WORK VEHICLE, AND CONTROL METHOD FOR WORK VEHICLE

摘要

A work vehicle including: a traveling hydraulic pump of a variable displacement type driven by engine; a hydraulic motor forming a closed circuit with the traveling hydraulic pump and driven by operating oil discharged from the traveling hydraulic pump; a drive wheel driven by the hydraulic motor; and a control device determining whether an operator of the work vehicle has an intention of decelerating the work vehicle, and when the operator has an intention of decelerating the work vehicle and when the work vehicle starts to increase its speed, the control device causes a capacity ratio obtained by dividing a capacity of the hydraulic motor by a capacity of the traveling hydraulic pump, to be equal to or larger than a value when the work vehicle starts to increase its speed, according to an increasing amount in the speed of the work vehicle.

主权项

1. A work vehicle including a work machine, the work vehicle comprising:
an engine; a traveling hydraulic pump of a variable displacement type that is driven by the engine; a hydraulic motor that forms a closed circuit with the traveling hydraulic pump and that is driven by operating oil discharged from the traveling hydraulic pump; a drive wheel driven by the hydraulic motor; and a control device that includes a determination unit determining whether or not an operator of the work vehicle has an intention of decelerating the work vehicle, and when the determination unit determines that the operator has an intention of decelerating the work vehicle and when the work vehicle starts to increase a speed of the work vehicle, the control device causes a capacity ratio, which is obtained by dividing a capacity of the hydraulic motor by a capacity of the traveling hydraulic pump, to be equal to or larger than a value at a point when the work vehicle starts to increase the speed of the work vehicle, according to an increasing amount in the speed of the work vehicle.