U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Multi-region fuzzy logic control system with auxiliary variables

Patent 6041320 Issued on March 21, 2000. Estimated Expiration Date: Icon_subject March 21, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Fuzzy control system for automatic transmission
Patent #: 4841815
Issued on: 06/27/1989
Inventor: Takahashi

Fuzzy inference-based digital control method and apparatus
Patent #: 5012430
Issued on: 04/30/1991
Inventor: Sakurai

Image formation condition controlling apparatus based on fuzzy inference
Patent #: 5029314
Issued on: 07/02/1991
Inventor: Katsumi, et al.

Method and apparatus of automatically setting PID constants
Patent #: 5043862
Issued on: 08/27/1991
Inventor: Takahashi, et al.

Method and system for process control with complex inference mechanism
Patent #: 5051932
Issued on: 09/24/1991
Inventor: Inoue, et al.

Preemptive constraint control
Patent #: 5091844
Issued on: 02/25/1992
Inventor: Waltz

Neural network/expert system process control system and method
Patent #: 5121467
Issued on: 06/09/1992
Inventor: Skeirik

Self-tuning controller apparatus and process control system
Patent #: 5153807
Issued on: 10/06/1992
Inventor: Saito, et al.

Combustion control apparatus for a coal-fired furnace
Patent #: 5158024
Issued on: 10/27/1992
Inventor: Tanaka, et al.

Self-monitoring tuner for feedback controller
Patent #: 5159547
Issued on: 10/27/1992
Inventor: Chand

More ...

Inventors

Assignee

Application

No. 110506 filed on 08/23/1993

US Classes:

706/1FUZZY LOGIC HARDWARE

Examiners

Primary: Hafiz, Tariq R.

Attorney, Agent or Firm

International Class

G06F 015/18

Abstract

A fuzzy control system for industrial process control utilizes an auxiliary process variable to determine which of several regions of different gain a non-linear process is operating. Based upon that determination and fuzzy input signals, the fuzzy controller provides a process control signal which corresponds to that region.

Other References

  • ISA Conference and Exhibition on Industrial Automation, "Supervisory Hierarachical Intelligent Control For Medical and Industrial Systems", by D.A. Linkens and M.F. Abbod, Jun. 1992, pp. 1.21-1.24
  • ATP Automatisierungstechnische Praxis, "Automation Concepts Based on Fuzzy Control and Classical Control Theory", vol. 35, No. 6, By R. Schreiber and K. Zinser, Jun. 1993, pp. 349-354
  • AT Automatisierungstechnik, vol. 41, No. 5, By J. Boll, M. Hottecke and F. Dorrscheidt, May 1993, pp. 145-151
  • Proceedings of the 1992 IEEE International Symposium on Intelligent Control, by D.A. Linkens, J.S. Shieh, Aug. 1992, pp. 210-215
  • Transactions of the Institute of Measurement and Control, "Supervisory Intelligent Control Using A Fuzzy Logic Hierarchy", vol. 15, No. 3, By D.A. Linkens and M.F. Abbod, 1993, pp. 112-132
  • Fuzzy Control Theory: A Nonlinear Case, Ying et al., Automatica, 26(3) pp. 513-520 (1990)
  • A New Fuzzy Gain Scheduling Algorithm for Process Control, Ling et al., pp. 2284-2290 1992 AC/TP3
  • An Introduction Survey of Fuzzy Control, Sugeno, Information Sciences 36, pp. 59-83 (1985)
  • Bouslama, F. et al., Application of Limit Fuzzy Controllers to Stability Analysis, Jul. 27, No. 2, pp. 103-120
  • Kim, Seung-Woo et al., "Fuzzy Compliance Robot Control Using Multi Rule-Base", IEEE International Conference on Fuzzy Systems, Mar. 8-12, 1992, San Diego, California, pp. 1343-1348
  • Tsuneo et al, "highly-reliable semi-autonomous vehicle control on lattice lane"; IEEE International Workshop on Intelligent Robots and Systems 90'; p. 731-8 vol. 2; Jul. 3-6, 1990
  • Smith et al, "self-tuning of a fuzzy logic controller using a cell state space algorithm"; 1990 IEEE International Conference onSystems, Man and Cybernetics Conference Proceedings; p. 445-50, Nov. 4-7, 1990
  • Han et al, "Two-layer multiple-variable fuzzy logic controller"; IEEE Transactions on Systems, Man and Cybernetics, vol. 23, iss. 1 p. 277-85; Jan.-Feb. 199
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?