Pump controller for construction machine

摘要: The invention provides a pump controller for construction machine that allows an operator to set the maximum speed of specific actuator arbitrarily without altering negative control and acquire smooth operation. comprises plurality valves supply actuators with controlled pressure oil, variable displacement hydraulic plural oil in parallel, center bypass connected parallel valves, restrictor generate negatively controlling installed at terminal end bypass. further sensors recognize operation actuator, sets discharge characteristic individually valve accordance state calculates corresponding using characteristic, controls angle inclination regulator.