EP 2804795 A1 20141126 - METHOD FOR OPERATING A VEHICLE DRIVE TRAIN
Title (en)
METHOD FOR OPERATING A VEHICLE DRIVE TRAIN
Title (de)
VERFAHREN ZUM BETREIBEN EINES FAHRZEUGANTRIEBSSTRANGES
Title (fr)
PROCÉDÉ PERMETTANT DE FAIRE FONCTIONNER UNE CHAÎNE CINÉMATIQUE DE VÉHICULE
Publication
Application
Priority
- DE 102012200537 A 20120116
- EP 2012074395 W 20121205
Abstract (en)
[origin: WO2013107558A1] The invention relates to a method for operating a vehicle drive train (1) having a drive machine (2), a transmission device (3), and a main drive pinion (4). In the region of the transmission device (3), at least one shift element (K1, K2, KV, KR) is provided, the transmission capacity of which can be varied in an at least partially stepless manner to represent an operating state of the transmission device (3). During overrun mode of the vehicle drive train (1), a torque present at the main drive pinion (4) can be supported at least partially in the region of the drive machine (2) by means of the transmission device (3). According to the invention, during overrun mode of the vehicle drive train (1), the transmission capacity of one of the shift elements (K1, K2, KV and/or KR) of the transmission device (3), which is substantially at least approximately equal to zero to represent the current operating state of the transmission device (3), is set to a value at which at least some of the torque present at the main drive pinion (4) can be supported in the region of the transmission device (3) and the speed of the drive machine (2) has values below a predefined limit value.
IPC 8 full level
B60W 30/18 (2012.01); F16H 47/04 (2006.01); F16H 59/18 (2006.01); F16H 59/36 (2006.01); F16H 59/42 (2006.01); F16H 61/00 (2006.01); F16H 61/04 (2006.01)
CPC (source: CN EP US)
B60W 30/18027 (2013.01 - CN); B60W 30/18072 (2013.01 - EP US); B60W 30/18136 (2013.01 - CN EP US); B60W 30/1884 (2013.01 - EP); F16H 59/42 (2013.01 - US); F16H 61/0059 (2013.01 - CN EP US); F16H 61/04 (2013.01 - US); F16H 61/21 (2013.01 - CN EP US); F16H 2003/0935 (2013.01 - CN EP US); F16H 2059/366 (2013.01 - CN EP US); F16H 2061/0496 (2013.01 - CN EP US)
Citation (search report)
See references of WO 2013107558A1
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)
DE 102012200537 A1 20130718; CN 104053585 A 20140917; CN 104053585 B 20160907; EP 2804795 A1 20141126; US 2014315685 A1 20141023; US 9470307 B2 20161018; WO 2013107558 A1 20130725
DOCDB simple family (application)
DE 102012200537 A 20120116; CN 201280067154 A 20121205; EP 12810135 A 20121205; EP 2012074395 W 20121205; US 201214358357 A 20121205