Abstract: A control process with temporally cyclically controlled determination of manipulated variables in accordance with a fuzzy logic improves the control process by providing an improved reaction to changes to the input variable. In the control process of the invention, a fictitious, probable input variable of the next following cycle is determined. This probable input value is considered in the determination of the manipulated variable. In this way, account is taken of a probable development of the input variable and appropriate action is taken in advance on the manipulated variable. The consideration of an extrapolated future, fictitious input variable value is possible, since control loops with fuzzy controllers are not inclined to show a resonance behavior between control variable and manipulated variable, as is usual with conventional controlled systems.