| 摘要 |
<p>A fluid control system (50) including a variable displacement pump (52) having a load system control (54) and configured to operate in an open center mode. A pump control (56) is operable between a first arrangement (58) and a second arrangement (60). The pump control (56) receives pressurized fluid from a first load sensor pressure in fluid communication with the pump (52) and an actuator return pressure in fluid communication with an actuator (22, 26) configured to operate using pressurized fluid from the system (50), the pump control (56) providing a selective pump control pressure to the pump load system control (54). When the system (50) is operating in a standby mode, the pump (52) operates in a first minimized displacement condition. When the system (50) is in a stall mode, the pump (52) operates in a second minimized displacement condition.</p> |
