Apparatus and method for controlling the material feed system of

Road structure – process – or apparatus – Process

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404 841, E01L 1900

Patent

active

055755836

ABSTRACT:
An apparatus for controlling a material feed system of a paver is disclosed. The material feed system includes a feeder conveyor and a spreader auger. The apparatus includes a sensor that monitors the amount of material at the edge of the screed and responsively produces an actual material height signal. A rotary switch produces a desired material height signal indicative of a desired amount of material at the edge of the screed. A controller receives the actual and desired material height signals, determines a desired rotational speed of the auger in response to the difference between the signal magnitudes, and produces a command signal to rotate the auger at the desired speed. An electrohydraulic system receives the command signal and rotates the auger at the desired rotational speed.

REFERENCES:
patent: 3743432 (1973-07-01), Lee
patent: 4948292 (1990-08-01), Haven et al.
patent: 5044820 (1991-09-01), Prang
patent: 5232305 (1993-08-01), Bassett et al.
patent: 5362176 (1994-11-01), Sovik

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