POWERTRAIN WITH INPUT SHAFT AND ENGINE SPEED SYNCHRONIZATION AND METHOD FOR SHIFTING GEARS IN A POWERTRAIN
First Claim
1. A powertain, comprising:
- a prime mover;
a transmission;
an input shaft adapted to transmit torque between the prime mover and the transmission;
an output shaft adapted to transmit torque between the transmission and a driveline;
a master clutch between the prime mover and the input shaft, the clutch being movable between a disengaged position and an engaged position in which the clutch is not and is adapted to transmit torque between the prime mover and the input shaft, respectively;
an electric motor arranged for torque transmission with at least one of the input shaft and the output shaft; and
a controller for controlling the electric motor to rotate the input shaft at a rotational speed within a non-zero operating range of the prime mover when the clutch is moved from the disengaged to the engaged position.
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0 Petitions
Accused Products
Abstract
A powertrain includes a prime mover, a transmission, an input shaft adapted to transmit torque between the prime mover and the transmission, an output shaft adapted to transmit torque between the transmission and a driveline, and a master clutch between the prime mover and the input shaft, the clutch being movable between a disengaged position and an engaged position in which the clutch is not and is adapted to transmit torque between the prime mover and the input shaft, respectively. An electric motor is arranged for torque transmission with at least one of the input shaft and the output shaft, and a controller is provided for controlling the electric motor to rotate the input shaft at a rotational speed within an operating range of the prime mover when the clutch is moved from the disengaged to the engaged position.
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Citations
24 Claims
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1. A powertain, comprising:
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a prime mover; a transmission; an input shaft adapted to transmit torque between the prime mover and the transmission; an output shaft adapted to transmit torque between the transmission and a driveline; a master clutch between the prime mover and the input shaft, the clutch being movable between a disengaged position and an engaged position in which the clutch is not and is adapted to transmit torque between the prime mover and the input shaft, respectively; an electric motor arranged for torque transmission with at least one of the input shaft and the output shaft; and a controller for controlling the electric motor to rotate the input shaft at a rotational speed within a non-zero operating range of the prime mover when the clutch is moved from the disengaged to the engaged position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for shifting gears in a powertrain, comprising:
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disengaging a master clutch between a prime mover and an input shaft to a transmission; shifting gears in the transmission while the master clutch is disengaged; engaging the master clutch between the prime mover and the input shaft after shifting gears in the manual transmission; controlling a rotational speed of the input shaft after shifting gears and prior to engaging the master clutch while the prime mover rotates so that the rotational speed of the input shaft is within an operating range of the prime mover. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification