Abstract: In one aspect, a method for controlling the operation of a work vehicle including a power shift transmission is disclosed. The method may include receiving, with a controller, a speed command signal from an input device instructing the controller to reduce a vehicle speed of the work vehicle to zero, controlling at least one clutch of the power shift transmission in order to initially reduce the vehicle speed and proportionally applying a parking brake of the work vehicle to reduce the vehicle speed to zero.

Abstract: A method for operating a work vehicle in an automatic speed control mode is disclosed. The method may generally include receiving an input associated with a desired ground speed of the work vehicle, determining with a controller to implement a gear change and an erpm change in order to maintain the work vehicle at the desired ground speed, wherein the gear change includes a gear prep phase and a ratio change phase and controlling a timing parameter of at least one of the gear change or the erpm change such that the ratio change phase and the erpm change occur substantially simultaneously.

Abstract: A method for performing a shuttle shift with a continuously variable transmission of a work machine is disclosed. The method may generally include adjusting a swash plate angle of a hydrostatic power unit of the transmission in a first direction to reduce a travel speed of the work machine in an off-going direction, initiating a directional swap between an off-going directional clutch of the continuously variable transmission and an on-coming directional clutch of the continuously variable transmission while the work machine is traveling in the off-going direction and adjusting the swash plate angle of the hydrostatic unit in a second direction after the initiation of the directional swap to reduce slippage across the on-coming directional clutch, wherein the second direction is opposite the first direction.

Abstract: A method for controlling rollback of a work vehicle is disclosed. The method may include receiving a signal indicating that a pedal of the work vehicle has been depressed, wherein the work vehicle is initially traveling in a first direction up an inclined surface such that at least one clutch of the transmission is engaged. In addition, the method may include reducing a pressure within the at least one clutch after receiving the signal in order to decelerate the work vehicle in the first direction and engaging a parking brake of the work vehicle as the work vehicle reverses direction and travels in a second direction down the inclined surface.

Abstract: A method for performing a shuttle shift with a transmission of a work vehicle is disclosed, wherein the transmission includes an input shaft, a counter shaft and a plurality of driven shafts extending generally parallel to the input and counter shafts. The method may include disengaging a clutch associated with a first directional gear of a directional shaft of the plurality of driven shafts. The first directional gear may be configured to rotate the directional shaft in a first direction. Additionally, the method may include engaging clutches associated with at least two gears of at least one secondary driven shaft of the plurality of driven shafts to reduce a rotational speed of the directional shaft and, after the rotational speed of the directional shaft is reduced, engaging a clutch associated with a second directional gear of the directional shaft such that the directional shaft rotates in a second direction.

Abstract: A method for operating a work vehicle in an automatic speed control mode is disclosed. The method may generally include receiving an input associated with a desired ground speed of the work vehicle, determining with a controller to implement a gear change and an erpm change in order to maintain the work vehicle at the desired ground speed, wherein the gear change includes a gear prep phase and a ratio change phase and controlling a timing parameter of at least one of the gear change or the erpm change such that the ratio change phase and the erpm change occur substantially simultaneously.

Abstract: A method for performing a shuttle shift with a continuously variable transmission of a work machine is disclosed. The method may generally include adjusting a swash plate angle of a hydrostatic power unit of the transmission in a first direction to reduce a travel speed of the work machine in an off-going direction, initiating a directional swap between an off-going directional clutch of the continuously variable transmission and an on-coming directional clutch of the continuously variable transmission while the work machine is traveling in the off-going direction and adjusting the swash plate angle of the hydrostatic unit in a second direction after the initiation of the directional swap to reduce slippage across the on-coming directional clutch, wherein the second direction is opposite the first direction.