| 摘要 |
<p>A traveling working vehicle which can improve fuel economy while ensuring a work rate in heavy-load work by using an ordinary engine, and which can obtain flexibility in distribution of an engine output. A torque control regulator 26 controls an absorption torque of a hydraulic pump 22 to be kept not exceeding a preset maximum absorption torque, and an accelerator pedal 12 commands a target revolution speed of an engine 1. Revolution speed deviation computing sections 52 and 62, a modification torque computing section 53, a modification revolution speed computing section 63, speed ratio computing sections 54 and 64, traveling state determining sections 55 and 65, and working state determining sections 56 and 66 determine an operating state of the traveling working vehicle. The modification torque computing section 53, the modification revolution speed computing section 63, selectors 57 and 67, multipliers 58 and 68, and the adders 59 and 69 modify both a pump base torque to obtain the maximum absorption torque of the hydraulic pump 22 and the target revolution speed of the engine 1 depending on the determination result of the state determining means.</p> |
