US 12,305,738 B1
Electric drive unit for a motor vehicle
Tobias Schilder, Ludwigsburg (DE); Jonathan Zeibig, Aalen (DE); Tobias Haerter, Stuttgart (DE); Carsten Gitt, Stuttgart (DE); and Klaus Riedl, Tübingen (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 18/836,211
Filed by MERCEDES-BENZ GROUP AG, Stuttgart (DE)
PCT Filed Feb. 3, 2023, PCT No. PCT/EP2023/052669
§ 371(c)(1), (2) Date Aug. 6, 2024,
PCT Pub. No. WO2023/148325, PCT Pub. Date Aug. 10, 2023.
Claims priority of application No. 10 2022 000 463.1 (DE), filed on Feb. 7, 2022.
Int. Cl. B60K 17/04 (2006.01); B60K 1/02 (2006.01); B60K 17/16 (2006.01); F16H 37/08 (2006.01); F16H 48/06 (2006.01); F16H 48/10 (2012.01); F16H 48/11 (2012.01)
CPC F16H 37/0806 (2013.01) [B60K 1/02 (2013.01); B60K 17/046 (2013.01); B60K 17/165 (2013.01); F16H 48/06 (2013.01); F16H 48/10 (2013.01); F16H 48/11 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electric drive unit for a motor vehicle, the electric drive unit comprising:
a first electric engine having a first rotor;
a second electric engine having a second rotor;
a gear unit comprising
a differential having exactly three first shafts arranged coaxially to each other, wherein the exactly three first shafts are
a sum shaft to which the first rotor is connected in such a way that torques supplied by the first rotor are introducible into the gear unit via the sum shaft;
a first differential shaft coupled to a first vehicle wheel in such a way that torques are dischargeable from the gear unit via the first differential shaft and transmitted onto the first vehicle wheel; and
a second differential shaft coupled to a second vehicle wheel in such a way that torques are dischargeable from the gear unit via the second differential shaft and transmitted onto the second vehicle wheel;
a superimposed planetary gear set which has exactly three further shafts, wherein the exactly three further shafts are
a sun gear;
a planetary carrier connected in a rotationally fixed manner to the first differential shaft; and
an ring gear;
a first switching unit configured to couple the second rotor to the ring gear in such a way that torques supplied by the second rotor are introducible into the gear unit via the ring gear; and
a second switching unit configured to couple the second rotor to the sum shaft in such a way that torques supplied by the second rotor are introducible into the gear unit via the sum shaft,
wherein the sun gear is connected to the sum shaft in a rotationally fixed manner.