Method and device for operating a system for parameter estimation for a differential equation describing a technical system

摘要

The invention relates to a method for operating an arrangement with a technical system, the system behavior of which corresponds to the behavior of a differential equation, with the following steps: Operating the technical system using one or more manipulated variables that are determined based on a mathematical model with a non-linear differential equation where the mathematical model takes one or more model parameters of a parameter vector into account; - Adapting the parameter vector by: o providing several test parameter vectors (S1); o recording the temporal progressions of measured values of one or more state variables starting from a starting point in time (S2) ; o starting from a system state at the starting point in time with the aid of a Gaussian filter model determined by each of the several test parameter vectors (θ), temporal curves of the one or more state variables are computed (S3); o one or more test parameters vectors (θ) are selected as a function of the temporal progressions of the measured values of the one or more state variables and the determined temporal progressions of the one or more state variables (S4, S5); ando the adapted parameter vector is determined as a function of the one or more selected test parameter vectors (θ) (S6).