| 摘要 |
A construction vehicle includes a hydraulic pump for travelling driven by an engine and a hydraulic motor for travelling driven by a pressurized oil discharged from the hydraulic pump. A control unit is configured to set an upper limit of a command value of an acceleration opening degree in accordance with a magnitude of a travelling load and a magnitude of a vehicle speed, and to set a lower limit of a displacement of the hydraulic motor for travelling in order to maximize the vehicle speed at the acceleration opening degree limited to a predetermined amount.
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