US 10,500,938 B2Granted

Motor vehicle powertrain

AssigneeGM Global Technology Operations LLC

InventorsJoseph R. Littlefield, Alan G. Holmes, Rebecca K. Risko Cattell

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Abstract

A vehicle powertrain includes first and second power sources and a transmission assembly having first and second input members and an output member. The transmission assembly also includes a first planetary gear-set connected to the first input member and a second planetary gear-set connected to the second input and the output members. The transmission assembly additionally includes a transmission housing retaining the first and second gear-sets. Furthermore, the transmission assembly includes a first torque-transmitting device for connecting one first gear-set node to the housing and a second torque-transmitting device for connecting a first gear-set node not connected to the housing to one second gear-set node. One first gear-set node is directly and continuously connected to one second gear-set node. The first power source is operatively connected to a node of the first gear-set and the second power source is operatively connected to a node of the second gear-set.

Claims18

Dependent claims

A powertrain for a motor vehicle, comprising:

a first power source configured to generate a first torque output;
a second power source configured to generate a second torque output;
and
a transmission assembly including:
a first input member, a second input member, and an output member;
a first planetary gear-set having a plurality of nodes and operatively connected to the first input member;
a second planetary gear-set having a plurality of nodes operatively connected to second input member and to the output member;
a transmission housing configured to retain the first and second planetary gear-sets;
a first torque-transmitting device configured to selectively connect one of the plurality of nodes of the first planetary gear-set to the transmission housing;
and
a second torque-transmitting device configured to selectively connect one of the plurality of nodes of the first planetary gear-set not connected to the transmission housing to one of the plurality of nodes of the second planetary gear-set;
wherein:
one of the plurality of nodes of the first planetary gear-set is directly and continuously connected to one of the plurality of nodes of the second planetary gear-set;
the first power source is operatively connected via the first input member to one of the plurality of nodes of the first planetary gear-set;
the second power source is operatively connected via the second input member to one of the plurality of nodes of the second planetary gear-set;
and
the second torque-transmitting device is configured to selectively connect the node of the first planetary gear-set connected to the first power source to the node of the second planetary gear-set connected to the second power source.

14 more elements

A motor vehicle comprising:

a first road wheel and a second road wheel;
a final drive assembly operatively connected to each of the first and second road wheels;
and
a powertrain including:
a first power source configured to generate a first torque output;
a second power source configured to generate a second torque output;
and
a transmission assembly including:
a first input member and a transmission output member operatively connected to the final drive assembly;
a first planetary gear-set having a plurality of nodes and operatively connected to the first input member;
a second planetary gear-set having a plurality of nodes operatively connected to second input member and to the output member;
a transmission housing configured to retain the first and second planetary gear-sets;
a first torque-transmitting device configured to selectively connect one of the plurality of nodes of the first planetary gear-set to the transmission housing;
and
a second torque-transmitting device configured to selectively connect one of the plurality of nodes of the first planetary gear-set not connected to the transmission housing to one of the plurality of nodes of the second planetary gear-set;
wherein:
one of the plurality of nodes of the first planetary gear-set is directly and continuously connected to one of the plurality of nodes of the second planetary gear-set;
the first power source is operatively connected via the first input member to one of the plurality of nodes of the first planetary gear-set;
the second power source is operatively connected via the second input member to one of the plurality of nodes of the second planetary gear-set;
and
the second torque-transmitting device is configured to selectively connect the node of the first planetary gear-set connected to the first power source to the node of the second planetary gear-set connected to the second power source.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/811,735Filed 14 Nov 2017
Published: US 2019/0143801 A116 May 2019
Granted: 10 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification27 codes

B60K 1/00
Arrangement or mounting of electrical propulsion units
B60K 6/365
Characterised by the transmission gearings: with the gears having orbital motion
B60K 5/02
Arrangement or mounting of internal-combustion or jet-propulsion units: with the engine main axis, e.g. crankshaft axis, substantially in or…
B60K 5/04
Arrangement or mounting of internal-combustion or jet-propulsion units: with the engine main axis, e.g. crankshaft axis, transversely to the…

Family

US 2019/0143801 A1Pre-grant publication · published 16 May 2019
US 10,500,938 B2This patent

From the US filing history. Foreign family members aren’t listed.

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