Hitch control system

Details Hitch control system Hitch control system

1989-01-06

1990-12-18

Smith, Jerry

Boots, shoes, and leggings

364153, 36442407, 172 3, 172 10, G05B 1304, A01B 63112

Patent

active

049790927

ABSTRACT:
A hitch control system includes a draft force sensor, a hitch position sensor, an operator command lever, an upper hitch position limit setter, a mixer setter, a drop rate setter and a control unit which generates control signals as a function thereof. The control system includes a first (load) control mode wherein the hitch is controlled as a linear function primarily of sensed draft force and a second control mode wherein the hitch is controlled purely as a non-linear function of sensed hitch position. In the load control mode, a reference position value is used as a set point representing only the lower range of positions of the hitch. Draft force sensitivity and system gain values are derived from the mix setter so that increasing the sensitivity also increases the system gain. The sensitivity value is limited within a predetermined range.

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Deere & Co., "Rockshaft and Implement Hitch", 1980, TM-1199, pp. 270-25-1 through 270-25-12.
R. E. Squires, "Electronic Draft Control System", date unknown, pp. 67-75.
Revere Corp., "Model GZ-10 Goyinta Sensor", 1986, 4 pages.

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