Method for controlling an automated clutch
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsChristian Rieger, Jürgen Eich, Robert Fischer, Jürgen Gerhart, Mario Jung, Holger Stork
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Abstract
An automated clutch of a motor vehicle is controlled according to a method with the steps: a) determining a first engine rpm-gradient signal (dnm(M)/dt) based on an engine torque signal (Me) and a target value (Mk) of the clutch torque; b) determining an engine rpm-rate signal (nm(R)) based on the engine rpm-gradient signal from step a); c) comparing an actual engine rpm-rate (nm) to the engine rpm-rate signal (nm(R)) from step b) and determining a correction quantity K based on the comparison; and d) correcting the first engine rpm-gradient signal (dnm(M)/dt) with the correction quantity K.
Claims20
A method for controlling an automated clutch of a motor vehicle having an engine with a crankshaft and a transmission with a transmission input shaft and a transmission output shaft, wherein the automated clutch is arranged to transmit a clutch torque between the crankshaft and the transmission input shaft, and wherein during at least one operating phase of the vehicle, the automated clutch is controlled dependent on an engine rpm-gradient (dnm/dt), the method comprising:
- a) determining a first engine rpm-gradient signal (dnm/dt) based on an engine torque signal (Me) and a target value (Mk) of the clutch torque;
- b) recursively determining an engine rpm-rate signal (nm(R)) based on said engine rpm-gradient signal;
- c) comparing an actual engine rpm-rate (nm) to said engine rpm-rate signal (nm(R)) and determining a correction quantity K based on said comparison;
- and
- d) correcting said first engine rpm-gradient signal (dnm(M)/dt) with said correction quantity.
Dependencies are inferred from the claim text.