US 11,993,151 B2
Hybrid powertrain and assembly method for a hybrid powertrain
Sebastian Köpfler, Bühl (DE); and Bernhard Walter, Oberkirch-Haslach (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/284,564
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Oct. 14, 2019, PCT No. PCT/DE2019/100888
§ 371(c)(1), (2) Date Apr. 12, 2021,
PCT Pub. No. WO2020/094178, PCT Pub. Date May 14, 2020.
Claims priority of application No. 102018127639.7 (DE), filed on Nov. 6, 2018.
Prior Publication US 2021/0331577 A1, Oct. 28, 2021
Int. Cl. B60K 6/543 (2007.10); B60K 6/365 (2007.10); B60K 6/387 (2007.10); B60K 6/40 (2007.10); B60K 6/442 (2007.10); F16H 9/18 (2006.01); F16H 37/02 (2006.01); F16H 37/06 (2006.01); F16H 57/021 (2012.01); F16H 57/00 (2012.01)
CPC B60K 6/442 (2013.01) [B60K 6/365 (2013.01); B60K 6/387 (2013.01); B60K 6/40 (2013.01); B60K 6/543 (2013.01); F16H 9/18 (2013.01); F16H 37/022 (2013.01); F16H 37/065 (2013.01); F16H 57/021 (2013.01); B60Y 2200/92 (2013.01); F16H 2057/005 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A hybrid powertrain comprising:
an output shaft;
a combustion power section for providing a first torque to the output shaft, comprising:
an internal combustion engine comprising a combustion shaft for outputting the first torque;
a generator comprising a generator shaft for converting the first torque into electric energy; and
a variable belt transmission for variably translating the first torque, comprising:
a combustion-side cone pulley pair comprising a first axially movable pulley, arranged on a generator shaft side, for changing a transmission ratio of the variable belt transmission;
an output-side cone pulley pair comprising a second axially movable pulley, axially opposite the first axially movable pulley, for changing the transmission ratio of the variable belt transmission; and
a belt for variably torque-transmittingly connecting the combustion-side cone pulley pair to the output-side cone pulley pair;
an electric power section for providing a second torque to the output shaft; and
an output transmission torque transmittingly connected to the output shaft for:
transmitting the first torque between the combustion power section and the output shaft; and
transmitting the second torque between the electric power section and the output shaft, wherein:
the output transmission comprises a reduction stage; and
the reduction stage is a planetary roller gear, the planetary roller gear comprising:
a ring gear arranged as a rigid torque abutment;
a planetary carrier torque-transmittingly connected to the output shaft; and
a sun gear arranged as a torque input on a hollow shaft surrounding the output shaft.