Patent ID: 7865338

Claim:
A method for dosing a gas or liquid volume flow in a pipe of a regulating path comprising the steps of: providing a regulating variable from the regulating path, said regulating variable corresponding to the effective liquid volume flow, providing a predefined control signal corresponding to the required liquid volume flow, comparing said predefined control signal and said regulating variable and calculating therefrom a regulator output variable, monitoring the regulator output variable by a vibration detection algorithm, if the vibration detection algorithm does not detect vibrations of the regulator output variable feeding said regulator output variable to an actuating device which is actuating a flap or a valve in the pipe for dosing the gas or liquid volume flow if the vibration detection algorithm detects vibrations of the regulator output variable feeding the regulator output variable to an adaptive filter and the adaptive filter suppressing the vibration and generating a control signal with suppressed or damped vibrations of the regulator output variable, feeding the control signal to the actuating device instead of the regulator output variable.