EP 1210533 A1 20020605 - MOTOR VEHICLE AUTOMATIC TRANSMISSION
Title (en)
MOTOR VEHICLE AUTOMATIC TRANSMISSION
Title (de)
AUTOMATISCHES SCHALTGETRIEBE EINES KRAFFAHRZEUGES
Title (fr)
TRANSMISSION AUTOMATIQUE D'UN VEHICULE AUTOMOBILE
Publication
Application
Priority
- FR 0002303 W 20000811
- FR 9910611 A 19990818
Abstract (en)
[origin: WO0113012A1] The invention concerns a transmission system wherein, when a torque to be transmitted by the transmission device exceeds the value transmissible by a direct drive clutch (18), on account of the application force defined by the centrifugal counter-weights (29), said clutch slips, the planet pinion carrier (13) coupled to the output shaft (2b) slows down, the planetary gear (9) slows down further and ends up being immobilised by a free wheel (16). This causes a reaction force of the teeth (PAC) in the ring (8), which is urged, via an axial stop (B2) to release the clutch (18) so as to eliminate therein all friction while the resulting reduction operates. Said axial motion of the ring (8) is enabled by a coupling device (17) which transmits the engine (5) torque while enabling the member (17a) bearing the ring (8) to slide relative to the input member (17b). The coupling device (17) is a frictionless device, for example operating by elastic material deformation. The invention is useful for enhancing smooth engagement of ratio shifts by eliminating in the axial motion frictions which increase with the transmitted torque, often non-linearly.
IPC 1-7
IPC 8 full level
F16H 3/44 (2006.01); F16C 3/035 (2006.01); F16D 3/06 (2006.01); F16H 3/54 (2006.01); F16H 61/02 (2006.01)
CPC (source: EP)
F16C 3/035 (2013.01); F16D 3/06 (2013.01); F16H 3/54 (2013.01); F16H 61/0295 (2013.01)
Citation (search report)
See references of WO 0113012A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2797666 A1 20010223; FR 2797666 B1 20011116; AR 025315 A1 20021120; AU 7011700 A 20010313; EA 200200218 A1 20020829; EP 1210533 A1 20020605; JP 2003507671 A 20030225; TW 470831 B 20020101; WO 0113012 A1 20010222
DOCDB simple family (application)
FR 9910611 A 19990818; AR P000104266 A 20000817; AU 7011700 A 20000811; EA 200200218 A 20000811; EP 00958669 A 20000811; FR 0002303 W 20000811; JP 2001517073 A 20000811; TW 89116414 A 20000815