An axle assembly having a gear reduction unit and an interaxle different unit. The gear reduction unit may be operatively connected to an input shaft and may selectively provide gear reduction to a differential assembly and the interaxle differential unit. The interaxle differential unit may operatively connect the gear reduction unit to the output shaft.

An axle assembly having a gear reduction unit and an interaxle differential unit. The gear reduction unit may be operatively connected to an input shaft and may selectively provide gear reduction to a differential assembly and the interaxle differential unit. The interaxle differential unit may operatively connect the gear reduction unit to the output shaft.

The transmission includes a rotation shaft, a shift gear, and a gear switching part. The shift gear is rotatably supported by the rotation shaft. The gear switching part is relatively unrotatably supported by the rotation shaft in a movable manner in an axial direction. The gear switching part is configured to be moved in the axial direction by a shift fork, to switch connection and disconnection between the rotation shaft and the shift gear. The gear switching part and the shift fork have a bearing therebetween. The bearing is brought into contact with the gear switching part and the shift fork, thereby reducing friction between the gear switching part and the shift fork, resulting in improvement of durability of the sliding surfaces of the gear switching part and the shift fork.

A clutch assembly includes a clutch disc configured to engage a prime mover, a pressure plate having a clutch biasing element, and a clutch engagement member structured to couple to a clutch actuation element at an engagement position. The clutch adjustment member maintains a consistent engagement position as a face of the clutch disc experiences wear.

A driving device for a deceleration clutch, comprises a on a driving motor shaft. The drive wheel has a supporting surface with a height difference in the axial direction. A head of a shift fork lever controls the clutch sleeve to move up and down. A tail of the shift fork lever is supported on the supporting surface. The tail of the shift fork lever relatively slides on the supporting surface, so that a height of the tail of the shift fork lever changes which drives a height of the head of the shift fork and further drives the clutch sleeve to move up and down. Alternatively, the drive wheel has a supporting slide rail with a height difference in the axial direction, or has cam circumference that is radially gradient, or a bracing rod is eccentrically arranged on an end surface of the drive wheel.

An apparatus for automatic shifting of a vehicle may include a rotation shaft connected to an output shaft to rotate together; first connecting members each having a first end portion to which a first link disposed on the rotation shaft is hinged and a second end portion to which a centrifugal weight is disposed, to pivot about the first end portions by centrifugal force; second connecting members each having a first end portion hinged to the middle portion of the first connecting member and a second end portion hinged to a second link disposed on the rotation shaft; a slider disposed on the rotation shaft to be coupled to any one of the first link and the second link and sliding in an axial direction of the rotation shaft; and a shift fork connected to the slider to engage a synchronizer with a shift stage gear.

Linear actuator mechanisms (100) for vehicle disconnect/connect systems having a stationary guide rod (122); a shift fork (118) the stationary guide rod extends therethough; a drive nut (110); a drive screw (120) extending through the drive nut; a first spring plate (114), a second spring plate (116), and a compression spring (112) positioned between a radially extending portion of the first spring plate and a radially extending portion of the second spring plate. A second radially extending portion of the first spring plate and a second radially extending portion of the second spring plate are in contact with the drive nut on axially opposite sides of the drive nut. The first and second spring plates are moveable axially along the stationary guide rod by the drive nut to compress the compression spring.

A disconnect clutch actuator mechanism includes a shift fork, an actuator, and a position sensor. The shift fork includes a rack gear, a pair of pins, and a sensor target. The shift fork is arranged to be pivotable on the pair of pins. The actuator includes a pinion gear engaged with the rack gear. The actuator is arranged to pivot the shift fork. The position sensor is arranged proximate the sensor target for sensing a pivot position of the shift fork. In some example embodiments, the rack gear includes a pair of arched portions and a toothed portion disposed on at least one of the pair of arched portions. The pinion gear is engaged with the toothed portion. In an example embodiment, the rack gear has a gap disposed between the pair of arched portions and the pinion gear is disposed in the gap.

An axle assembly having a gear reduction unit and an interaxle differential unit. The gear reduction unit may be operatively connected to an input shaft and may selectively provide gear reduction to a differential assembly and the interaxle differential unit. The interaxle differential unit may operatively connect the gear reduction unit to the output shaft.

A dog clutch of a vehicle power transmission device includes a sleeve, the dog clutch connecting/disconnecting a first rotating shaft to/from a first gear by moving the sleeve between a neutral position at which inner circumferential teeth formed on an inner circumferential side of the sleeve are not meshed with outer circumferential teeth on a side surface side of the first gear and an engagement position at which the inner circumferential teeth are meshed with the outer circumferential teeth, the inner circumferential teeth and the outer circumferential teeth having inclined surfaces tooth thicknesses of which become larger as the inner circumferential teeth and the outer circumferential teeth approach each other, and when the sleeve is moved to an engagement position by a shift fork, the sleeve being held in contact with a side surface of the first gear.