Controlsoft, Inc.

John T Nagle

Shahid Parvez

Coleman B Brosilow

Irving Lefkowitz

Tien-Li Chia

Alireza Haji-Valizadeh

Various methods and systems for the parametric control of a process include representing the process with a process model used to generate future predictions of a process variable. In one embodiment, the process exhibits integrating behavior that is represented by a non-integrating process model. In another embodiment, an inverse of the model is filtered using a filter that includes a lead time constant that is selected to minimize a steady state error of the predicted process variable. In yet another embodiment, an array of output model values is revised or reindexed in response to a change in a time-varying parameter related to the process.

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Willowick, OH, United States of America

John T Nagle