Method for controlling a casting process, control system for a casting process, apparatus and computer program

A method for temperature controlling a casting process comprising:

• control of at least one input variable indicative of at least one input value of the casting process depending on at least one output variable indicative of at least one temperature of the casting process in such a way that a temperature difference between the temperature of the casting process and a preset temperature profile is minimized,
• wherein the control of the at least one input variable is based on a model predictive control,
• the model predictive control comprises a model,
• the model is identified and/or adapted on the basis of a data set, the data set having data indicative of the at least one input variable and the at least one output variable, and
• a correlation between the at least one input variable and the at least one output variable is determined by means of the model based on the data set,
• the at least one input variable is a flow rate of a coolant, a temperature of a coolant, a duration of a casting cycle, a quantity of a mold filling, a composition of a mold filling, a temperature of a mold filling, a time of a mold filling, a temperature of a heating source and/or a heating rate of a heating source,
• the data set comprises historical data, the data set being extended by data recorded during the carrying out of the casting process,
• the model predictive control comprises a Kalman filter,
• the state of the casting process, is calculated by means of the Kalman filter model
• the model-predictive control further takes into account a filling of the mold as a measured disturbance variable and the correlation of the disturbance variable to the at least one input variable and/or the at least one output variable based on the dynamic model,
• the model predictive control predicts different trajectories of the at least one output variable by means of the state calculated by the Kalman filter model, and
• the model predictive control is used to control the at least one input variable in such a way that a predicted trajectory of the output variable is set which is indicative of a minimum temperature difference between the temperature of the casting process and the preset temperature profile.