CONTROL UNIT FOR A HYDRAULIC SYSTEM

A control unit for a hydraulic system includes a hydraulic actuator including an actuator chamber the hydraulic actuator including a first actuator portion and a second actuator portion wherein the first actuator portion can move relative to the second actuator portion, the actuator chamber being in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VIGHOLM, Bo, LILLEMETS, Johan
Format:	Patent
Sprache:	eng ; fre ; ger
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 control unit for a hydraulic system includes a hydraulic actuator including an actuator chamber the hydraulic actuator including a first actuator portion and a second actuator portion wherein the first actuator portion can move relative to the second actuator portion, the actuator chamber being in fluid communication with a flow rale control arrangement adapted to control a rate of flow from the actuator chamber. The control unit is adapted to receive a load signal indicative of the magnitude of the load applied to the hydraulic actuator, receive a requested speed signal indicative of a desired relative movement speed between the first actuator portion and the second actuator portion in a direction that reduces the chamber volume, and based on the load signal and the requested speed signal, issue a control signal to the flow rate control arrangement indicative of a desired flow rate from the actuator chamber.