Damping system using a LOLIMOT model to counteract drive train oscillations
AssigneeSiemens Aktiengesellschaft
InventorsJulian Baumann, Thomas Schlegl, Dara Daniel Torkzadeh
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Abstract
A damping device comprises a recording device (4, 7) for determining a mechanical state variable (ΔαMODELL, ΔαIST) reflecting the torsion of a drive train (3) of an internal combustion engine (1), and a control device (2) for controlling an internal combustion engine (1) with a correcting variable as a function of the mechanical state variable (ΔαMODELL, ΔαIST. It is proposed that the mechanical state variable (ΔαMODELL, ΔαIST) be determined by a predictor element (4) that contains a model of the drive train (3) and/or of the internal combustion engine (1).
Claims21
An engine controller with a damping device for suppressing torsional oscillations in the drive train of an internal combustion engine, comprising:
- a recording device for determining a mechanical state variable reflecting the torsion of the drive train, and
- a control device for controlling the internal combustion engine with a correcting variable as a function of the mechanical state variable determine, wherein
- the recording device has a predictor element that contains a model of the drive train and/or of the internal combustion engine and determines the mechanical state variable as the response of the drive train and/or of the internal combustion engine to the correcting variable using the model, said model having adaptable model parameters.
A damping device for suppressing torsional oscillations in the drive train of an internal combustion engine, comprising:
- a recording device for determining a mechanical state variable reflecting the torsion of the drive train, and
- a control device for controlling the internal combustion engine with a correcting variable as a function of the mechanical state variable determined, wherein
- the recording device has a predictor element that contains a model of the drive train and/or of the internal combustion engine and determines the mechanical state variable as the response of the drive train and/or of the internal combustion engine to the correcting variable using the model, said model having adaptable model parameters.
A damping method for suppressing torsional oscillations in the drive train of an internal combustion engine, comprising the steps of:
- calculating a mechanical state variable reflecting the torsion of the drive train,
- controlling of the internal combustion engine with a correcting variable as a function of the mechanical state variable determined, and
- determining of the mechanical state variable as the response to the correcting variable on the basis of a model of the drive train and/or of the internal combustion engine, said model having adaptable model parameters.
Dependencies are inferred from the claim text.