METHOD AND ELECTRONIC DEVICE FOR FINDING THE OPENING POINT FOR A REGULATED ELECTROPNEUMATIC VALVE OF A PNEUMATIC ACTUATING DRIVE

A method and an electronic device are disclosed, for finding an opening point for an electropneumatic valve, which method or electronic device can be used in a closed control loop for position regulation of a switching element of a pneumatic actuating drive for a fitting which can be operated thereb...

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Bibliographische Detailangaben
1. Verfasser:	KRESSE HEIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A method and an electronic device are disclosed, for finding an opening point for an electropneumatic valve, which method or electronic device can be used in a closed control loop for position regulation of a switching element of a pneumatic actuating drive for a fitting which can be operated thereby. An exemplary method can include: a) energizing the electropneumatic valve by a drive signal which corresponds to an estimated opening point; b) measuring control-loop characteristics for this drive signal by using sensors to detect movement of the switching element; c) if determined control-loop characteristics for a present opening point do not correspond to nominal presets, then varying the drive signal based on an evaluation result to produce a better-matched opening point, and the finding process then starts again with step a).