Control device for controlling a controlled apparatus, and a con

Details Control device for controlling a controlled apparatus, and a con Control device for controlling a controlled apparatus, and a con

1995-03-30

1996-07-30

Gordon, Paul P.

Boots, shoes, and leggings

36447204, 364153, 395 22, 395 61, 395900, 395906, G05B 1302, G06F 1518

Patent

active

055418325

ABSTRACT:
In order to control an apparatus, such as a rolling mill, a control device may use a pre-set operation pattern to generate a pre-set command signal, which is then modified.
That first modification may be part of a feedback loop in set command signal, which is then modified. That first modification may be part of a feedback loop in logic. Then the relationship between the modified pre-set command signal and the variation of the variable operation device is investigated to generate a compensation signal which is used to modify further the pre-set command signal. In a feedback loop, that further modification may compensate for changes in the operating point of the loop, due to changes in the apparatus being controlled. In a fuzzy logic arrangement, the compensation signal may be a further control pattern developed by the control device itself, which is combined with the pre-set patterns by fuzzy logic. The control device may be in the form of a series of modules.

REFERENCES:
patent: 4602326 (1986-07-01), Kraus
patent: 4814968 (1989-03-01), Fukumoto
patent: 4864490 (1989-09-01), Nomoto et al.
patent: 5166873 (1992-11-01), Takatsu et al.
patent: 5303385 (1994-04-01), Hattori et al.
patent: 5412757 (1995-05-01), Endo
patent: 5430642 (1995-07-01), Nakajina et al.

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