Patent ID: 7810323

Claim:
A load control device for an engine of a work vehicle, comprising: a driving wheel; a plurality of variable displacement hydraulic pumps; an engine in which a target speed is set to a value in a range from a low idling speed to a high idling speed, wherein the engine drives the driving wheel via a torque converter and drives the plurality of variable displacement hydraulic pumps; a plurality of hydraulic actuators to which pressure oil discharged from the plurality of variable displacement hydraulic pumps is supplied, wherein the plurality of hydraulic actuators at least activate a work machine; absorption torque changing means for changing absorption torque for one or more of the variable displacement hydraulic pumps; engine speed detection means for detecting an engine speed; and control means for reducing the absorption torque of the variable displacement hydraulic pump when the detected engine speed is decreased to a predetermined threshold value or lower wherein the predetermined threshold value is set to an engine speed at which it is determined that there is a risk that the engine will stall.