Abstract: A work vehicle includes a plurality of hybrid instruments, a cooling medium circuit, a radiator, a fan, a variable mechanism, a plurality of sensors, and a fan control unit. The cooling medium circuit communicates with the plurality of hybrid instruments to cause a cooling medium for cooling the plurality of hybrid instruments to circulate through the hybrid instruments. The radiator is connected to the cooling medium circuit. The fan generates cooling wind for cooling the radiator. The variable mechanism is capable of changing the number of rotations of the fan. The plurality of sensors are provided in correspondence with the plurality of hybrid instruments, respectively, each detecting the temperature of a corresponding one of the hybrid instruments. The fan control unit controls the variable mechanism based on the temperatures detected by the plurality of sensors, to control the number of rotations of the fan.

Abstract: A control unit is configured to calculate a target absorption torque of a hydraulic pump at which the engine output torque and the absorption torque of the hydraulic pump match a target matching rotation speed of the engine. The control unit is configured to refer to command data, calculate a command current value corresponding to the target absorption torque, and output a command signal of the calculated value to a pump control device. The control unit is configured to calculate the absorption torque at calibration points at which there is an equilibrium state in which the output horsepower of the engine and the absorption horsepower of the hydraulic pump are matched. The control unit is configured to acquire calibration information including the calculated absorption torque and the command current value output to the pump control device in the equilibrium state, and calibrate the command data based on the calibration information.

Abstract: A control unit is configured to calculate a target absorption torque of a hydraulic pump at which the engine output torque and the absorption torque of the hydraulic pump match a target matching rotation speed of the engine. The control unit is configured to refer to command data, calculate a command current value corresponding to the target absorption torque, and output a command signal of the calculated value to a pump control device. The control unit is configured to calculate the absorption torque at calibration points at which there is an equilibrium state in which the output horsepower of the engine and the absorption horsepower of the hydraulic pump are matched. The control unit is configured to acquire calibration information including the calculated absorption torque and the command current value output to the pump control device in the equilibrium state, and calibrate the command data based on the calibration information.