US 9,421,855 B2Granted

Powertrain system for hybrid vehicles having multiple modes of operation

AssigneeMcMaster University

InventorsPiranavan Suntharalingam, Ali Emadi

Life of this patent

Estimating the term…

Loading patent…

Abstract

A powertrain system for a vehicle is provided. The powertrain system includes an internal combustion engine, a first gearset connected to the internal combustion engine, a first electric machine connected to the first gearset, a drivetrain gear for connection to a drivetrain of the vehicle, a second gearset connecting the first gearset to the drivetrain gear, a second electric machine, and at least one dynamic clutch selectively coupling the second electric machine to the first electric machine, the first gearset, and the second gearset. In a first mode of operation, the at least one dynamic clutch couples the second electric machine and the first electric machine. In a second mode of operation, the at least one dynamic clutch couples the second electric machine and the first gearset. In a third mode of operation, the at least one dynamic clutch couples the second electric machine and the second gearset.

Claims26

Dependent claims

A powertrain system for a vehicle, the powertrain system comprising:

an internal combustion engine;
a first gearset connected to the internal combustion engine;
a first electric machine connected to the first gearset;
a drivetrain gear for connection to a drivetrain of the vehicle;
a second gearset connecting the first gearset to the drivetrain gear;
a second electric machine;
clutch connecting the second electric machine and the first electric machine;
a second dynamic clutch connecting the second electric machine and the first gearset;
and a third dynamic clutch connecting the second electric machine and the second gearset, and wherein:
in a first mode of operation, the first dynamic clutch is engaged and the second and third dynamic clutches are released to couple the second electric machine and the first electric machine;
in a second mode of operation, the second dynamic clutch is engaged and the first and third dynamic clutches are released to couple the second electric machine and the first gearset;
and in a third mode of operation, the third dynamic clutch is engaged and the first and second dynamic clutches are released to couple the second electric machine and the second gearset.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/850,757Filed 26 Mar 2013 · us provisional application
Priority: 26 Mar 2012
Published: US 2013/0252773 A126 Sep 2013
Granted: 23 Aug 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/445
Series-parallel type: differential gearing distribution type
B60K 6/52
Architecture of the driveline characterised by arrangement or kind of transmission units: driving a plurality of drive axles, e.g. four-wheel drive
B60K 2006/266
Characterised by the motors or the generators: with two coaxial motors or generators