Anti-stall system utilizing implement pilot relief

A hydraulic control system for a machine is disclosed. The hydraulic control system may have a source driven by an engine to pressurize fluid, and a tool actuator movable by pressurized fluid. The hydraulic control system may further have a first valve element movable to control an amount of pressur...

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Bibliographische Detailangaben
Hauptverfasser:	SMITH ANDREW J, BACON KEVIN A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic control system for a machine is disclosed. The hydraulic control system may have a source driven by an engine to pressurize fluid, and a tool actuator movable by pressurized fluid. The hydraulic control system may further have a first valve element movable to control an amount of pressurized fluid directed to the tool actuator, and an interface device movable by an operator to control an amount of pressurized fluid directed to move the first valve element. The hydraulic control system may also have a second valve element movable to limit an amount of pressurized fluid available to move the first valve element, and a controller in communication with the second valve element. The controller may be configured to move the second valve element to reduce pressurized fluid directed to the first valve element in an amount related to a load on the engine.