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AssigneeDaimler AG
InventorsManfred Guggolz, Juergen Hertlein, Werner Hillenbrand, Steffen Keppeler, Markus Stein, David Ulmer
Estimating the term…
A motor vehicle drive train device includes a multi-group transmission with a main group providing at least one forward transmission gear and at least one reverse transmission gear, and a downstream group downstream from the main group. The device also includes a control and/or regulation unit having a gear change function for shifting the main group at least in one transmission gear change operation in order to engage a transmission gear opposite to the current direction of travel. The control and/or regulation unit has a synchronization function which is provided for shifting the downstream group in order to engage the transmission gear opposite to the current direction of travel.
1-9. (canceled)
A motor vehicle drive train device, comprising:
A method for engaging a transmission gear opposite a current direction of travel in a multi-group transmission of a motor vehicle drive train device comprising a multi-group transmission, which includes a main group configured to provide at least one forward transmission gear and at least one reverse transmission gear, and a downstream group downstream from the main group and a control/regulation unit having a gear change function configured to shift the main group from a forward transmission gear into a reverse transmission gear at least in one transmission gear change operation to engage a first transmission gear opposite to the current direction of travel, the method comprising:
Dependencies are inferred from the claim text.