Transmission for an electric drive system of a motor vehicle, as well as an electric drive system with such a transmission

DE102022005257B4Pending Publication Date: 2026-08-06ZF FRIEDRICHSHAFEN AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
ZF FRIEDRICHSHAFEN AG
Filing Date
2022-02-22
Publication Date
2026-08-06

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Abstract

The invention relates to a transmission for an electric drive system of a motor vehicle, comprising a housing and a differential transmission, which is operatively connected on the input side to at least one electric machine and on the output side to a first and a second output shaft. The two output shafts are arranged coaxially to each other. The first output shaft extends axially opposite to the second output shaft. The second output shaft is at least partially designed as a hollow shaft, and the first output shaft projects at least partially into the second output shaft. A single first bearing is arranged radially between the second output shaft and a rotationally fixed component of the transmission for rotatable support of the second output shaft. A second bearing is arranged radially between the first and second output shafts for rotatable support of both output shafts.A third bearing is arranged radially between the first and second output shafts for rotatable support of the two output shafts, and the first bearing is arranged axially within the area occupied by the second and third bearings. Alternatively, a third bearing is arranged radially between the first output shaft and a bearing journal for rotatable support of the first output shaft relative to a bearing journal, the bearing journal being non-rotatably connected to the second output shaft.
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Citation Information

Patent Citations

  • Powertrain of a purely electric all-wheel drive vehicle

    DE102011056047A1

  • Drive device for electrically propelling a motor vehicle, in particular a passenger vehicle

    DE102020000191A1

  • Powertrain for a motor vehicle and motor vehicles with at least one such powertrain

    DE102021200523A1

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    WO2015082168A1

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    JP1993332401A