Method and apparatus for limiting the control of an implement of

Details Method and apparatus for limiting the control of an implement of Method and apparatus for limiting the control of an implement of

1997-12-19

2000-04-04

Underwood, Donald W.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Construction or agricultural-type vehicle

414685, 37414, E02F 334

Patent

active

060472286

ABSTRACT:
An apparatus for limiting the control of a work implement is disclosed. The implement is connected to a work machine and is moveable in response to operation of a hydraulic cylinder. The apparatus includes an operator controlled joystick. A joystick position sensor senses the position of the joystick and responsively generates an operator command signal. An implement position sensor senses the position of the work implement and responsively produces an implement position signal. A microprocessor based controller receives the implement position and operator command signals, modifies the operator command signal, and produces an electrical valve signal in response to the modified operator command signal. An electrohydraulic valve receives the electrical valve signal, and controllably provides hydraulic fluid flow to the hydraulic cylinder in response to a magnitude of the electrical valve signal.

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patent: 5537818 (1996-07-01), Hosseini et al.
patent: 5701793 (1997-12-01), Gardner et al.

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