Continuously variable transmission with an axial sun-idler controller
First Claim
1. A continuously variable transmission comprising:
- an input assembly configured to be coupled to receive input rotational motion;
an output assembly to provide a rotational output, the output assembly configured to be rotationally coupled to a load;
an input/output planetary ratio assembly configured and arranged to set an input to output speed ratio between the input assembly and the output assembly;
an input speed feedback control assembly configured and arranged to provide an axial speed force in response to a rotation from the input assembly on a shift rod;
a torque feedback control assembly configured and arranged to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly; and
a shifting member coupled to the shift rod, the shifting member further configured and arranged to control the input/output planetary ratio assembly based on a position of the shift rod.
2 Assignments
0 Petitions
Accused Products
Abstract
A continuously variable transmission includes an input assembly. The input assembly coupled to receive input rotational motion. An output assembly is used to provide a rotational output and is coupled to a load. Moreover, an input/output planetary ratio assembly sets an input to output speed ratio between the input assembly and the output assembly. An input speed feedback control assembly is used to provide an axial speed force in response to a rotation from the input assembly on a shift rod. A torque feedback control assembly is used to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly. In addition, a shifting member is coupled to the shift rod. The shifting member controls the input/output planetary ratio assembly based on a position of the shift rod.
65 Citations
20 Claims
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1. A continuously variable transmission comprising:
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an input assembly configured to be coupled to receive input rotational motion; an output assembly to provide a rotational output, the output assembly configured to be rotationally coupled to a load; an input/output planetary ratio assembly configured and arranged to set an input to output speed ratio between the input assembly and the output assembly; an input speed feedback control assembly configured and arranged to provide an axial speed force in response to a rotation from the input assembly on a shift rod; a torque feedback control assembly configured and arranged to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly; and a shifting member coupled to the shift rod, the shifting member further configured and arranged to control the input/output planetary ratio assembly based on a position of the shift rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A continuously variable transmission comprising:
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an input assembly configured to be coupled to receive input rotational motion; an output assembly to provide a rotational output, the output assembly configured to be rotationally coupled to a load; an input/output planetary ratio assembly configured and arranged to set an input to output speed ratio between the input assembly and the output assembly, the input/output planetary assembly having a first carrier having a first central passage and a second carrier having a second central passage and plurality of planets rotationally engaged between the first and second carriers; a shift rod extending through the first central passage of the first carrier and the second central passage of the second carrier; an input speed feedback control assembly configured and arranged to provide an axial speed force in response to a rotation from the input assembly on the shift rod; a torque feedback control assembly configured and arranged to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly; and a shifting member coupled to the shift rod, the shifting member positioned to rotate an axis of rotation of the planets between the first carrier and the second carrier based on a position of the shift rod to control the input/output planetary ratio assembly. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A continuously variable transmission comprising:
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an input assembly configured to be coupled to receive input rotational motion; an output assembly to provide a rotational output, the output assembly configured to be rotationally coupled to a load; an input/output planetary ratio assembly configured and arranged to set an input to output speed ratio between the input assembly and the output assembly, the input/output planetary assembly having a first carrier having a first central passage and a second carrier having a second central passage and plurality of planets rotationally engaged between the first and second carriers via axles, the input/output planetary ratio assembly further including at least one set of legs coupled to at least one axle; a shift rod extending through the first central passage of the first carrier and the second central passage of the second carrier; an input speed feedback control assembly configured and arranged to provide an axial speed force in response to a rotation from the input assembly on the shift rod; a torque feedback control assembly configured and arranged to provide an axial load force on the shift rod in an opposite direction from the axial speed force in response to a torque of a load coupled to the output assembly; and a shifting member coupled to the shift rod, the shifting member positioned to engage the at least one set of legs of the at least one axle based on a position of the shift rod to control the input/output planetary ratio assembly. - View Dependent Claims (19, 20)
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Specification