METHOD FOR OPERATING A HYDRAULIC ACTUATOR, ESPECIALLY A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE

Method for operating the hydraulic actuator of a combustion engine valve in which the to determine the actual operating behavior of the actuator (26) the work space (60) of the actuator is temporarily connected to a hydraulic fluid accumulator (80). The resultant pressure drop in the accumulator is...

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Bibliographische Detailangaben
Hauptverfasser:	SCHWEIGGART, HUBERT, GROSSE, CHRISTIAN, PISCHKE, ULF, GAESSLER, HERMANN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINE PLANTS IN GENERAL FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Method for operating the hydraulic actuator of a combustion engine valve in which the to determine the actual operating behavior of the actuator (26) the work space (60) of the actuator is temporarily connected to a hydraulic fluid accumulator (80). The resultant pressure drop in the accumulator is measured and, based on the known geometrical parameters of the actuator, the current stroke position of the actuator is determined and at least a measurement pair of opening time and stroke of an actuator element (58) determined. The invention also relates to a corresponding computer program for method implementation, a control and or regulation unit for a combustion engine and a combustion engine, especially for a motor vehicle.