Abstract: The invention relates to a method for a model-based determination for processing an order inquiry (AA) by means of a production model (PM) of a film extrusion line (10), comprising the following steps: Capture at least one model parameter (MP) in the form of an output parameter (AP) of the production model (MP) to capture a requested film product property of the order inquiry (AA), Forming a parameter relationship between the detected at least one output parameter (AP) and at least one model parameter (MP) in the form of an input parameter (EP) of the production model (PM) for determining a production situation of the film extrusion line (10), Generating at least one input parameter (EP) of the production model (PM) based on the formed parameter relationship as a default for a production process on the film extrusion line (10).

Abstract: The invention relates to a control method for controlling at least part of a production process of a film extrusion line (10) by means of a production model (PM), comprising the following steps: Acquisition of at least one model parameter (MP) in the form of an output parameter (AP) of the production model (PM) for the acquisition of a film product situation, Determining a difference value (DW) between the at least one sensed output parameter (AP) and a correlating set point (OW), Forming a parameter relationship between the determined difference value (DW) and at least one model parameter (MP) in the form of an input parameter (EP) of the production model (PM), Generating at least one control value (TW) as a default for the at least one input parameter (EP) of the formed parameter relationship.

Abstract: The invention relates to a method for a model-based determination of model parameters (MP) of a production model (PM) of a film extrusion line (10), comprising the following steps: Detection of at least two model parameters (MP) in the form of input parameters (EP) of the production model (PM) for detecting a production situation of the film extrusion line (10) and/or in the form of output parameters (AP) of the production model (PM) for detecting a film product situation of the film extrusion line (10), Forming a parameter relationship between the acquired model parameters (MP) by means of the production model (PM), Determining at least one further model parameter (MP) in the form of a non-detected input parameter (EP) and/or a non-detected output parameter (AP) of the production model (PM).

Abstract: The invention relates to a method for a model-based optimization of a film product during a production on a film extrusion line (10) by means of a production model (PM) of the film extrusion line (10), comprising the following steps: Acquisition of at least two model parameters (MP) in the form of input parameters (EP) of the production model (PM) for predicting a production situation of the film extrusion line (10) and/or in the form of at least two model parameters (MP) in the form of output parameters (AP) of the production model (PM) for predicting a film product situation of the film extrusion line (10), Forming a parameter relationship between the acquired model parameters (MP) by means of the production model (PM), Prioritize at least one model parameter (MP) of the production model (PM) for optimization, Modifying at least one non-prioritized model parameter (MP) of the production model (PM) based on the formed parameter relationship to optimize the prioritized model parameter (MP).