Model reference adaptive implement control

Details Model reference adaptive implement control Model reference adaptive implement control

1982-08-06

1985-01-22

Stouffer, Richard T.

Boots, shoes, and leggings

172 7, 364150, A01B 63112

Patent

active

044955774

ABSTRACT:
A tractor-mounted hitch is movable to control the working depth of an implement in response to control signals generated by a model reference adaptive control system. The control system senses draft force and rockshaft position and receives operator-controlled reference signals representative thereof. A model reference adaptive draft control signal is derived from a model error signal, an adaptive gain value and a compensated position feedback term. A position error control signal is also generated. One or the other of the control signals is used to control the implement, depending upon whether or not the implement is in the ground and depending upon the relationship of the control signals.

REFERENCES:
patent: 3860074 (1975-01-01), Maistrelli
patent: 3920965 (1975-11-01), Sohrwardy
patent: 4013875 (1977-03-01), McGlynn
patent: 4044838 (1977-08-01), Wooldridge
patent: 4064945 (1977-12-01), Haney
patent: 4195337 (1980-03-01), Bertrand et al.
patent: 4300638 (1981-11-01), Katayama et al.
patent: 4385353 (1983-05-01), Schneider
R. V. Monopoli, "Model Reference Adaptive Control with an Augmented Error Signal", IEEE Transactions on Automatic Control, Oct. 1974.

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