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1. (WO2013159992) MULTI-SPEED GEARBOX

Pub. No.:    WO/2013/159992    International Application No.:    PCT/EP2013/055061
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Thu Mar 14 00:59:59 CET 2013
IPC: F16H 3/66
Applicants: ZF FRIEDRICHSHAFEN AG
Inventors: BECK, Stefan
SIBLA, Christian
RIEGER, Wolfgang
Title: MULTI-SPEED GEARBOX
Abstract:
The invention relates a four-speed multi-speed gearbox in which a planet carrier (12) of a first planetary gear set (1) and a ring gear (43) of a fourth planetary gear set (4) can be coupled to a housing (72) by means of a first brake (51) or to the drive shaft (70) by means of a first clutch (61), a sun gear (11) of the first planetary gear set (1) can be coupled to the housing (72) by means of a second brake (52), a ring gear (13) of a first planetary gear set (1) and a sun gear (21) of a second planetary gear set (2) can be coupled to the drive shaft (70) by means of a second clutch (62), the drive shaft (70) can be coupled to a ring gear (23) of the second planetary gear set (2) by means of a third clutch (63), a planet carrier (22) of the second planetary gear set (2) is permanently connected to the planet carrier (42) of the fourth planetary gear set (4) and a planet carrier (32) of the third planetary gear set (3) and a sun gear (41) of the fourth planetary gear set (4) are permanently connected to the drive shaft (70). By varying other clutches within the multi-speed gearbox, a set of gearboxes which have similar characteristics are provided.