Continuously variable transmission
First Claim
1. A continuously variable transmission (CVT) comprising:
- a plurality of traction planet assemblies arranged about a longitudinal axis of the CVT;
a first stator coupled to the traction planet assemblies, the first stator having a plurality of radial guide slots;
a second stator coupled to the traction planet assemblies, the second stator having a plurality of radially offset guide slots configured to guide the traction planet assemblies;
a reaction plate coupled to the traction planet assemblies;
a plurality of eccentric gears coupled to the first stator;
a stator driver coupled to the eccentric gears; and
wherein the second stator is adapted to rotate with respect to the first stator.
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Accused Products
Abstract
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a control system is adapted to facilitate a change in the ratio of a CVT. In another embodiment, a control system includes a stator plate configured to have a plurality of radially offset slots. Various inventive traction planet assemblies and stator plates can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include planet axles configured to cooperate with the stator plate. In one embodiment, the stator plate is configured to rotate and apply a skew condition to each of the planet axles. In some embodiments, a stator driver is operably coupled to the stator plate. Embodiments of a traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.
505 Citations
23 Claims
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1. A continuously variable transmission (CVT) comprising:
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a plurality of traction planet assemblies arranged about a longitudinal axis of the CVT; a first stator coupled to the traction planet assemblies, the first stator having a plurality of radial guide slots; a second stator coupled to the traction planet assemblies, the second stator having a plurality of radially offset guide slots configured to guide the traction planet assemblies; a reaction plate coupled to the traction planet assemblies; a plurality of eccentric gears coupled to the first stator; a stator driver coupled to the eccentric gears; and wherein the second stator is adapted to rotate with respect to the first stator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A stator assembly for a continuously variable transmission (CVT) having a plurality of traction planet assemblies, the stator assembly comprising:
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a first stator having a plurality of radial guide slots; a second stator coaxial with the first stator, the first and second stators configured to rotate relative to each other, the second stator having a plurality of radially off-set guide slots; a reaction member coaxial with the first and second stators; a plurality of eccentric gears coupled to the reaction member and the first stator; and a stator driver coupled to each of the eccentric gears. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification