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US 2012/0238384 A1Published application
Locking continuously variable transmission (cvt)
AssigneeVMT Technologies LLC
InventorsGary D. Lee, William M. Decker, Eric E. Aston
Life of this patent
Estimating the term…
Abstract
In one example, a transmission is provided that includes a sheave of selectively variable configuration, a driven member configured to engage the sheave, and a plurality of drive members configured for radial movement to selectively engage the driven member. The transmission may be operable in one or more of the following modes: traction mode, integer mode, IN mode, and infinite mode.
Claims20
A transmission, comprising:
- a sheave of selectively variable configuration, the sheave defining a first axis of rotation;
- a driven member configured to engage the sheave;
- and
- a plurality of drive members configured to selectively engage the driven member, each of the drive members configured to rotate about a common second axis of rotation that is spaced apart from the first axis of rotation, the drive members being configured for radial movement relative to the second axis of rotation, wherein indexing of the drive members is implemented only in response to initiation of a change to a drive ratio of the transmission.
1 more element
A transmission, comprising:
- a sheave of selectively variable configuration, the sheave defining a first axis of rotation;
- a chain configured to engage the sheave;
- and
- a plurality of sector gears configured to selectively engage the chain, each of the sector gears configured to rotate about a common second axis of rotation that is spaced apart from the first axis of rotation, the sector gears being configured to translate radially relative to the second axis of rotation, wherein indexing of the sector gears is implemented only in response to initiation of a change to a drive ratio of the transmission.
1 more element
A transmission system, comprising:
- a transmission comprising:
- a sheave of selectively variable configuration, the sheave defining a first axis of rotation;
- a chain configured to engage the sheave;
- a plurality of sector gears configured to selectively engage the chain, each of the sector gears configured to rotate about a common second axis of rotation that is spaced apart from the first axis of rotation, the sector gears being configured to translate radially relative to the second axis of rotation, wherein indexing of the sector gears is implemented only in response to initiation of a change to a drive ratio of the transmission;
- and
- a controller operable to initiate a shift cycle of the transmission.
3 more elements
Dependencies are inferred from the claim text.