| 摘要 |
A traveling speed control system for a work vehicle comprises an engine having a variable throttle opening; a hydrostatic transmission driven by the engine, the hydrostatic transmission having a variable output/input speed ratio; a travel mode selecting manipulator for selecting either a work travel mode or a normal travel mode; and an acceleration manipulator for setting a traveling speed of the work vehicle. Increase of the throttle opening during idling, of the engine is prior to increase of the output/input speed ratio for increasing the traveling speed of the work vehicle when the work travel mode is selected, and the increase of the throttle opening prior to the increase of the output/input speed ratio is canceled when the normal travel mode is selected. |
