| 摘要 |
PURPOSE: A hydraulic pump controller of an excavator is provided to precisely control the flux of the pump. CONSTITUTION: A first detector(32-1) detects a high signal pressure during pilot signal pressures to be generated from remote control valves to control first operators. A second detector(32-2) detects a high signal pressure during pilot signal pressures to be generated from remote control valves to control second operators. A third detector(32-3) detects a high signal pressure during pilot signal pressures to be generated from remote control valves to control third operators. First, second and third transducers(34a,34b,34c) convert the detected signal pressures to electric signals. A control unit(35) feeds the highest signal value among the electric signals of the first and the second transducers to a pump regulator(3) of a first hydraulic pump(1) as a control signal. The control unit feeds the highest signal value among the electric signals of the second and the third transducers to a pump regulator(4) of a second hydraulic pump as a control signal. Thereby, the structure is simplified and a pump is controlled more precisely.
|
