Hybrid powertrain system
First Claim
Patent Images
1. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
- a change-gear transmission having a first input shaft, an output member 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;
an output clutch operably positioned between the first input shaft and the output member, wherein at least one of the first and second input shafts is configured for connection to a second prime mover, wherein the first input shaft and the output member are generally co-axial; and
an 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.
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Accused Products
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.
47 Citations
32 Claims
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1. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, an output member 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; an output clutch operably positioned between the first input shaft and the output member, wherein at least one of the first and second input shafts is configured for connection to a second prime mover, wherein the first input shaft and the output member are generally co-axial; and an 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, a second input shaft, and an output member, wherein the output member is coupled to a driveshaft for rotation therewith; 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; an output clutch operably positioned between the first input shaft and the output member such that the first input shaft may be coupled for rotation at about the same speed as a driveshaft, wherein at least one of the first and second input shafts is operably connected to a second prime mover, and wherein the first input shaft and the output member are generally co-axial; and an 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. - View Dependent Claims (11, 12, 13)
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14. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, a second input shaft, and an output member, wherein the output member is coupled to a driveshaft for rotation therewith; a twin clutch that includes a first main clutch configured to selectively transfer torque between a first prime mover and the first input shaft and a second main clutch configured to selectively transfer torque between the first prime mover and the second input shaft; and an output clutch operably positioned between the first input shaft and the output member such that the first prime mover and a second prime mover selectively transmit torque to a driveshaft without the transfer of torque through a meshed gear ratio. - View Dependent Claims (15, 16, 17, 18)
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19. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, an output member 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 an output clutch operably positioned between the first input shaft and the output member, wherein at least one of the first and second input shafts is configured for connection to a second prime mover, wherein the first input shaft and the output member are generally co-axial, wherein the first input shaft includes at least one first input gear and the second input shaft includes at least one second input gear, and 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. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, an output member 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 an output clutch operably positioned between the first input shaft and the output member, wherein at least one of the first and second input shafts is configured for connection to a second prime mover, wherein the first input shaft and the output member are generally co-axial, and wherein the second prime mover selectively transfers a torque to a driveshaft to hold the vehicle at rest on a grade when both the first main clutch and the second main clutch are disengaged. - View Dependent Claims (26, 27)
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28. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, a second input shaft, and an output member, wherein the output member is coupled to a driveshaft for rotation therewith; 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 an output clutch operably positioned between the first input shaft and the output member such that the first input shaft may be coupled for rotation at about the same speed as a driveshaft, wherein at least one of the first and second input shafts is operably connected to a second prime mover, and wherein the first input shaft and the output member are generally co-axial, wherein the second prime mover may selectively rotate the output member in a reverse rotational direction and the second prime mover may selectively counter-rotate the output member in an opposite rotational direction without the use of an idler gear. - View Dependent Claims (29, 30)
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31. A transmission and clutch arrangement for a dual prime mover powertrain system, comprising:
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a change-gear transmission having a first input shaft, a second input shaft, and an output member, wherein the output member is coupled to a driveshaft for rotation therewith; 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 an output clutch operably positioned between the first input shaft and the output member such that the first input shaft may be coupled for rotation at about the same speed as a driveshaft, wherein at least one of the first and second input shafts is operably connected to a second prime mover, and wherein the first input shaft and the output member are generally co-axial, wherein the second prime mover selectively holds the vehicle at rest on a grade when both the first main clutch and the second main clutch are disengaged. - View Dependent Claims (32)
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Specification