Abstract: During operation of a rolling mill, a rolling product running through the mill is machined by a machining device which is controlled by a controller, to which a target and an actual value of the roll product are fed after machining. The controller determines based on the target and the actual value, in conjunction with controller characteristic, a controlled variable for the machining device and outputs the controlled variable to the machining device which machines the roll product according to the output controlled variable. A detection device receives the actual value after machining and a corresponding actual value of the mill product before machining. Based on the temporal profiles of the actual values, the device dynamically determines the controller characteristic such that the variance of the actual value at least tends to be minimized after machining. The device also parameterizes the controller according to the determined control characteristic.

Abstract: During operation of a rolling mill, a rolling product running through the mill is machined by a machining device which is controlled by a controller, to which a target and an actual value of the roll product are fed after machining. The controller determines based on the target and the actual value, in conjunction with controller characteristic, a controlled variable for the machining device and outputs the controlled variable to the machining device which machines the roll product according to the output controlled variable. A detection device receives the actual value after machining and a corresponding actual value of the mill product before machining. Based on the temporal profiles of the actual values, the device dynamically determines the controller characteristic such that the variance of the actual value at least tends to be minimized after machining. The device also parameterizes the controller according to the determined control characteristic.