Boots – shoes – and leggings
Patent
1993-03-09
1996-01-02
Downs, Robert W.
Boots, shoes, and leggings
395 51, 395 77, 395904, 395906, 364148, G06F 1518, G05B 1302
Patent
active
054816491
ABSTRACT:
A method and apparatus for use in an adjunct system, such as a control system, operating in cooperation with a linear or non-linear physical system, such as a motor. The physical system performs a function and produces data that are monitored, and attribute values, which may be continuous valued, and system state information are produced from the data. For example, the attributes may include various motor currents and the system state information may include the motor flux. A controller and a decision tree produce decisions and commands to assist the physical system in performing its function. Certain decisions made by the decision tree are identified as being bad decisions, and the decision tree is adapted to produce a decision tree that has improved performance. Preferably, the adaptation method maintains the size of the adapted decision tree within a constant limit during the adaptation, and the adaptation is repetitively performed to successively produce new currently active decision trees.
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Horn, et al., "Variable Frequency Closed-Loop Discrete Pulse Modulation for Induction Motor Control," Proc. 29th Conf. on Decision and Control, Dec. 1990, 3039-3044.
Birdwell, J. D.; Horn, R. D.; Ilac, J.; Patek, S. D.; Shanmugam, P. S.; "A Variable-Speed Induction Motor Drive Using Expert System Technology", EPE Firenze, Published 1991.
Quinlan, J. R.; "Induction of Decision Trees", Machine Learning 1:81-106, Published 1986.
Utgoff, Paul E.; "Incremental Induction", Machine Learning 4. 161-186, Published 1989.
Sul, Seung K. and Lipo, Thomas A.; "Field-Oriented Control of an Induction Machine in a High Frequency Link Power System", IEEE Transactions on Power Electronics, vol. 5, No. 4, 436-445, Published Oct. 1990.
Divan, D. M.; "The Resonant DC Link Converter--A New Concept in Static Power Conversion", IEEE. 648-656, Published 1986.
Birdwell J. Douglas
Horn Roger D.
Downs Robert W.
The University of Tennessee Research Corp.
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