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 Title: |
US5983144:
System and method for tuning look-ahead error measurements in a rail-based transportation handling controller
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Bonissone, Piero Patrone; Schenectady, NY
Chen, Yu-To; Niskayuna, NY
Khedkar, Pratap Shankar; Niskayuna, NY
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| Assignee: |
General Electric Company, Schenectady, NY
other patents from GENERAL ELECTRIC COMPANY (218550) (approx. 30,796)
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| Published / Filed: |
1999-11-09
/ 1997-12-29
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| Application Number: |
US1997000999201
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| IPC Code: |
IPC-7:
G06F 165/00;
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| U.S. Class: |
Current:
701/019;
246/182.R;
700/050;
701/020;
Original:
701/019;
701/020;
364/148.05;
246/182.R;
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| Field of Search: |
701/001,19,20,70
246/2 R,6,182 R,182 A,182 B,182 AB
364/148.01,148.05,153
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| Priority Number: |
| 1997-12-29 |
US1997000999201 |
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| Abstract: |
In this invention there is disclosed a system and method for tuning look-ahead error measurements that is used to improve the train handling performance of a rail-based transportation system. A look-ahead error module along with a fuzzy logic controller is synthesized to ensure that a train simulator complies to a prescribed speed limit over a specified track profile while providing a smooth ride. A genetic algorithm is used to adjust the parameters of the look-ahead error module.
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| Attorney, Agent or Firm: |
Goldman, David C. ;
Breedlove, Jill M. ;
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| Primary / Asst. Examiners: |
Chin, Gary;
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 16 claims |
We claim:
1. A system for tuning look-ahead error measurements in a rail-based transportation handling controller, comprising:
- a velocity profiler containing a predetermined velocity profile for operating a rail-based transportation system over a specified track profile;
- a train simulator for simulating an operation of the rail-based transportation system over the specified track profile;
- a look-ahead error module, responsive to the velocity profiler and the train simulator, for determining look-ahead error for the rail-based transportation system;
- a tuner, coupled to the train simulator and the look-ahead error module, for optimizing said look-ahead error determined by the look-ahead error module; and
- a fuzzy logic controller for controlling the handling of the train simulator in accordance with said look-ahead error determined by the tuned look-ahead error module, the fuzzy logic controller tracking said look-ahead error and change in said look-ahead error and providing a control action to the train simulator that minimizes the look-ahead error.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 6 U.S. patent(s) that reference this one
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| Foreign References: |
None
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| Other References: |
"Genetic Algorithms for Automated Tuning of Fuzzy Controllers: A Transportation Application" by Piero P. Bonissone, et al, Fifth IEEE International Conference on Fuzzy Systems, Sep. 1996, New Orleans, LA, pp. 674-680.
"Automated Fuzzy Knowledge Base Generation and Tuning" by DG Burkhardt, et al, 1992 IEEE, San Diego, CA, pp. 179-188.
"A Classified Review on the Combination Fuzzy Logic-Genetic Algorithms Bibliography" by O. Cordon, et al, Research Report DESCAI95129, Dept. of Computer Science and AI, Universidad de Granada, Granada, Spain, 1995, 21 pages.
"Tuning Fuzzy Logic Controllers by Genetic Algorithms" by F. Herrera, et al, Int. Journal Approximate Reasoning (IJAR), vol.12, Numbers 3/4, Apr./May 1995, pp.-299-315.
(17 pages)
Cited by 6 patents
[ISI abstract]
"Fuzzy Control of pH using Genetic Algorithms"by CL Karr, et al, IEEE Transactions on Fuzzy Systems, vol. 1. No. 1, Feb. 1993, pp. 46-53.
"Modifications of Genetic Algorithms for Designing and Optimizing Fuzzy Controllers" by J. Kinzel, et al, 1994 IEEE Conference on Evolutionary Computation, Orlando, FL, vol. 1, pp. 28-33.
"Fuzzy Identification of Systems and Its Applications to Modeling and Control" by T. Takagi, et al, IEEE Trans. on Systems, Man and Cybernetics, vol. SMC-15, No. 1, 1985, pp. 116-132.
(17 pages)
Cited by 9 patents
"A Practical Guide to Tune of Proportional and Integral (PI) Like Fuzzy Controllers" by L. Zeng, 1992 IEEE Conference on Fuzzy Systems, San Diego, CA, pp. 633-640.
"Design of an Adaptive Fuzzy Logic Controller Using a Genetic Algorithm" by CL Karr, In Proc Int. Conf on Genetic Algorithms (ICGA '91), vol. 1, pp. 450-456, San Diego, CA 1991.
"Integrating Design States of Fuzzy Systems Using Genetic Algorithms", by MA Lee, et al, IEEE Trans. on Systems, Man and Cybernetics, vol. SMC-15, No. 1, 1985, pp.116-132.
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