EP 4127522 A1 20230208 - METHOD FOR DIAGNOSING OIL WEAR OF AN AUTOMATIC TRANSMISSION TORQUE CONVERTER OF A MOTOR VEHICLE
Title (en)
METHOD FOR DIAGNOSING OIL WEAR OF AN AUTOMATIC TRANSMISSION TORQUE CONVERTER OF A MOTOR VEHICLE
Title (de)
VERFAHREN ZUR DIAGNOSE DES ÖLVERSCHLEISSES EINES AUTOMATIKGETRIEBE-DREHMOMENTWANDLERS EINES KRAFTFAHRZEUGS
Title (fr)
PROCÉDÉ DE DIAGNOSTIC D'UNE USURE D'HUILE D'UN CONVERTISSEUR DE COUPLE DE BOÎTE DE VITESSES AUTOMATIQUE D'UN VÉHICULE AUTOMOBILE
Publication
Application
Priority
- FR 2002875 A 20200324
- EP 2021056992 W 20210318
Abstract (en)
[origin: WO2021191050A1] The invention relates to a method for diagnosing oil (8) wear of a torque converter (1) of an automatic transmission of a motor vehicle, involving comparing the speeds (ωM; ωT) of the engine (2) and the turbine (7) of the torque converter (1) when the torque converter (1) of the vehicle is bridged.
IPC 8 full level
F16H 41/30 (2006.01); F16H 45/02 (2006.01); F16H 57/04 (2006.01); F16H 61/12 (2006.01); F16H 61/14 (2006.01)
CPC (source: EP)
F16H 57/0405 (2013.01); F16H 41/30 (2013.01); F16H 45/02 (2013.01); F16H 59/72 (2013.01); F16H 2059/147 (2013.01); F16H 2059/366 (2013.01); F16H 2059/385 (2013.01)
Citation (search report)
See references of WO 2021191050A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021191050 A1 20210930; BR 112022019314 A2 20221116; CN 115485491 A 20221216; EP 4127522 A1 20230208; FR 3108700 A1 20211001; FR 3108700 B1 20220225
DOCDB simple family (application)
EP 2021056992 W 20210318; BR 112022019314 A 20210318; CN 202180030242 A 20210318; EP 21712511 A 20210318; FR 2002875 A 20200324