TOYOTA MOTOR CO LTD [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012084131 A2 20120628; WO 2012084131 A3 20130131; EP 2656474 A2 20131030
DOCDB simple family (application)
EP 2011006137 W 20111207; EP 11801595 A 20111207