Hybrid powertrain system

• US 20060021456A1
• Filed: 09/26/2005
• Published: 02/02/2006
• Est. Priority Date: 12/30/2003
• Status: Active Grant

• Current Assignee: Eaton Cummins Automated Transmission Technologies, LLC
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Hughes, Douglas A.
• Granted Patent: US 7,272,987 B2
• Time in Patent Office: Days
• US Class Current: 74/340
• CPC Class Codes: B60K 2006/4825 Electric machine connected or connectable to gearbox input shaft
• CPC Class Codes: B60K 6/36 characterised by the transmission gearings
• CPC Class Codes: B60K 6/387 Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• CPC Class Codes: B60K 6/40 characterised by the assembly or relative disposition of components
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60Y 2400/428 Double clutch arrangements; Dual clutches
• CPC Class Codes: F16H 2200/0047 the gear ratios comprising five forward speeds
• CPC Class Codes: F16H 3/006 power being selectively transmitted by either one of the parallel flow paths
• CPC Class Codes: F16H 61/688 with two inputs, e.g. selection of one of two torque-flow paths by clutches
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y10T 74/111 Speed controlled
• CPC Class Codes: Y10T 74/19223 Disconnectable counter shaft
• CPC Class Codes: Y10T 74/19228 Multiple concentric clutch shafts
• CPC Class Codes: Y10T 74/19288 Double clutch and interposed transmission

Abstract

A powertrain system is provided that includes a first prime mover and change-gear transmission having a first input shaft and a second input shaft. A twin clutch is disposed between the first prime mover and the transmission. The twin clutch includes a first main clutch positioned between the first prime mover and the first input shaft and a second main clutch positioned between the first prime mover and the second input shaft. The powertrain system also includes a second prime mover operably connected to one of the first and second input shafts.

Claims

1-10. -10. (canceled)

11. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:

a change-gear transmission having a first input shaft and a second input shaft;

a twin clutch that includes a first main clutch configured to selectively transfer power between a first prime mover and the first input shaft and a second main clutch configured to selectively transfer power between the first prime mover and the second input shaft; and

wherein at least one of the first and second input shafts is configured for connection to a second prime mover.

14. The transmission and clutch arrangement of claim 11, further including a second input shaft clutch positioned between the first input shaft and the second input shaft to selectively fix rotation of the first and second input shafts.

15. The transmission and clutch arrangement of claim 11, wherein the first prime mover is an internal combustion engine and the second prime mover is one of an electric motor and a hydraulic motor.

16. The transmission and clutch arrangement of claim 11, wherein the first input shaft includes at least one first input gear and the second input shaft includes at least one second input gear.

17. The transmission and clutch arrangement of claim 16, wherein the first and second input gears are secured to first and second input shafts, respectively, for rotation therewith.

18. The transmission and clutch arrangement of claim 16, wherein the transmission also includes a countershaft having at least two countershaft gears, and wherein each of the first and second input gears are meshed with a corresponding countershaft gear.

19. The transmission and clutch arrangement of claim 18, wherein the countershaft gears are rotatably supported on the countershaft.

12-13. -13. (canceled)

20. (canceled)