US 11,780,315 B2
Transmission assembly for a hybrid vehicle
Theodor Gassmann, Siegburg (DE)
Assigned to GKN Automotive Ltd., Redditch (GB)
Appl. No. 16/624,328
Filed by GKN Automotive Ltd., Redditch (GB)
PCT Filed Jun. 29, 2017, PCT No. PCT/EP2017/066084
§ 371(c)(1), (2) Date Dec. 19, 2019,
PCT Pub. No. WO2019/001708, PCT Pub. Date Jan. 3, 2019.
Prior Publication US 2021/0146767 A1, May 20, 2021
Int. Cl. B60K 6/365 (2007.10); F16H 3/62 (2006.01); B60K 6/26 (2007.10); B60K 6/387 (2007.10); B60K 6/48 (2007.10); B60K 6/547 (2007.10); F16H 1/28 (2006.01)
CPC B60K 6/365 (2013.01) [B60K 6/26 (2013.01); B60K 6/387 (2013.01); B60K 6/48 (2013.01); B60K 6/547 (2013.01); F16H 1/28 (2013.01); F16H 3/62 (2013.01); B60K 2006/268 (2013.01); B60K 2006/4825 (2013.01); B60Y 2200/92 (2013.01); B60Y 2400/46 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2035 (2013.01)] 8 Claims
OG exemplary drawing
 
8. A transmission assembly for a hybrid vehicle having an internal combustion engine and an electric machine, wherein a first drive torque of the internal combustion engine and a second drive torque of the electric machine are transferable to a drive shaft of the hybrid vehicle via the transmission assembly, wherein the transmission assembly comprises:
(1) a first transmission input shaft, via which the first drive torque of the internal combustion engine is introduced into the transmission assembly;
(2) a second transmission input shaft, via which the second drive torque of the electric machine is introduced into the transmission assembly;
(3) the drive shaft;
(4) at least a first planetary transmission having at least a first ring gear, a first planetary carrier, and a first sun gear;
(5) a second planetary transmission having at least a second ring gear, a second planetary carrier and a second sun gear, wherein the first planetary transmission is connected via the second planetary transmission to the drive shaft;
(6) a third clutch, wherein the third clutch connects two components of the second planetary transmission together in an engageable manner and a disengageable manner to lock the second planetary transmission; and
(7) a fourth clutch, wherein the fourth clutch connects one of the components of the second planetary transmission to a housing of the transmission assembly in an engageable manner and a disengageable manner;
wherein the first transmission input shaft is connected via the first planetary transmission to the second transmission input shaft and to the drive shaft; wherein the transmission assembly provides a plurality of operating modes including:
a. driving the drive shaft solely via the second drive torque;
b. driving the drive shaft via the first drive torque and the second drive torque, wherein the first transmission input shaft and the second transmission input shaft are connected together via a constant transmission mode;
c. driving the drive shaft via the first drive torque or the second drive torque, wherein the first drive torque or the second drive torque is transferred via a first transmission mechanism and via a second transmission mechanism.