Patent ID: 9435415
Filing Date: 2016-09-06
CPC Classification: B60K,F16H

Claim Text:
1. An electric drive for a motor vehicle, comprising: an electric motor and a drive unit, wherein the electric motor comprises an output shaft which is rotatingly drivable around a first rotational axis (A); wherein the drive unit has a first gear stage that is driveable by the electric motor, a second gear stage that is driveable by the first gear stage, and a differential drive that is driveable by the second gear stage; wherein the first gear stage comprises a driving wheel and an output wheel, wherein the driving wheel and the output wheel are drivingly connected to each other with a fixed transmission ratio, wherein the driving wheel is directly connected to the output shaft of the electric motor in a rotationally fixed way and is rotatingly driveable by the electric motor around the first rotational axis (A), and wherein the output wheel is rotatingly driveable around a second rotational axis (B); wherein the second rotational axis (B) is arranged so as to be parallel off-set to the first rotational axis (A); wherein the second gear stage comprises a planetary drive with an input element drivingly connected to the output wheel of the first gear stage, and an output element drivingly connected to the differential drive; and wherein the input element and the output element of the second gear stage as well as the differential drive are arranged coaxially to the second rotational axis (B); the electric drive further comprising a housing with a first housing portion and a second housing portion connected to each other, and a hollow shaft extending from the first housing portion into the second housing portion; wherein the first gear stage is arranged in the first housing portion, the second gear stage and the differential drive are arranged in the second housing portion, and the output wheel of the first gear stage is rotationally fixed to a first portion of the hollow shaft arranged in the first housing part, and the input element of the second gear stage is rotationally fixed to a second portion of the hollow shaft arranged in the second housing portion.