Global Patent Index - EP 2300295 A1

EP 2300295 A1 20110330 - METHOD FOR OPERATING A DRIVE TRAIN

Title (en)

METHOD FOR OPERATING A DRIVE TRAIN

Title (de)

VERFAHREN ZUM BETREIBEN EINES ANTRIEBSSTRANGS

Title (fr)

PROCÉDÉ POUR FAIRE FONCTIONNER UNE CHAÎNE CINÉMATIQUE

Publication

EP 2300295 A1 20110330 (DE)

Application

EP 09780719 A 20090716

Priority

  • EP 2009059164 W 20090716
  • DE 102008040661 A 20080724

Abstract (en)

[origin: WO2010010038A1] The invention relates to a method for operating a drive train of a motor vehicle. During the tow-start of the internal combustion engine (2) using the electric motor (3), the clutch (4) connected between the non-spark-ignited internal combustion engine (2) and the electric motor (3) providing a constant electric motor torque is closed in a slipping manner in such a way that over time the clutch torque transferred by the clutch is linearly increased starting from a first starting value MK,A1 to a first final value MK,E1, wherein if the non-spark-ignited internal combustion engine begins to rotate, the breakaway torque MK,LOS of the internal combustion engine is determined from the clutch torque at which the non-spark-ignited internal combustion engine begins to rotate, and wherein if the non-spark-ignited internal combustion engine does not begin to rotate, the clutch (4) connected between the non-spark-ignited internal combustion engine and the electric motor is closed in a slipping manner in such a way that that over time the clutch torque transferred by the clutch is linearly increased starting from a second starting value MK,A2 until the non-spark-ignited internal combustion engine begins to rotate, wherein the breakaway torque MK,LOS of the internal combustion engine is determined from the clutch torque at which the internal combustion engine begins to rotate.

IPC 8 full level

B60W 10/02 (2006.01); B60K 6/48 (2007.10); B60W 10/06 (2006.01); F02N 15/08 (2006.01)

CPC (source: EP US)

B60K 6/387 (2013.01 - EP US); B60K 6/48 (2013.01 - EP US); B60W 10/02 (2013.01 - EP US); B60W 10/04 (2013.01 - US); B60W 10/06 (2013.01 - EP US); B60W 10/08 (2013.01 - EP US); B60W 20/00 (2013.01 - EP US); B60W 30/18027 (2013.01 - EP); F02N 15/08 (2013.01 - EP US); B60K 2006/268 (2013.01 - EP); B60L 2240/423 (2013.01 - EP US); B60W 2510/02 (2013.01 - US); B60W 2710/027 (2013.01 - EP US); B60W 2710/083 (2013.01 - EP US); Y02T 10/62 (2013.01 - EP US); Y02T 10/64 (2013.01 - EP US)

Designated contracting state (EPC)

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 SE SI SK SM TR

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

WO 2010010038 A1 20100128; DE 102008040661 A1 20100204; DE 102008040661 B4 20240208; EP 2300295 A1 20110330; US 2011120790 A1 20110526

DOCDB simple family (application)

EP 2009059164 W 20090716; DE 102008040661 A 20080724; EP 09780719 A 20090716; US 200913055282 A 20090716