WORKING VEHICLE AND METHOD FOR CONTROLLING WORKING VEHICLE

PROBLEM TO BE SOLVED: To provide a working vehicle and a method for controlling a working vehicle where the lowering of operability can be suppressed and a fuel cost reduction effect can be improved.SOLUTION: The working vehicle includes a control unit 10. The control unit 10 determines whether or not a low load condition indicating that the vehicle is in a low-load state is satisfied. When the low load condition is satisfied, the control unit 10 controls an engine 21 so that the upper limit of the output torque of the engine 21 becomes lower than that when the low load condition is not satisfied. The control unit 10 changes the amount of reduction in the upper limit of the output torque of the engine 21 when the low load condition is satisfied according to at least one among the detected vehicle speed, the acceleration of the vehicle, and the acceleration of the engine rotation speed, and the change of the detected engine rotation speed.