Schaeffler Technologies Ag & Co .kg

Sebastian Köpfler

Reinhard Stehr

Bernhard Walter

Marco Grethel

Markus Ciesek

Matthias Finsterbusch

A hybrid powertrain includes an output shaft, a combustion power section for providing a first torque, an electric power section for providing a second torque, and an output transmission for transmitting the first torque between the combustion power section and the output shaft and transmitting the second torque between the electric power section and the output shaft. The combustion power section includes an internal combustion engine with a combustion shaft for outputting the first torque, a generator with a generator shaft for converting the first torque into electric energy, and a variable belt transmission for variably translating the first torque. The belt transmission includes a combustion-side cone pulley pair with a first axially movable pulley arranged on a generator shaft side, an output-side cone pulley pair with a second axially movable pulley, and a belt for variably torque-transmittingly connecting the combustion-side cone pulley pair to the output-side cone pulley pair.

Hybrid powertrain and assembly method for a hybrid powertrain

A fluid system for a continuously variable transmission includes a first pump, a first actuation unit, a first line section, a second actuation unit, and a second line section. The first pump has a first sub-pump and a second sub-pump. The first actuation unit is assigned to a first disc set of the continuously variable transmission and the second actuation unit is assigned to a second disc set of the continuously variable transmission. The first line section fluidically connects the first pump to the first actuation unit and the second line section fluidically connects the first pump to the second actuation unit. The second sub-pump has a first connection that can be selectively fluidically connected to the first actuation unit via the first line section, or the second sub-pump has a second connection that can be selectively fluidically connected to the second actuation unit via the second line section.

Fluid system for a continuously variable transmission

A hydraulic system () for electro-hydraulically pressing and/or moving a first () and a second () set of disks of a CVT transmission () is provided. The hydraulic system () includes two electrically driven hydraulic pumps (). In order to reduce energy consumption during operation of the hydraulic system, the hydraulic pumps () are in the form of self-inhibiting hydraulic pumps () which, when a hydraulic pressure is applied and the associated electric drive is switched off, substantially maintain the applied hydraulic pressure as a result of a static friction and a residual moment of the associated electric drive.

Hydraulic system

The invention relates to a transmission for a drive train of a motor vehicle, having a shaft section, to which a torque measurement device, designed to measure a torque applied to the shaft section is attached, wherein an electronics unit connected to the torque measurement device is received radially within the shaft section. The invention further relates to a drive train for a motor vehicle, having a transmission.

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Bühl, Germany

Sebastian Köpfler