US 11,732,780 B2
Electric vehicle transmission
Christian Mittelberger, Ravensburg (DE); Stefan Blattner, Ravensburg (DE); Dennis Wohlfahrt, Friedrichshafen (DE); Thorsten Leim, Friedrichshafen (DE); and Kai Bornträger, Langenargen (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Mar. 21, 2022, as Appl. No. 17/699,584.
Claims priority of application No. 10 2021 202 984.1 (DE), filed on Mar. 26, 2021.
Prior Publication US 2022/0307573 A1, Sep. 29, 2022
Int. Cl. F16H 3/48 (2006.01); B60K 17/12 (2006.01); B60K 17/02 (2006.01); B60K 17/22 (2006.01)
CPC F16H 3/48 (2013.01) [B60K 17/02 (2013.01); B60K 17/12 (2013.01); B60K 17/22 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2035 (2013.01)] 13 Claims
OG exemplary drawing
 
1. Electric vehicle transmission, comprising:
a drive input shaft, the drive input shaft configured for connection to an electric machine;
a drive output shaft;
a first planetary gearset and a second planetary gearset, wherein the first planetary gearset and the second planetary gearset each comprise a first element, a second element, and a third element, respectively, in the form of a sun gear, a planetary web, and a ring gear, in each case; and
wherein a first shifting element and a second shifting element are provided, by the selective actuation of which the drive input shaft can be coupled to the drive output shaft by way of the planetary gearsets with the engagement of a gear in each case;
wherein:
the first element of the first planetary gearset is connected rotationally fixed to the drive input shaft;
the second element of the first planetary gearset is connected rotationally fixed to the first element of the second planetary gearset;
the second element of the second planetary gearset is connected rotationally fixed to the drive output shaft;
the third element of the second planetary gearset is held fixed;
the third element of the first planetary gearset can be connected rotationally fixed to the drive output shaft by means of the first shifting element, or the third element of the first planetary gearset can be held fixed by means of the first shifting element;
two of the elements of the first planetary gearset can be brought into rotationally fixed connection with one another by means of the second shifting element; and
a connection point in the drive input shaft axially between the first planetary gearset and the second planetary gearset, the connection point configured to connect the drive input shaft to the electric machine.