Application of optimal regulator with time delay to temperature control for thixoforming system

N. Kumazawa, H. Ichihara, N. Abe, Y. Fukui, H. Okada

Research output: Contribution to journalConference article


An optimal feedback law minimizing an objective function including memories of states is proposed. It was not clear how to select the design parameters using the control law. In this paper, we describe a stabilized parameter domain of the proposed optimal regulator and apply the pair of parameters to the controller, which is adapted to a thixoforming system in which temperature is regulated. The control law is confirmed to have performed well from the numerical and experimental results.

Original languageEnglish
Pages (from-to)311-316
Number of pages6
JournalIFAC Proceedings Volumes (IFAC-PapersOnline)
Issue number19
Publication statusPublished - 1 Jan 2003
Event4th IFAC Workshop on Time Delay Systems, TDS 2003 - Rocquencourt, France
Duration: 8 Sep 200310 Sep 2003



  • Delayed Feedback
  • Functionally Graded Material
  • Optimal Regulator
  • Temperature Control
  • Thixoforming
  • Time Delay

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