Patent ID: 6266605
Filing Date: 2001-07-24
Classification: F02D,G05B

Abstract:
A plant control system for controlling a plant, comprising:an actuator for generating an input to the plant;first detecting means for detecting an output from the plant;manipulated variable determining means for sequentially generating a manipulated variable which manipulates the input to the plant to converge the output from said first detecting means to a predetermined target value;actuator control means for controlling operation of said actuator based on said manipulated variable to manipulate the input to the plant;estimating means for sequentially generating data representing an estimated value of the output from said first detecting means after a dead time of said plant according to a predetermined algorithm constructed based on a model of a behavior of the plant as a system for generating the difference between the output from said first detecting means and said target value with a response delay and the dead time from the difference between the input to the plant and a predetermined reference value, said manipulated variable determining means comprising means for generating said manipulated variable using the data generated by said estimating means; andreference value variable setting means for variably setting said predetermined reference value depending on the manipulated variable generated by said manipulated variable determining means.