Method and device for post-adaption of a data-based function model

An arithmetic unit configured for post-adaption of an at least partially data-based function model which corresponds to a sum of a data-based basis function model and an additive fault model, comprising:

• means for providing the data-based basis function model;
• means for recording training data;
• means for ascertaining the additive fault model based on difference training data which represent differences between measured values of the training data and the function values of the data-based basis function model at measuring points of the training data;
• and
• means for modifying at least one of the training data and the additive fault model so that function values of the data-based basis function model remain within a predefined adaption range.

A non-transitory computer-readable data storage medium storing a computer program having program codes which, when executed on a computer, performs a method for post-adaption of an at least partially data-based function model which corresponds to a sum of a data-based basis function model and an additive fault model, the method comprising:

• providing the data-based basis function model;
• recording training data;
• ascertaining the additive fault model based on difference training data which represent differences between measured values of the training data and the function values of the data-based basis function model at measuring points of the training data;
• and
• modifying at least one of the training data and the additive fault model so that function values of the data-based basis function model remain within a predefined adaption range.