1. A model calculation unit for calculating a data-based function model in a control unit, comprising: at least one processor core which includes: a multiplication unit for carrying out a multiplication in hardware; an addition unit for carrying out an addition in hardware; an exponential function unit for calculating, in hardware, exclusively only an exponential function; a memory in the form of a configuration register for storing hyperparameters and node data of the data-based function model to be calculated; and a logic circuit for controlling, in hardware, a calculation sequence in the multiplication unit, the addition unit, the exponential function unit and the memory in order to calculate the data-based function model; wherein the function model assigns a model value to multiple input variables, and wherein the logic circuit is configured to control, in hardware, the calculation sequence to (i) carry out a multiplication and an addition for a calculation of an input standardization of the input variables, and (ii) carry out a multiplication and an addition for a calculation of an output standardization of the output variable.