Patent ID: 6081661
Filing Date: 2000-06-27
Classification: G05B,Y10S

Abstract:
A command value decision unit for use in constructing and controlling a plant model to reduce operation expenses comprising:fuel consuming characteristic model generator for generating a fuel consuming characteristic model for each one of a plurality of interlinked plants, said model taking account of hysteresis characteristics of each of said plants;output decision model generator for generating a static output decision model of each of said plants by extracting from said fuel consuming characteristic model items that affect a fuel consumption only at a present time;a differentiator for differentiating said output decision model of each of said plants by an output of each of said plants; andcommand value calculator for calculating an output of each of said plants under conditions that a sum total of the outputs of the plants at the present time coincides with an estimated load amount, and that derivatives obtained by said differentiator coincide with one another, and for setting each one of calculation results as an output command value of each of said plants, wherein said output command value is used in constructing and controlling a plant model.