US 11,780,315 B2Granted

Transmission assembly for a hybrid vehicle

AssigneeGKN Automotive AG

InventorTheodor Gassmann

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Abstract

A transmission assembly for a hybrid vehicle includes 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: a first transmission input shaft, via which the first drive torque 1 of the internal combustion engine is introduced into the transmission assembly; a second transmission input shaft, via which the second drive torque of the electric machine is introduced into the transmission assembly; the drive shaft; and at least a first planetary transmission including a first ring gear, a first planetary carrier and a first sun gear; wherein the first transmission input shaft is connected via the first planetary transmission to the second transmission input shaft and to the drive shaft.

Claims8

Dependent claims

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 first clutch;
(6) a sixth clutch;
and
(7) a seventh clutch;
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;
and
wherein the first planetary transmission is the only planetary transmission within the transmission assembly;
wherein the first clutch connects the first transmission input shaft to the second transmission input shaft and additionally the first transmission input shaft to a first component of the first planetary transmission in an engageable manner and a disengageable manner via the constant transmission mode;
wherein the sixth clutch connects the second transmission input shaft to a second component of the first planetary transmission via the constant transmission mode;
and
wherein the seventh clutch connects the second component of the first planetary transmission to a housing of the transmission assembly in an engageable manner and a disengageable manner.

16 more elements

(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.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/624,328Filed 29 Jun 2017
Published: US 2021/0146767 A120 May 2021
Granted: 10 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

B60K 6/365
Characterised by the transmission gearings: with the gears having orbital motion
B60K 6/26
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the motors or the generators
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/48
Characterised by the architecture of the hybrid electric vehicle: parallel type