Patent ID: 9086127
Filing Date: 2015-07-21
Classification: B60W,F16H,Y10T

Abstract:
1. A method for performing a shuttle shift with a continuously variable transmission of a work machine, the continuously variable transmission including a hydrostatic power unit, the method comprising: adjusting a swash plate angle of the hydrostatic power unit 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, including adjusting the swash plate angle of the hydrostatic unit by at least one of: (a) temporarily in the first direction after the initiation of the directional swap before adjusting in a second direction; or (b) 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.