Flatness based control of an injection moulding machine

Abstract

This contribution deals with the modelling and control of an injection moulding process. In injection moulding especially the appearance of a work piece depends much on the exact compliance with certain trajectories of temperature or pressure in the mould. First a mathematical is presented, which turns out to be input to state linearisable resp. differentially flat. So trajectory planning is easily feasible and a flatness based controller is presented. Since the parameters of the process depend on the actual form of the work piece and the several pieces which are manufactured on one machine differ from each other an automatic identification of the interesting parameters is desirable. © 2013 Springer-Verlag Berlin Heidelberg.