The construction vehicle includes an engine, an accelerator pedal, a main
pump configured to be driven by the engine, first and second traveling
motors driven by pressured oil discharged from the main pump to generate
driving force for traveling, a driving shaft configured to receive the
driving force from the first traveling motor and the driving force from
the second traveling motor, a clutch configured to switch between
transmission and non-transmission of the driving force from the second
traveling motor to the driving shaft, an accelerator opening degree
detection unit, a vehicle velocity detection unit, and a control unit.
The control unit is configured to determine the switchover velocity
depending on the opening degree of the accelerator pedal, and to control
the clutch when the vehicle velocity that is detected by the vehicle
velocity detection unit reaches the switchover velocity.