| 摘要 |
A shovel according to an embodiment of the present invention comprises an engine (11) which is provided with a supercharger (11a), a main pump (14) which is coupled to the engine (11), a hydraulic actuator (1A, 1B, 2A, 7, 8, 9) which is driven by operating oil discharged by the main pump (14), and a controller (30) which controls the absorption horsepower of the main pump (14). The controller (30) increases the supercharging pressure of the supercharger (11a) by increasing the absorption horsepower of the main pump (14) before the hydraulic load of the hydraulic actuator (1A, 1B, 2A, 7, 8, 9) increases. |
