Vehicle transmission
AssigneeOshkosh Corporation
InventorMartin Schimke
Life of this patent
Estimating the term…
Abstract
A transmission includes a bevel gear configured to provide power to a shaft of a vehicle and that is rotatably engaged with a collar assembly. The transmission also includes a planetary gear set selectively engageable with the collar assembly. The collar assembly includes a first collar and a second collar. The first collar and the second collar are axially coupled together and independently rotatable relative to one another. The collar assembly is slidable between a first position to engage the planetary gear set and rotate the shaft at a first speed, and a second position to disengage the planetary gear set and rotate the shaft at a second speed. Both the first collar and the second collar disengage the planetary gear set in the second position.
Claims19
A two-speed power transmission for a hybrid drive vehicle, comprising:
- a bevel gear configured to provide power to a shaft of the vehicle;
- the bevel gear rotatably engaged with a collar assembly;
- a planetary gear set selectively engageable with the collar assembly;
- the collar assembly comprising a first collar and a second collar, the first collar and the second collar axially coupled together and independently rotatable relative to one another, the collar assembly slidable between a first position to engage the planetary gear set and rotate the shaft at a first speed, and a second position to disengage the planetary gear set and rotate the shaft at a second speed, wherein both the first collar and the second collar disengage the planetary gear set in the second position.
A multi-speed power transmission for a hybrid drive vehicle, comprising:
- a power output source;
- a shaft coupled to one or more pairs of wheels of the vehicle;
- a planetary gear set concentrically disposed about the shaft;
- a collar assembly coupled to the power output source and concentrically disposed about the shaft and comprising a first collar and a second collar, the first collar and the second collar axially coupled together and independently rotatable relative to one another, the collar assembly slidable between a first position to engage the planetary gear set and rotate the shaft at a first speed, a second position to disengage and bypass the planetary gear set and rotate the shaft at a second speed, and a neutral position between the first position and the second position, wherein both the first collar and the second collar disengage the planetary gear set in the second position, and wherein the planetary gear set is disengaged and the first collar rotates in response to the power input source and the second collar and the shaft remain stationary in the neutral position.
A vehicle comprising:
- at least one drive wheel;
- at least one axle assembly having a shaft configured to rotate the at least one drive wheel;
- and
- a power transmission coupled to the shaft, the power transmission comprising:
- a collar assembly comprising a first collar and a second collar, the first collar and the second collar axially coupled together and independently rotatable relative to one another;
- a bevel gear configured to provide power to the shaft, the bevel gear rotatably engaged with the collar assembly;
- and
- a planetary gear set selectively engageable with the collar assembly,
- wherein the collar assembly is slidable between a first position to engage the planetary gear set and rotate the shaft at a first speed, and a second position to disengage the planetary gear set and rotate the shaft at a second speed, wherein both the first collar and the second collar disengage the planetary gear set in the second position.
Dependencies are inferred from the claim text.