Volkswagen Ag

Christian Meissner

Hendrik Schröder

Jörg Möckel

Peter Tenberge

Rainer Petersen

Andreas Lutz

Armin Sue

Oliver Ludwig

A method for controlling an automatic hybrid transmission of the motor vehicle is disclosed, wherein the hybrid transmission has at least two engageable gear stages with different transmission ratios, and wherein at least one variable driving range, i.e., at least one specific dynamic powertrain path is engageable such that the entire output torque of the output shaft is formed from the respective drive torque of the internal combustion machine and the electric machine. Losses of comfort to the driver and/or the danger of component damage and the associated costs are reduced by checking during a stopping process, and/or during a deceleration process of the motor vehicle and a downshifting that is requested in this context whether there is a specific operating situation, and the variable driving range is engaged in the event that a specific operating situation exists.

Method for controlling an automatic hybrid transmission of a motor vehicle, in particular a DHT transmission, or respectively a hybrid transmission for a motor vehicle, in particular a DHT transmission, working according to the aforementioned method

The invention relates to a shifting device for the selection of rotationally fixed non-rotational couplings of a plurality of coaxial shafts of a motor-vehicle transmission, comprising a displacement sleeve, which can be axially displaced in relation to a housing and which has internal teeth having two axial toothed sections spaced apart from each other by an axial gap, and which coaxially surrounds a plurality of toothed elements that are arranged axially adjacent to each other and that are each non-rotationally connected to one of the shafts and that each have external teeth corresponding to the internal teeth of the displacement sleeve, wherein the displacement sleeve has a first sleeve part and a second sleeve part that are connected to each other in a manner that is axially fixed and rotationally decoupled, wherein the first sleeve part is a carrier of the first axial toothed section and the second sleeve part is a carrier of the second axial toothed section.

Shifting device and drive unit for a motor vehicle

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Braunschweig, Germany

Christian Meissner