| 摘要 |
PROBLEM TO BE SOLVED: To provide a work vehicle which can travel with low fuel consumption in a light load and can improve the working efficiency.SOLUTION: In a case where ON of a mode is selected by selection means for selecting ON/OFF of the mode allowing reduction of the engine rotation speed from the target engine rotation speed, and a load detected by engine load detection means is a light load, control means controls engine rotation speed change means and transmission means changing the transmission ratio of an infinite variable-speed drive so as to reduce the engine rotation speed from the target engine rotation speed within a range of a change amount set by engine rotation speed change amount setting means while maintaining a constant vehicle speed. In a case where ON of the mode is not selected by the selection means, the control means controls the engine rotation speed change means and the transmission means so as to maintain the constant vehicle speed without reducing the engine rotation speed from the target engine rotation speed even if the load detected by the engine load detection means is the light load.SELECTED DRAWING: Figure 3 |
