| 摘要 |
<p>A traveling working vehicle in which an ordinary engine is used to improve fuel consumption while achieving a sufficient quantity of work with heavy loading and in addition engine output distribution can have flexibility. A torque control regulator (26) performs control so that suction torque of a hydraulic pump (22) does not exceed a predetermined maximum suction torque and an accelerator pedal (12) issues a command of a target rotation speed of an engine (1). Rotation speed deviation calculation section (52, 62), a correction torque calculation section (53), a correction rotation-speed calculation section (63), speed ratio calculation sections (54, 64), traveling condition determination sections (55, 65), work condition determination sections (56, 66) determine operating conditions of a traveling working vehicle. The correction torque calculation section (53), the correction rotation-speed calculation section (63), selection sections (57, 67), multiplication sections (58, 68), addition sections (59, 69) correct, according to the result of the determination, both pump base torque and the target rotation speed of the engine (1) that used to obtain the maximum suction torque of the hydraulic pump (22).</p> |
