Global Patent Index - EP 2165092 A2

EP 2165092 A2 20100324 - METHOD OF CONTROLLING AN AUTOMATIC GEARBOX

Title (en)

METHOD OF CONTROLLING AN AUTOMATIC GEARBOX

Title (de)

VERFAHREN ZUR STEUERUNG EINES AUTOMATIKGETRIEBES

Title (fr)

PROCEDE DE PILOTAGE D'UNE BOITE DE VITESSES AUTOMATIQUE

Publication

EP 2165092 A2 (FR)

Application

EP 08806124 A

Priority

  • FR 2008051197 W
  • FR 0756563 A

Abstract (en)

[origin: WO2009019352A2] The invention relates to a control method for uncoupling the primary shaft (1) and the output member (14) of an automatic gearbox. The gearbox comprises an epicyclic gear train (4) including an external sun gear (6) secured to the input shaft (1) and a fixed internal sun gear (5), and also a satellite carrier (7) carrying a satellite (8) meshing with these sun gears (5, 6). It comprises a second epicyclic gear train (9) including an external sun gear (14), a small and a large internal sun gear (16, 17) and a double satellite carrier (11). The first satellite (12) meshes with the small internal sun gear (16) and with the second satellite (13) which meshes with the large internal sun gear (17) and with the external sun gear (14). When the vehicle is stationary, the actuators are controlled to uncouple the input shaft (1) from the output member (14) and to rotationally immobilize the output member (14). The invention applies to controlling such a gearbox when the vehicle is stopped.

IPC 8 full level

F16H 3/66 (2006.01); F16H 61/20 (2006.01)

CPC (source: EP)

F16H 3/663 (2013.01); F16H 61/20 (2013.01); F16H 2061/205 (2013.01); F16H 2061/207 (2013.01); F16H 2200/0052 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2023 (2013.01); F16H 2200/2043 (2013.01); F16H 2200/2097 (2013.01)

Citation (search report)

See references of WO 2009019352A2

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 MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

FR 2919036 A1 20090123; FR 2919036 B1 20091120; EP 2165092 A2 20100324; WO 2009019352 A2 20090212; WO 2009019352 A3 20090402

DOCDB simple family (application)

FR 0756563 A 20070718; EP 08806124 A 20080630; FR 2008051197 W 20080630