Global Patent Index - EP 1747476 A1

EP 1747476 A1 20070131 - BATTERY STATE RECOGNITION

Title (en)

BATTERY STATE RECOGNITION

Title (de)

BATTERIEZUSTANDSERKENNUNG

Title (fr)

RECONNAISSANCE DE L'ETAT DE BATTERIES

Publication

EP 1747476 A1 20070131 (DE)

Application

EP 05749969 A 20050513

Priority

  • EP 2005052202 W 20050513
  • DE 102004023543 A 20040513
  • DE 102005020835 A 20050504

Abstract (en)

[origin: WO2005111643A1] A battery state recognition system is disclosed, of application in connection with a series circuit of several battery cells, in particular, a series circuit of at least two lead batteries in a vehicle electrical system, with an increased voltage relative to conventional vehicle electrical system voltages. The battery state recognition is for recognition of a fault in one battery as well as a fault in the entire system and sends corresponding signals to a superior energy management system and, optionally, triggers a display. Additional means permit a charge equilibration in the batteries by specific recharging or specific discharging in the case of unevenly charged batteries.

IPC 8 full level

G01R 31/36 (2006.01)

CPC (source: EP US)

G01R 31/396 (2018.12 - EP US); H02J 7/0016 (2013.01 - EP US); Y02T 10/70 (2013.01 - EP US)

Citation (search report)

See references of WO 2005111643A1

Citation (examination)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 2005111643 A1 20051124; DE 102005020835 A1 20060309; EP 1747476 A1 20070131; JP 2007537433 A 20071220; US 2008233471 A1 20080925

DOCDB simple family (application)

EP 2005052202 W 20050513; DE 102005020835 A 20050504; EP 05749969 A 20050513; JP 2007512220 A 20050513; US 57989305 A 20050513