Patent ID: 7069904

Claim:
A method for closed-loop speed control of an internal combustion engine, comprising the steps of: computing a first filtered actual speed (nM 1 (IST)) from an actual speed (nM(IST)) of the internal combustion engine by means of a first filter; computing a first control deviation (dR 1 ) from a set speed (nM(SL)) of the internal combustion engine and the first filtered actual speed (nM 1 (IST)); determining a power-determining signal (ve) for automatically controlling the speed of the internal combustion engine from the first control deviation (dR 1 ) by means of a speed controller; computing a second filtered actual speed (nM 2 (IST)) from the actual speed (nM(IST)) of the internal combustion engine by means of a second filter; computing a second control deviation (dR 2 ) from the set speed (nM(SL)) and the second filtered actual speed (nM 2 (IST)); and, when a dynamic change of state occurs, determining the power-determining signal (ve) for the closed-loop speed control of the internal combustion engine with the speed controller from the first control deviation (dR 1 ) and the second control deviation (dR 2 ).