主权项 |
1. A work vehicle, comprising:
an engine; a cooling fan; a hydraulic pump configured to be driven by the engine; a hydraulic motor configured to be driven by means of an operating oil discharged from the hydraulic pump and configured to rotate the cooling fan; an electromagnetic proportional control valve configured to regulate an amount of the operating oil to be supplied to the hydraulic motor; a rotation sensor configured to detect a fan rotation speed of the cooling fan; and a control unit configured to set a current value for driving the electromagnetic proportional control valve based on a set of current value information indicating a correspondence between the fan rotation speed and the current value, wherein the control unit is configured to correct the set current value based on the fan rotation speed detected by the rotation sensor, the set of current value information has first and second current value ranges in each of which the fan rotation speed is increased or reduced in accordance with the current value, the first current value range and the second current value range are continuous to each other, and an absolute value of a ratio of an increase or reduction amount of the fan rotation speed with respect to an increase or reduction amount of the current value is less in the second current value range than in the first current value range. |