Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Patent
1997-08-04
2000-04-18
Cuchlinski, Jr., William A.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Construction or agricultural-type vehicle
701 53, 701 49, 318645, 172 45, 388929, G05D 1600
Patent
active
06052636&
ABSTRACT:
An apparatus and method for rotatably positioning a machine housing is disclosed. A pump produces pressurized fluid to a motor that responsively rotates the machine housing. A control valve regulates fluid flow from the pump to the motor. A position sensor detects the rotational position of the housing and responsively produces an actual position signal. A device produces a signal indicative of a desired rotational position of the housing. A controller compares the desired and actual position signals, responsively produces an error signal, multiplies the error signal by a variable gain value representative of the housing acceleration and delivers a control signal to the control valve to rotate the housing to the desired position.
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Advance modern control system theory and design, Stanley M. Shinners, pp. 6,7,516,517,574-585.
Caterpillar Inc.
Cuchlinski Jr. William A.
Hernandez Olga
Lundquist Steve D.
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