| 摘要 |
PURPOSE:To control action speed of each actuator of both hydraulic pumps always favorably by finding each control out of a plurality of variable capacity type hydraulic pump individually on the basis of the selecting signal of a work mode and the operating signal of an operating device, and outputting each control signal to a plurality of regulator individually. CONSTITUTION:When a work mode selecting switch 12 is operated, a prescribed selecting signal b is inputted to the input unit 9b of a control device 9, and a corresponding map is read out from a memory unit 9a by a calculating unit 9c. On the other hand, when a boom lever 10a or a turning lever 11a is operated, each of lever displacement signals a1, a2 is outputted from each of lever displacement detecting means 10b, 11b, and it is inputted in an input unit 9b. In the calculating unit 9c, each intake torque of both first and second variable capacity type hydraulic pumps 1, 2 is found out on the basis of a map and each of lever displacement signals a1, a2, and also each of control signal c1, c2 is found out to match each swash plate inclining angle of both pumps 1, 2 with each absorptive torque. It is thus possible to control both first and second regulators 3, 4 individually. |
