Zf Friedrichshafen Ag

Jurgen Wafzig

Matthias Reisch

Mark Andy Mohr

Walter Kuhn

Martin Grumbach

Hans-Jorg Domian

A transmission configuration for a vehicle with at least a wet clutch () functioning as starting element. A coolant and a lubricant supply is provided via at least a pump device () which can be driven by a drive motor () of the vehicle. The pump device () can be driven in such a way that the conveyed flow volume of the pump device () is proportional to the rotational speed difference between the rotational speed of the drive motor () and the rotational speed of the clutch () which is designed and functions as the starting element.

Transmission arrangement for a vehicle

Toroidal drive

The continuously variable toroidal drive has one input shaft and two input disks situated co-axially thereto with toroidal inner surfaces wherein the input disks and the output disks form pairs of disks disposed with mirror symmetry relative to each other and side by side. The input shaft is surrounded by a coaxial hollow shaft upon which are rotatably supported the two output disks and a first input disk; the second input disk being non-rotatably connected with the hollow shaft. The hollow shaft has a cam flange which together with the first disk is pressed apart by a roller-shaped pressure device, the pressure device being held by a substantially U-shaped supporting structure which is connected with the input shaft, wherein drive pressure is applied without relative rotation between the input disks.

Continuously variable toroidal drive

The method for changing the gears of a manually shiftable change gear unit for commercial vehicles which has a main gear unit and fitted downstream thereof a combination of splitter gear unit and range gear unit wherein when shifting the individual gear units from the coupling position (1) to the neutral position (0), in time are first shifted the main gear unit, then the splitter gear unit and finally the range gear unit and conversely, when shifting form the neutral position (0) to the coupling position (1), in time first the range gear unit, then the splitter gear unit and finally the main gear unit are shifted.

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Eriskirch, Germany

Jurgen Wafzig