Method for Actuating a Valve Device on the Basis of a Characteristic Curve

• Main Authors: Novak, Rainer, Terwart, Markus, Friederich, Dirk
• Format: Patent
• Language: English
• Published: 13.06.2019
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

A method for actuating a valve device as a function of a characteristic curve including actuating the valve device with a dither superimposed on a target value (i_EDS) with such a frequency that the operating condition of the valve device follows the actuation corresponding to the characteristic curve (v_kk). The method further includes determining, with the characteristic curve (v_kk), the output values ("1", x) which correlate with the target values (i_EDS) at inflection points of a harmonic oscillation impressed upon the valve device with the dither, and determining further output values as a function of the output values ("1", x). The amplitude of the dither is predefined such that, during an actuation of the valve device, one of the inflection points lies in a first or second characteristic curve range (v_kk1 or v_kk3, v_kk3 or v_kk5), and another inflection point lies in a third characteristic curve range (v_kk2 or v_kk4).