Load control device for engine of work vehicle

A load control device for an engine of a work vehicle in which an output of the engine is transmitted to a drive wheel, and the output of the engine is transmitted to a work machine through a variable displacement hydraulic pump, comprising:

• absorption torque changing means for changing absorption torque for the variable displacement hydraulic pump;
• acceleration state determination means for determining whether the work vehicle is in an acceleration state, said acceleration state determination means having acceleration detection means for detecting acceleration of the work vehicle;
• and means for determining whether the acceleration of the work vehicle detected by the acceleration detection means is a threshold value or over wherein the threshold value is changed into a magnitude corresponding to a selected running mode in accordance with a type of running mode selected by a running mode selection means;
• and
• control means for, when it is determined by the acceleration state determination means that the work vehicle is in the acceleration state, lowering the absorption torque for the variable displacement hydraulic pump.