Abstract: The 8-gear transmission comprises an input shaft (AN), an output shaft (AB), four planetary gearsets (RS1, RS2, RS3, RS4), eight rotary shafts (1, 2, 3, 4, 5, 6, 7, 8), and five shifting elements (A, B, C, D, E). A carrier (ST4) of the fourth gearset (RS4) and the input shaft (AN) are connected to each other as the first shaft (1). A carrier (ST4) of the fourth gearset (RS4) and the input shaft (AN) are connected to each other as the first shaft (1). A carrier (ST3) of the third gearset (RS3) and the output shaft (AB) are connected to each other as the second shaft (2). A sun gear (SO1) of the first gearset (RS1) and a sun gear (SO4) of the fourth gearset (RS4) are permanently connected to each other as the third shaft (3). A ring gear (HO1) of the first gearset (RS1) forms the fourth shaft (4). A carrier (ST2) of the second gearset (RS2) and a sun gear (SO3) of the third gearset (RS3) are connected to each other as the fifth shaft (5).

Abstract: A multi step transmission comprising gear sets, shafts and shift elements. The sun gear of set (P1) couples drive shaft (1). The carrier of set (P1) couples shaft (3) which couples, via brake (03), housing (G). Shaft (3) couples shaft (1), via clutch (13), and shaft (5) via clutch (35). Shaft (5) couples the ring and sun gears of sets (P2, P4) respectively, and shaft (8), which couples the sun gear of set (P3), via clutch (58). Shaft (1) couples shaft (7) which couples, via clutch (17), the carrier of set (P4). Shaft (6) couples the ring gear of set (P1) and the carrier of set (P2). The sun gear of set (P2) couples shaft (4) which couples, via brake (04), housing (G). The ring gear of set (P3) couples housing (G). Output shaft (2) couples the ring gear and carrier of sets (P4, P3) respectively.

Abstract: A multi step transmission with comprising gear sets (P1, P2, P3, P4), eight shafts and shift elements. The sun gear of set (P1) couples the drive shaft. The carrier of set (P1) couples shaft (3) which can couple the housing via brake (03), the drive shaft and shaft (5) via respective clutches. Shaft (5) couples the ring gear of set (P2), the sun gears of sets (P3, P4), and the drive shaft couples, via the clutch (17), shaft (7) connected to the carrier of set (P4). Shaft (6) couples the ring gear of set (P1) and the carrier of set (P2). Sun gear of set (P2) couples shaft (4), which couples housing via brake (04). Ring gear of set (P3) couples the housing. The output shaft couples the ring gear of set (P4) and, via clutch (28), shaft (8), which couples the carrier of set (P3).

Abstract: A multi step transmission comprises planetary gear sets (P1, P2, P3, P4), shafts, and shift elements. The sun gear of gearset (P1) couples drive shaft (1). The carrier of set (P1) couples shaft (3) which can couple housing (G) via brake (03), shaft (1) via clutch (13) and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) to the sun gears of the gearsets (P3, P4). Shaft (1) couples the carrier of gearset (P4). Shaft (6) couples the ring gear of gearset (P1) and, via clutch (68), shaft (8) which couples the carrier of gearset (P2). The sun gear of set (P2) couples housing (G). The ring gear of gearset (P3) couples shaft (4) that couples housing (G) via brake (04). Output shaft (2) couples the carrier of set (P3) and, via clutch (27), shaft (7) which couples the ring gear of gearset (P4).

Abstract: A multi step transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04). The carrier of gearset (P1) couples shaft (3) which couples housing (G) via brake (03), drive shaft (1) via clutch (13), and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) and, via clutch (58), shaft (8) which couples the sun gear of gearset (P4). Shaft (1) couples the sun gear of gearset (P2) and operatively couples the carrier of gearset (P3). Shaft (6) couples the ring gear of gearset (P1) and the carrier of gearset (P2), and operatively couples the sun gear of gearset (P3). The ring gear of set (P4) couples a housing (G) and drive shaft (2) couples the ring gear and the carrier of gearsets (P3, P4) respectively.

Abstract: A multi-stage transmission comprising planetary gear sets (P1, P2, P3, P4), shafts, and shift elements. The sun gear of gearset (P1) couples housing (G), the carrier of gearset (P1) couples shaft (3) which couples housing (G), via brake (03), and shaft (1) via clutch (13) and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) and the sun gears of gearsets (P3, P4). Shaft (1) couples the sun gear of gearset (P2) and the carrier of gearset (P3). Shaft (6) couples the carrier of gearset (P2) and the ring gear of gearset (P1), the ring gear of set (P4) couples shaft (4) which couples housing (G) via brake (04), and output shaft (2) couples the carrier of gearset (P4) and shaft (7), which couples, via clutch (27), the ring gear of gearset (P3).

Abstract: A multi step transmission comprises planetary gearsets (P1, P2, P3, P4), shafts, and shift elements. The sun gear of gearset (P1) couples shaft (4) which couples housing (G) via brake (04), the carrier of gearset (P1) couples shaft (3) which couples housing (G) via brake (03), the drive shaft via clutch (13), and shaft (5) via clutch (35). Shaft (5) couples the ring gear of gearset (P2) and the sun gear of gearset (P4). Shaft (1) couples the sun gear of gearset (P2) and operatively couples the carrier of gearset (P3). Shaft (6) couples the ring gear and carrier of gearsets (P1, P2) respectively, and operatively couples the sun gear of gearset (P3). The ring gear of gearset (P4) couples housing (G) and output shaft (2) couples the ring gear of gearset (P3), and detachably couples, via clutch (28), shaft (8) which couples the carrier of gearset (P4).

Abstract: A multi step transmission comprising planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The sun gear of set (P1) couples the drive shaft. The carrier of set (P1) couples housing (G), via shaft (3) and brake (03), the drive shaft via clutch (13), and shaft (5) via clutch (35). Shaft (5) couples the ring and sun gears of sets (P2, P4) respectively and, via clutch (58), couples shaft (8) which couples the sun gear of set (P3). The drive shaft couples the carrier of set (P4). Shaft (6) couples the ring gear of set (P1) and carrier of set (P2). The sun gear of set (P2) couples housing (G) via shaft (4) and brake (04). The ring gear of set (P3) couples housing (G). Output shaft couples the carrier of set (P3) and, via clutch (27), shaft (7) which couples the ring gear of set (P4).

Abstract: The multi step transmission comprising gear sets (P1, P2, P3, P4), eight shafts and six shift elements. The sun gear of set (P1) couples the drive shaft, the carrier of set (P1) couples shaft (3) which couples a housing via brake (03), the drive shaft via clutch (13) and shaft (5) via clutch (35). Shaft (5) couples the ring gear of set (P2), to the sun gears of sets (P3, P4), and the drive shaft couples, via clutch (18), shaft (8) that couples the carrier of set (P4). Shaft (6) couples the ring gear of set (P1) and, via clutch (67), shaft (7) that couples the carrier of set (P2). The sun gear of set (P2) couples the housing. The ring gear of set (P3) couples shaft (4) that couples the housing via brake (04). The output shaft couples the ring gear and carrier of sets (P4, P3) respectively.

Abstract: The transmission includes input and output shafts, gearsets (RS1, RS2, RS3, RS4), shafts (1, 2, 3, 4, 5, 6, 7, 8), and elements (A, B, C, D, E). A carrier of gearset (RS4) couples the input shaft forming shaft (1). A carrier of gearset (RS3) couples the output shaft forming shaft (2). Sun gears of gearsets (RS1, RS4) couple forming shaft (3). Ring gears of gearsets (RS1, RS2) respectively form shafts (4, 8). A carrier and sun gear respectively of gearsets (RS2, RS3) couple forming shaft (5). A carrier and ring gear respectively of gearsets (RS1, RS3) couple forming shaft (6). Sun and ring gears respectively of gearsets (RS2, RS4) couple forming shaft (7). In the power flow, elements (A, B) are respectively between (3, 4) and a housing, element (C) between (1, 5), element (D) between either (2, 8) or (6, 8), shifting element (E) between two of (5, 7, 8).

Abstract: The invention relates to a dual clutch gear mechanism with a countershaft design for a vehicle with central synchronisation, in which a braking device is provided for slowing down each partial gear mechanism and a band brake (1,2) is provided as a braking device.

Abstract: A power shift parallel shift transmission with parallel torque transmission branches, the input sides of which have an intermediate element which can be connected by an associated power shift element to a common input element, and the output sides of which can be connected by drive output elements with a common output element and can be connected to the appropriate intermediate element by a transmission ratio step that is engaged by an associated clutch. The transmission ratio steps are sequentially distributed in alternation in the order of their transmission ratios across the intermediate elements and in groups of adjacent transmission ratios across the drive output elements. To simply increase the number of gear steps in a space-saving manner, at least one of the drive output elements is in driving connection with the common output element via at least two alternatively shiftable output transmission ratio steps that have different transmission ratios.

Abstract: A double clutch winding transmission, having two sub-transmissions (T1, T2), coaxial transmission input shafts (1, 19), which are each coupled to a clutch (K1, K2), at least one counter shaft (2, 22) and a transmission output shaft (15) that is coaxially aligned with the transmission input shaft (1, 19). In at least one gear shift position, the flow of energy (L1 to L8) in the transmission winds through at least two meshing gear wheels (3 to 14), forming gear wheel levels (Z1 to Z6). The two sub-transmissions (T1, T2) are configured as two, consecutively positioned, single winding transmissions (W1, W2), each having at least four forward gear positions.

Abstract: A multi-stage transmission comprising planetary gearsets (P1, P2, P3, P4), shafts, and shift elements. Gearsets (P1, P2) form a front -mounted gear gearset and gearsets (P3, P4) form a main gearset. The carriers of gearsets (P1, P2) are coupled via shaft (4) which couples a main gearset element. The ring gear of gearset (P1) couples the sun gear of gearset (P2) via shaft (8) that couples drive shaft (1) via clutch (18). The sun gear of gearset (P1) couples housing (G) by shaft (3) via brake (03), and shaft (1) via clutch (13). The ring gear of gearset (P2) couples housing (G) by shaft (5) via brake (05). Shaft (7) couples main gearset element, and, via brake (07), housing (G). Shaft (6) couples another main gearset element and, via clutch (16), shaft (1). The output shaft couples a further main gearset element.

Abstract: A multi-stage transmission comprises planetary gearsets (P1, P2, P3, P4), shafts and shift elements. The carriers of gearsets (P1, P2) couple via shaft (4) which couples the sun gear of gearset (P3). The ring gear of the gearset (P1) couples the sun gear of gearset (P2) via shaft (8), which couples drive shaft (1) via clutch (18). The sun gear of gearset (P1) couples housing (G) by shaft (3) via brake (03), and shaft (1) via clutch (13). The ring gear of gearset (P2) couples housing (G) by shaft (5) via brake (05). The sun gear of gearset (P4) couples housing (G). Shaft (6) couples shaft (1) via clutch (16) and carrier of gearset (P3). Shaft (9) couples shaft (4) via clutch (49) and the ring gear of gearset (P4). Output shaft (2) couples the ring gear and the carrier respectively of gearsets (P3, P4).

Abstract: A transmission having input and output shafts, gearsets (RS1-RS4), shafts (1-8) and elements (A-E). Carriers of gearsets (RS4, RS3) are respectively connected to the input and the output forming shafts (1, 2). Sun gears of gearsets (RS1, RS4) are coupled forming shaft (3). The ring gear and a carrier respectively of gearsets (RS1, RS2) form shafts (4, 8). Ring gears of gearsets (RS2, RS4) respectively couple sun gears of gearsets (RS3, RS2) forming shafts (5, 7). A carrier of gearset (RS1) and a ring gear of gearset (RS3) are connected forming shaft (6). In the power flow, elements (A, B) are respectively arranged between shafts (3, 4) and a transmission housing, element (C) between shafts (5, 1), element (D) between shafts (8, 2) or (8, 6), and element (E) between two of shafts (5, 7, 8).

Abstract: A double clutch transmission with two clutches connected to a drive shaft and to one of two transmission input shafts. Fixed gears are coupled to the input shafts and engage idler gears. Several coupling devices connect the idler gears to a countershaft which have an output gear that couples to an output shaft such that forward and reverse gears can be shifted. Two dual gear planes each comprising two idler gears, each supported by a respective countershaft, and one fixed gear. In each dual gear plane, at least one idler gear wheel can be used for at least two gears. Two single gear planes each comprise an idler and a fixed gear such that a winding-path gear is shifted by disengaging an output gear wheel coupling device on the first countershaft. Another winding-path gear is shifted by disengaging an output gear wheel coupling device on the second countershaft.

Abstract: A transmission having gearsets (RS1-RS4), shafts (1-8) and shifting elements (A-E). A carrier of gearset (RS4) and an input shaft forming shaft (1), a carrier of gearset (RS3) and an output shaft form shaft (2), sun gears of gearsets (RS3, RS4) form shaft (3). A ring gear of gearset (RS1) forms shaft (4). Ring and sun gears respectively of gearsets (RS2, RS1) couple as shaft (5), a carrier of gearset (RS1) and a ring gear of gearset (RS3) form shaft (6), sun and ring gears respectively of gearsets (RS2, RS4) couple as shaft (7). A carrier of gearset (RS2) forms shaft (8). Located in the flow of power: elements (A, B) are respectively between shafts (3, 4) and a housing, element (C) between shafts (5, 1), element (D) between shafts (8, 2) or (8, 6) and element (E) between two of shafts (5, 7, 8).

Abstract: A double clutch transmission comprising two clutches each having an input side connected to a drive shaft and an output side connected to one of two transmission input shafts coaxially arranged with respect to one another. At least two countershafts, on which toothed idler gearwheels are pivotally supported and toothed fixed gearwheels are disposed on both transmission input shafts in a rotationally fixed manner and mesh with at least some of the idler gearwheels. A plurality of coupling devices connect an idler gearwheel to a countershaft in a rotationally fixed manner. One output gear is provided on both countershafts which is coupled to gearing of an output shaft. At least one first shift element connects two toothed gearwheels in a rotationally fixed manner such that a plurality of power shifting forward gears and at least one reverse gear can be shifted.

Abstract: A double clutch transmission comprising two clutches (K1, K2) with input sides connected to a drive shaft (w_an) and output sides respectively connected to one of two coaxially disposed transmission input shafts (w_k1, w_k2). At least two countershafts (w_v1, w_v2) are provided on which toothed idler gearwheels (7, 8, 9, 10, 11, 14, 15, 16, 18) are mounted. The toothed fixed gearwheels (1, 2, 3, 4, 5, 6) are disposed on the first and the second transmission input shafts (w_k1, w_k2). At least one shift element (M) is provided for connecting two toothed gearwheels in a rotationally fixed manner and several power shiftable forward gears (1, 2, 3, 4, 5, 6, 7, 8) and at least one reverse gear (R1, R2, R3) can be shifted. A maximum of six gear planes (7-1, 8-14, 9-15, 10-16, 11-5, 6-18) are provided so that at least one power shiftable winding path gear (G1, R2, O2) can be shifted by at least one shift element (M).