Global Patent Index - EP 1391023 A2

EP 1391023 A2 20040225 - METHOD AND DEVICE FOR DETERMINING THE STARTING CAPABILITY OF A VEHICLE

Title (en)

METHOD AND DEVICE FOR DETERMINING THE STARTING CAPABILITY OF A VEHICLE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG DER STARTFÄHIGKEIT EINES FAHRZEUGS

Title (fr)

PROCEDE ET DISPOSITIF PERMETTANT DE DETERMINER LA CAPACITE DE DEMARRAGE D'UN VEHICULE

Publication

EP 1391023 A2 20040225 (DE)

Application

EP 02716823 A 20020305

Priority

  • DE 10125819 A 20010526
  • EP 0202369 W 20020305

Abstract (en)

[origin: WO02096717A2] The object of the invention is to provide an especially simple and safe method for recognizing the operativeness of a battery, especially of a vehicle battery. To this end, the invention provides a method for determining the starting capability of a vehicle which is characterized in that current values and voltage values of the battery are detected during a predetermined time window, especially while the vehicle is started. The current values and voltage values are used to determine an internal resistance of the battery by means of linear regression. Based on the maximum value for the current and the minimum value for the voltage determined during said predetermined time window a reference resistance value is determined for the starting capability of the vehicle and a value representing the starting capability is determined on the basis of a comparison of the internal resistance with the reference resistance.

IPC 1-7

H02J 7/14

IPC 8 full level

G01R 31/36 (2006.01); B60R 16/04 (2006.01); F02N 11/10 (2006.01); H02J 7/00 (2006.01); B60R 16/02 (2006.01); B60R 16/03 (2006.01)

CPC (source: EP US)

F02N 11/10 (2013.01 - EP US); H02J 7/0047 (2013.01 - EP US); H02J 7/0048 (2020.01 - EP US); B60R 16/0315 (2013.01 - EP US); H02J 2310/46 (2020.01 - EP US)

Citation (search report)

See references of WO 02096717A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02096717 A2 20021205; WO 02096717 A3 20030327; DE 10125819 A1 20021128; DE 10125819 B4 20130606; EP 1391023 A2 20040225; JP 2004526978 A 20040902; JP 3887820 B2 20070228; US 2004239332 A1 20041202; US 7026787 B2 20060411

DOCDB simple family (application)

EP 0202369 W 20020305; DE 10125819 A 20010526; EP 02716823 A 20020305; JP 2002593205 A 20020305; US 47899304 A 20040721