US 12,247,650 B1
Electric drive system for a motor vehicle with two electric motors and a switchable torque vectoring function
Jonathan Zeibig, Aalen (DE); Tobias Haerter, Stuttgart (DE); Carsten Gitt, Stuttgart (DE); and Tobias Schilder, Ludwigsburg (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 18/718,954
Filed by MERCEDES-BENZ GROUP AG, Stuttgart (DE)
PCT Filed Nov. 18, 2022, PCT No. PCT/EP2022/082500
§ 371(c)(1), (2) Date Jun. 12, 2024,
PCT Pub. No. WO2023/110290, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 10 2021 006 118.7 (DE), filed on Dec. 13, 2021.
Int. Cl. F16H 48/36 (2012.01); B60K 1/02 (2006.01); B60K 17/02 (2006.01); B60K 17/16 (2006.01); F16H 37/08 (2006.01); F16H 48/10 (2012.01)
CPC F16H 48/36 (2013.01) [B60K 1/02 (2013.01); B60K 17/02 (2013.01); B60K 17/165 (2013.01); F16H 37/0806 (2013.01); F16H 48/10 (2013.01); F16H 2048/364 (2013.01); F16H 2048/368 (2013.01); F16H 2200/0021 (2013.01); F16H 2200/201 (2013.01); F16H 2200/2035 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electric drive system for a motor vehicle, the electric drive system comprising:
a first electric machine with a first rotor;
a second electric machine with a second rotor; and
a planetary transmission with a first planetary gear set, a second planetary gear set, a first input shaft, a second input shaft, a first output shaft, and a second output shaft,
wherein the first input shaft is configured to introduce first torques originating from the first electric machine into the planetary transmission,
wherein the second input shaft is configured to introduce second torques originating from the second electric machine into the planetary transmission,
wherein the first output shaft is configured to discharge third torques from the planetary transmission,
wherein the second output shaft is configured to discharge fourth torques from the planetary transmission,
wherein the first planetary gear set has a first sum shaft, a first differential shaft, and a second differential shaft,
wherein the second planetary gear set has a second sum shaft, a third differential shaft, and a fourth differential shaft,
wherein the second input shaft is connected in a rotationally fixed manner with the first differential shaft,
wherein the first output shaft is connected in a rotationally fixed manner with the first sum shaft,
wherein the second output shaft is connected in a rotationally fixed manner with the second differential shaft,
wherein the planetary transmission has a third planetary gear set having a third sum shaft, a fifth differential shaft, and a sixth differential shaft,
wherein the first input shaft is connected in a rotationally fixed manner with the third sum shaft,
wherein the third differential shaft is connected in a rotationally fixed manner with the fifth differential shaft,
wherein the first output shaft is connected in a rotationally fixed manner with the fourth differential shaft,
wherein a first switching element is configured to connect the fourth differential shaft in a rotationally fixed manner with the sixth differential shaft, and
wherein a second switching element is configured to connect the third differential shaft in a rotationally fixed manner with the sixth differential shaft.