Controlling control element subject to friction, e.g. throttle valve in IC engine of vehicle, involves setting integral part or drive signal value to predefined value leading to normal control element current when mean current rises

摘要

The method involves driving the control element with a drive signal formed by a regulator with at least one integral component (I) depending on a demand value (SOLL) and an actual value (IST). In a mode in which a higher mean current is passing through the control element or a higher drive signal value exists, the integral part (I) or the drive signal value (tau) is set to a predefined value (IMIN,IMAX) leading to a normal current level in the control element. An Independent claim is also included for an arrangement for controlling a control element subject to friction.