US 11,719,317 B2
Electric vehicle transmission
David Rittler, Neukirch (DE); Stefan Renner, Bodman-Ludwigshafen (DE); Stefan Spühler, Friedrichshafen (DE); Johannes Glückler, Friedrichshafen (DE); Michael Trübenbach, Friedrichshafen (DE); and Paul Lenz, Waldkirchen (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Oct. 17, 2022, as Appl. No. 18/47,103.
Claims priority of application No. 10 2021 212 164.0 (DE), filed on Oct. 28, 2021.
Prior Publication US 2023/0139069 A1, May 4, 2023
Int. Cl. F16H 37/08 (2006.01); F16H 61/00 (2006.01); B60K 17/08 (2006.01); B60K 1/00 (2006.01)
CPC F16H 37/082 (2013.01) [B60K 1/00 (2013.01); B60K 17/08 (2013.01); F16H 61/0059 (2013.01); B60K 2001/001 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/0039 (2013.01); F16H 2200/201 (2013.01); F16H 2200/2094 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric vehicle transmission comprising:
a drive input shaft configured to be coupled to an electric machine;
a drive output shaft;
a first planetary gearset
a second planetary gearset; and
a third planetary gearset;
wherein:
the first planetary gearset, the second planetary gearset and the third planetary gearset each comprise a first element, a second element and a third element, in the form of a sun gear, a planetary web, and a ring gear respectively, wherein at least in functional terms a first shifting element, a second shifting element and a third shifting element are provided;
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 and the first element of the third planetary gearset are connected rotationally fixed to one another
the third element of the first planetary gearset and the first element of the second planetary gearset are connected rotationally fixed to one another;
the third element of the third planetary gearset is immobilized;
the second element of the third planetary gearset is connected rotationally fixed to the drive output shaft;
the second element of the third planetary gearset is connected rotationally fixed to the drive output shaft;
the second element of the second planetary gearset can be immobilized by the first shifting element;
two of the elements of the second planetary gearset can be brought into rotationally fixed connection with one another by means of the second shifting element;
the third element of the second planetary gearset can be connected rotationally fixed by the third shifting element to the first element of the third planetary gearset and to the second element of the first planetary gearset; and
by means of an at least functionally effective fourth shifting element the said third element of the second planetary gearset can be brought into rotationally fixed connection with the drive output shaft.