US 9,810,299 B2
Multi-stage power-shift transmission
Stefan Beck, Eriskirch (DE)
Assigned to Friedrichshafen AG, Friedrichshafen (DE)
Appl. No. 14/396,090
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
PCT Filed Mar. 13, 2013, PCT No. PCT/EP2013/055065
§ 371(c)(1), (2) Date Oct. 22, 2014,
PCT Pub. No. WO2013/159995, PCT Pub. Date Oct. 31, 2013.
Claims priority of application No. 10 2012 207 028 (DE), filed on Apr. 27, 2012.
Prior Publication US 2015/0087469 A1, Mar. 26, 2015
Int. Cl. F16H 3/66 (2006.01); F16H 37/04 (2006.01); B60K 6/48 (2007.10); F16H 3/44 (2006.01)
CPC F16H 37/042 (2013.01) [B60K 6/48 (2013.01); F16H 3/66 (2013.01); F16H 2003/445 (2013.01); F16H 2200/0008 (2013.01); F16H 2200/0065 (2013.01); F16H 2200/0082 (2013.01); F16H 2200/201 (2013.01); F16H 2200/2046 (2013.01); Y02T 10/6221 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A power shiftable multi-stage transmission (120), of a planetary design, being disposed between an input drive shaft (AN) and an output shaft (AB) for a vehicle (100), the multi-stage transmission comprising:
two parallel shaft trains (WS1, WS2),
first, second, third, fourth, fifth and sixth shift elements (K1, K2, K3, K4, B1, B2), wherein the first, the second, the third, and the fourth shift elements (K1, K2, K3, K4) are clutches and the fifth and the sixth shift elements are brakes (B1,B2),
at least first and second spur gear stages (STS1, STS2),
first, second and third planetary gear sets (PS1, PS2, PS3), and each of the first, the second and the third planetary gear sets (PS1, PS2, PS3) comprising a sun gear (SO1, SO2, SO3), a ring gear (HO1, HO2, HO3) and a planet carrier (ST1, ST2, ST3) having multiple planetary gears,
the two shaft trains (WS1, WS2) being connectable with one another via the at least first and the second spur gear stages (STS1, STS2), and
different transmission ratios, between the input drive shaft (AN) and the output shaft (AB), being achieved by selective engagement of at least three of the first, the second, the third, the fourth, the fifth and the sixth shift elements (K1, K2, K3, K4, B1, B2) such that at least nine forward gears and at least one reverse gear can be implemented.