Patent ID: 7460944
Filing Date: 2008-12-02
Classification: F02D

Abstract:
1. A damping device for suppressing torsional oscillations in a drivetrain of an internal combustion engine, comprising: an adaptable device for determining a mechanical state model variable reproducing a torsion of the drivetrain comprising a predictor element that contains a model of the drivetrain and the internal combustion engine and determines the mechanical state model variable as a response of the drivetrain and the internal combustion engine to a control variable on the basis of the model, and an actuator for activating the internal combustion engine depending on the control variable, wherein the control variable is determined by a predefined set variable and said mechanical state model variable, a measuring device measuring a mechanical state variable of said drivetrain and the internal combustion engine; and an adaptation unit operable to adapt said adaptable device, wherein said adaptation unit receives the difference between said mechanical state variable and a time delayed mechanical state model variable.