Method for controlling a function unit with a steering and control device

US5737214A · kind A · utility

Assignee

• ABB PATENT GMBH · DE

Inventors

• Christian Rahder · Dunningen, DE
• Jens Müller · Haan, DE

Key dates

• Filing date: Nov 23, 1994
• Grant date: Apr 7, 1998
• Expiry date: Nov 23, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B13/028
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A method is provided for steering and controlling a functional unit with a steering and control device. The steering and control device includes a plurality of normalizing units, each unit having an input for receiving a respective input variable and being operative for generating a normalized input variable. An analytic controller has a plurality of inputs being equal to at least the plurality of normalizing units, for receiving the normalized input variables, the analytic controller being operative for analytically combining the normalized input variables in accordance with a plurality of knowledge-based control rules to form an actuating variable. A function unit has an input receiving the actuating variable, the function unit being operative for generating a process-controlled variable. The method includes defining the knowledge-based control rules as a plurality of continuous, substantially non-linear mathematical functions; and analytically combining the plurality of the continuous substantially non-linear mathematical functions to form the process-controlled variable.