EP 2978998 A1 20160203 - MULTI-STAGE PLANETARY GEAR MECHANISM
Title (en)
MULTI-STAGE PLANETARY GEAR MECHANISM
Title (de)
MEHRSTUFEN-PLANETENGETRIEBE
Title (fr)
TRAIN PLANÉTAIRE À PLUSIEURS ÉTAGES
Publication
Application
Priority
- DE 102013205377 A 20130327
- EP 2014053569 W 20140225
Abstract (en)
[origin: WO2014154411A1] A multi-stage planetary gear mechanism, in particular an automatic transmission for a motor vehicle, comprises a housing (3) having a housing longitudinal axis (2), a driveshaft (10) which can be connected to a drive train in order to transmit a drive torque from the drive train to the multi-stage planetary gear mechanism (1), an output shaft (11) which can be connected to an output train in order to transmit an output torque from the multi-stage planetary gear mechanism (1) to the output train, four individual planetary gear mechanisms (12, 13, 14, 15) which are arranged along the housing longitudinal axis (2) and which each have a sun gear (18, 22, 26, 30), a ring gear (19, 23, 27, 31) and at least one planetary gear (21, 25, 29, 33), each having a web (20, 24, 28, 32), six shifting elements which are arranged inside the housing (3) and which are embodied as four clutch elements (4, 5, 6, 7) and two brakes (8, 9), and connecting shafts (34, 35, 36, 37, 38, 39, 40, 41, 44) for connections between the individual planetary gear mechanisms (12, 13, 14, 15), the driveshaft (10), the output shaft (11), the clutch elements (4, 5, 6, 7) and/or the brakes (8, 9). The individual planetary gear mechanisms (12, 13, 14, 15) can be shifted by means of the shifting elements (4, 5, 6, 7, 8, 9) in such a way that various transmission ratios (i) act between the driveshaft (10) and the output shaft (11), with the result that the multi-stage planetary gear mechanism (1) has nine forward gears (G1, G2, G3, G4, G4a, G4b, G4c, G5, G6, G7, G8, G9) and one reverse gear (R), and the shifting elements (4, 5, 6, 7, 8, 9) are arranged so as to be easily accessible from outside the housing (3).
IPC 8 full level
F16H 3/66 (2006.01)
CPC (source: CN EP US)
F16H 3/66 (2013.01 - CN EP US); F16H 2003/445 (2013.01 - EP US); F16H 2200/0065 (2013.01 - EP US); F16H 2200/2012 (2013.01 - EP US); F16H 2200/2046 (2013.01 - EP US); F16H 2200/2097 (2013.01 - EP US)
Citation (search report)
See references of WO 2014154411A1
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
DOCDB simple family (publication)
DE 102013205377 A1 20141002; CN 105074276 A 20151118; CN 105074276 B 20170919; EP 2978998 A1 20160203; JP 2016514808 A 20160523; JP 6374946 B2 20180815; US 2016053865 A1 20160225; US 9856947 B2 20180102; WO 2014154411 A1 20141002
DOCDB simple family (application)
DE 102013205377 A 20130327; CN 201480017336 A 20140225; EP 14706053 A 20140225; EP 2014053569 W 20140225; JP 2016504526 A 20140225; US 201414780630 A 20140225