Patent ID: 7096075

Claim:
A physical state control purpose information computation apparatus which computes information used by a physical state controller, a control time period of a finite length being divided into a plurality of consecutive time divisions, the physical state controller controlling a physical state of a control-processing-object material, a limited physical state range relating to the physical state of the control-processing-object material being set in each time division, the physical state controller changing the physical state of the control-processing-object material at a rate within the corresponding limit control rate range and simultaneously controlling the physical state of the control-processing-object material so that the physical state of the control-processing-object material is within the limited physical state range in the time division, said apparatus comprising: time-division-basis reachable physical state range computation means of computing a reachable physical state range reachable by the time the given time division ends on the basis of the physical state control range at the beginning of the given time division and the limit control rates of the physical state controller; time-division-basis physical state control range computation means of computing a physical state control range at the beginning of the time division next to the given time division on the basis of the reachable physical state range at the end of the given time division and the limited physical state range in the next time division; and overall physical state control range computation means of designating the time divisions in order from the first time division to the last time division in the control time period and making each of said time-division-basis reachable physical state range computation means and said time-division-basis physical state control range computation means repeat executing its processing to obtain physical state control ranges at the beginnings of all the time divisions.