TRANSMISSION WITH DUAL INPUT AND REDUCED NUMBER OF LAY SHAFTS

摘要

A transmission including: first and second input shafts; an output shaft; lay shafts; gears; and at least one forward output gear non-rotatably connected to the output shaft; an axis of rotation for each gear; half synchronizer clutches arranged to non-rotatably connect the gears to lay shafts and disconnect the gears from the lay shafts; and an idler gear non-rotatably connected to a lay shaft and meshed with the at least one forward output gear so that when the idler gear rotates about its axis of rotation, the at least one forward output gear rotates about its axis of rotation and when the at least one forward output gear rotates about its axis of rotation, the idler gear rotates about its axis of rotation. For at least one reverse gear ratio, the idler gear is arranged to rotate the output shaft opposite a direction of rotation for the first or second input shaft.

主权项

1. A transmission, comprising:
first and second input shafts; an output shaft; a plurality of lay shafts; a plurality of gears; at least one forward output gear non-rotatably connected to the output shaft; a plurality of half synchronizer clutches arranged to:
non-rotatably connect the plurality of gears to the plurality of lay shafts; and,disconnect the plurality of gears from the plurality of lay shafts; and, an idler gear:non-rotatably connected to a first lay shaft included in the plurality of lay shafts; and,meshed with the at least one forward output gear so that:
when the idler gear rotates about its axis of rotation, the at least one forward output gear rotates about its axis of rotation; and,when the at least one forward output gear rotates about its axis of rotation, the idler gear rotates about its axis of rotation, wherein: for at least one reverse gear ratio, the idler gear is arranged to rotate the output shaft opposite a direction of rotation for the first or second input shaft.