Zf Friedrichshafen Ag

Zp Friedrichshafen Ag

Bernd Knöpke

Stefan Beck

Johannes Kaltenbach

Michael Wechs

Uwe Griesmeier

Matthias Horn

Jens Moraw

Viktor Warth

Peter Ziemer

Martin Brehmer

Gerhard Niederbrucker

Raffael Kuberczyk

Juri Pawlakowitsch

Stephan Scharr

Eckehard Münch

Julian King

A transmission (G) for a motor vehicle includes an input shaft (GW), an output shaft (GW), three planetary gear sets (PPP), as well as four shift elements (BKKK). By selective engagement of the four shift elements (BKKK) in pairs, six forward gears (-) are shiftable between the input shaft (GW) and the output shaft (GW).

Gear mechanism for a motor vehicle, and drive train for a motor vehicle comprising such a gear mechanism

A transmission (G) for a motor vehicle comprising an upstream gear set (VRS), a main gear set (HRS) with a total of four shafts (W, W, W, W) referred to in order of rotational speeds as first, second, third and fourth shafts, an electric machine (EM), and at least five shift elements (A, B, C, E, F), the selective pairwise closure of which realizes at least eight selectable forward gear ratios (G-G) between a drive shaft (GW) and an output shaft (GW) of the transmission (G). The upstream gear set (VRS) provides a rotational speed at a fifth shaft (W) increased relative to the rotational speed of the drive shaft (GW), in a fixed transmission ratio with respect to the drive shaft (GW). The main gear set (HRS) is a stepped planetary gear set (PS).

Gearing for a motor vehicle, and hybrid drive train with same

The invention relates to a transmission (G) for a motor vehicle, wherein the transmission (G) comprises an input shaft (GW), an output shaft (GW), three planetary gear sets (P, P, P), as well as at least five shift elements (B, K, K, K, K), wherein, by means of selective engagement of the at least five shift elements (B, K, K, K, K), seven forward gears (to) can be selected between the input shaft (GW) and the output shaft (GW), and a drive train for a motor vehicle comprising such a transmission (G).

Transmission for a motor vehicle

A transmission (G) for a motor vehicle includes an input shaft (GW), an output shaft (GW), three planetary gear sets (P, P, P), and four shift elements (B, K, K, K). By selective engagement of the four shift elements (B, K, K, K) in pairs, six forward gears (-) are shiftable between the input shaft (GW) and the output shaft (GW).

A transmission (G) for a motor vehicle includes a drive shaft (GW), an output shaft (GW), a first and a second planetary gear set (P, P), and a first, second, third, fourth and fifth shift element (). Six forward gear ratios (-) between the drive shaft (GW) and the output shaft (GW) are engagable through selective pairwise closure of the five shift elements () and rotationally fixed immobilization of the sun gear (E) of the first planetary gear set (P).

A transmission system () including a transmission input shaft (), a transmission output shaft (), and three planetary gear sets (P, P, P) having a total of seven interface shafts (W-W). The planetary gear sets (P, P, P) are at least partially functionally connected to each other by planetary gear set shafts (S-HR), are at least partially connectable to each other through a plurality of shift elements (B, B, K-K; B-B, K-K), and are coupled to the seven interface shafts (W-W) by the planetary gear set shafts (S-HR) such that at least six gear ratios (VM-VM, RVM, RVM) are selectable such that the transmission input shaft () and the transmission output shaft () revolve with the same or different direction of rotation.

Transmission device having a transmission input shaft, having a transmission output shaft and having three planetary gear sets

A transmission (G) for a motor vehicle including an input shaft (GW), an output shaft (GW), three planetary gear sets (P, P, P) with three elements each, and five shift elements (B, K, K, K, K). The third planetary gear set (P) has first and second couplings (V, V), wherein the first coupling (V) is between the first elements (E, E) of the second and third planetary gear sets (P, P), the second coupling (V) is between the third element (E) of the third planetary gear set (P) and the output shaft (GW), and the second element (E) of the third planetary gear set (P) is permanently connected to the input shaft (GW). One of the first and second couplings (V, V) is a permanently rotationally conjoint connection and the other one of the first and second couplings (V, V) is a connection selectable by the third shift element (K).

Transmission for a motor vehicle and hybrid drivetrain provided therewith

A transmission (G) for a motor vehicle includes three planetary gear sets (P, P, P), an electric motor (EM) and five shift elements (B, K, K, K, K). Selective engagement of the five shift elements (B, K, K, K, K) realizes at least eight selectable forward gear ratios (G-G) between an input shaft (GW) and an output shaft (GW) of the transmission (G).

Transmission for a motor vehicle and hybrid drive train provided therewith

A planetary multi-stage transmission for a vehicle is provided. A drive (An) is connectable by a zeroth shift element (K) to a first shaft (). A first element of a first planetary gear set (RS) is connected to a housing (). A first shaft () is permanently connected to a second element of the first planetary gear set (RS). A rotor () of an electric motor (EM) is connected to a third element of the first planetary gear set (RS), and the third element of the first planetary gear set (RS) is connectable by one or more of a plurality of additional shift elements to at least one element of one or more of a second and third planetary gear sets (RS, RS).

Growing community of inventors

Salem, Germany

Bernd Knöpke