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Title: US5806052: Fuzzy hierarchical controller for a turboshaft engine
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Country: US United States of America

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13 pages

 
Inventor: Bonissone, Piero Patrone; Schenectady, NY
Chiang, Kenneth Hsin-Chao; Schenectady, NY
Dausch, Mark Edward; Schenectady, NY
Comly, James Baldwin; Schenectady, NY

Assignee: General Electric Company, Schenectady, NY
other patents from GENERAL ELECTRIC COMPANY (218550) (approx. 30,796)
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Published / Filed: 1998-09-08 / 1994-02-07

Application Number: US1994000192939

IPC Code: Advanced: G05B 13/02;
Core: more...
IPC-7: G06F 15/18;

ECLA Code: G05B13/02C2;

U.S. Class: Current: 706/004; 706/001; 706/003; 706/008;
Original: 706/004; 706/001; 706/003; 706/008;

Field of Search: 395/011,61,900,3,903-904,907 364/132,131,138,414.1,431.05 706/1-9

Priority Number:
1994-02-07  US1994000192939
1992-07-06  US1992000909290

Abstract: A fuzzy logic supervisory control architecture for aircraft engines includes a series of fuzzy proportional integral controllers each designed for a specific operating range and a fuzzy logic hierarchical controller for combining the fuel flow derivative outputs of the individual controllers. The hierarchical controller utilizes fuzzy logic on the input space fuzzified to linguistic values for engine temperature, power turbine speed and spool acceleration to determine a weighting to be given to each of the controller outputs for fuel flow derivative.

Attorney, Agent or Firm: Goldman, David C. ; Snyder, Marvin ;

Primary / Asst. Examiners: Hafiz, Tariq R.;

Maintenance Status: E1 Expired  Check current status

INPADOC Legal Status: Show legal status actions

       
Related Applications:
Application Number Filed Patent Pub. Date  Title
US1992000909290 1992-07-06       


       
Parent Case:     This application is a Continuation of application Ser. No. 07/909,290, filed Jul. 6, 1992, now abandoned.

Family: None

First Claim:
Show all 9 claims
What is claimed is:     1. A control system for controlling a turboshaft or an aircraft engine comprising:
  • a plurality of fuzzy proportional-integral low-level controllers adapted to receive engine signals, each of said fuzzy proportional-integral low-level controllers operable to output a control variable value that is based upon said received engine signals; and
  • a fuzzy logic hierarchical controller connected to said plurality of fuzzy proportional-integral low-level controllers to receive each of said control variable values, said fuzzy logic hierarchical controller being adapted to generate a single output value for each control variable which is used for controlling said aircraft engine, the single output value is an aggregation of said control variable values received from said plurality of fuzzy proportional-integral low-level controllers, wherein the aggregation is a weighted sum of said control values.


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Forward References: Show 8 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (8)   |   Backward references (10)   |   Citation Link

Buy
PDF
Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 25pp US4985824  1991-01 Husseiny et al.   Reliable fuzzy fault tolerant controller
Buy PDF- 13pp US5012430  1991-04 Sakurai  Hitachi, Ltd. Fuzzy inference-based digital control method and apparatus
Buy PDF- 29pp US5095417  1992-03 Hagiware et al.  Kabushiki Kaisha Komatsu Seisakusho Apparatus for carrying out serial control
Buy PDF- 9pp US5161110  1992-11 Dorchak  Atlantic Richfield Company Hierarchical process control system and method
Buy PDF- 47pp US5170357  1992-12 Sasaki et al.  Yokogawa Electric Corporation Paper machine controller for operating slices and method of controlling the same
Buy PDF- 11pp US5204935  1993-04 Mihara et al.  Fuji Xerox Co., Ltd. Programmable fuzzy logic circuits
Buy PDF- 26pp US5213077  1993-05 Nishizawa et al.  Kabushiki Kaisha Toyota Chuo Kenkyusho Gain adjusting device for PID controller for controlling rotational speed of internal combustion engine
Buy PDF- 11pp US5229946  1993-07 Ghaem  Motorola, Inc. Method for optimizing engine performance for different blends of fuel
Buy PDF- 25pp US5249258  1993-09 Hisano  Omron Tateisi Electronics Co. Reasoning computer system
Buy PDF- 21pp US5390117  1995-02 Graf et al.  Siemens Aktiengesellschaft Transmission control with a fuzzy logic controller
       
Foreign References: None

Other Abstract Info: DERABS G98-506246 DERG98-506246

Other References:
  • Michio Sugeno, Toshiaki Murofushi, Junji Nishino, and Hideaki Miwa. "Helicopter Flight Control Based on Fuzzy Logic." Fuzzy Engineering toward Human Friendly Systems: Proceedings of the International Fuzzy Engineering Symposium '91, Nov. 13th-15th, 1991, vol. 2, pp. 1120-1121.
  • P.J. Mac Vicar-Whelan, "Fuzzy Sets for Man-Machine Interaction," International Journal of Man-Machine Studies, vol. 8, pp. 687-697, Nov. 1976.
  • Raju et al, "Adaptive hierarchical fuzzy controller"; IEEE Transactions on Systems, Man and Cybernetics, vol. 23 iss. 4 pp. 973-980, Jul.-Aug. 1993. (20 pages) [ISI abstract]
  • Rueda et al, "Adesign method for a class of fuzzy hierarchical controllers"; Second IEEE International Conference on Fuzzy Systems, pp. 196-199 vol. 1, 28 Mar.-1 Apr. 1993.
  • Isik, C.J. Metstel, A.M.; "Pilot Level of a Hierarchical Controller for an Unmanned Mobile Robot"; IEEE Journal of Robotics & Automation; vol. 4, No. 3, Jun. 1988.
  • Wantanabe, H.; Dettloff, W.D.; Yount, K.E.; "AVLSI Fuzzy Logic Controller with Reconfigurable, Cascadable Architecture"; IEEE Journal of Solid State Circuits; vol. 25 No. 2 Apr. 1990.
  • Raju, G.V.S.; Zhou, J.; "Fuxxy Logic Process Controller"; IEEE International Conference of Systems Engineering; 9-11 Aug. 1990.
  • Kang, H.; Vachstsevanos, G.; "An Intelligent Strategy to Robot Coordination and control"; Procedings of the 29th IEEE Conference on Decision and Control; 5-7 Dec. 1990.
  • Garcia-Benitez, E.; Yurkowich,S.; Passiono, Kim.; "A Fuzzy Supervisor for Flexible Manipulator Control"; Proceedings of the 1991 IEEE International Symposium on Intelligent Controller; 12-15 Aug. 1991.
  • Stover, J.A.; Gibson, R.E.; "Continuos Inference Networks for Autonomous Systems"; IEEE Conference on Neurol Networks for Ocean Engineering; 15-17 Aug. 1991.
  • Yurkovich, S.; Passino, K.M.; Garcia-Benitez, E.; "Rule-Based Tuning for Control of Flexible-Link Manipulators"; Proceedings of the 30th IEEE Conference on Decision and Control. 11-13 Dec. 1991.
  • Tseng, H.C.; Hwang, V.; Lui, S.L.; "Fuzzy Servocontroller: The Hierarchical Approach"; IEEE International Conference on Fuzzy Systems; 8-12 Mar. 1992.


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