US 12,103,398 B2
Hybrid drive system for a motor vehicle, and motor vehicle
Carsten Gitt, Stuttgart (DE); Tobias Haerter, Stuttgart (DE); Peter Hahn, Stuttgart (DE); Andreas Kolb, Wernau (DE); Klaus Riedl, Tübingen (DE); Tobias Schilder, Ludwigsburg (DE); and Jonathan Zeibig, Aalen (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 18/286,381
Filed by MERCEDES-BENZ GROUP AG, Stuttgart (DE)
PCT Filed Mar. 31, 2022, PCT No. PCT/EP2022/058661
§ 371(c)(1), (2) Date Oct. 11, 2023,
PCT Pub. No. WO2022/218724, PCT Pub. Date Oct. 20, 2022.
Claims priority of application No. 10 2021 001 879.6 (DE), filed on Apr. 12, 2021.
Prior Publication US 2024/0181865 A1, Jun. 6, 2024
Int. Cl. B60K 6/365 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10); F16H 3/62 (2006.01)
CPC B60K 6/365 (2013.01) [B60K 6/48 (2013.01); B60K 6/547 (2013.01); F16H 3/62 (2013.01); B60K 2006/4816 (2013.01); B60Y 2200/92 (2013.01); F16H 2200/2007 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A hybrid drive system for a motor vehicle, the hybrid drive system comprising:
an internal combustion engine having a first output shaft;
an electric machine having a rotor with a rotor shaft as second output shaft; and
a transmission having a four-shaft, first planetary set, a second planetary set, a first shifting element, a second shifting element, a third shifting element and a third output shaft, wherein
the four-shaft, first planetary set has a first shaft, a second shaft, a third shaft and a fourth shaft,
the second planetary set has a first element, a second element, and a third element,
the first shaft, the second shaft, the third shaft, and the fourth shaft are rotatable relative to one another and connectable to one another in a rotationally fixed manner by the second shifting element,
the first output shaft is coupled or is couplable to the first shaft in a rotationally fixed manner,
the rotor shaft is coupled or is couplable to the second shaft in such a way that torques emanating from the rotor shaft are introducible into the transmission via the second shaft,
the third shaft is couplable to the third output shaft in a rotationally fixed manner by the first shifting element,
the fourth shaft is coupled or is couplable to the first element of the second planetary set in a rotationally fixed manner,
the first shaft comprises a first sun gear of the first planetary set and the third shaft comprises a second sun gear of the first planetary set, and
the four-shaft, first planetary set has exactly four shafts.