Control system

Details Control system Control system

1978-07-10

1980-04-08

Ruggiero, Joseph F.

Boots, shoes, and leggings

318561, 318620, 364105, 364109, 244195, 244195, G06G 766, G05B 1302

Patent

active

041975774

ABSTRACT:
A control system of the non-linear type which behaves in a substantially `proportional` manner. The system comprises an error detector which compares the input and output of a plant to obtain an error value, and a control unit which derives from the error value a continuous control signal for the plant. The control signal comprises a linear term which is a linear function of the error signal and a nonlinear damping term which is a continuously variable function comprising the ratio of the rate of change of the error signal and the error itself.

REFERENCES:
patent: 3624367 (1971-11-01), Hamilton et al.
patent: 3655954 (1972-04-01), Speth
patent: 3786242 (1974-01-01), Brooks
patent: 3925640 (1975-12-01), Duggan
patent: 4006346 (1977-02-01), Pemberton

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