Control system for utility vehicle

Details Control system for utility vehicle Control system for utility vehicle

1995-07-25

1996-09-24

Melius, Terry Lee

Earth working

Automatic power control

172 4, A01B 4106

Patent

active

055581633

ABSTRACT:
A control system controls a plurality of control devices (such as a four wheel drive control valve, a differential lock control valve and a PTO control valve) of a work vehicle having an implement hitch coupled to a hitch actuator which is controlled by a hitch control unit. The control system has operating switches for adjusting the operation modes of the control devices and the hitch actuator. The control unit also has means for activating and deactivating an automatic mode for the control devices in response to manipulation of a first switch and means for activating the automatic mode upon a manual operation signal delivered to the hitch control unit to change the operation modes of the functions of the control devices. The control system includes an automatic switch which is manipulatable independent from the other switches. A sensor senses the position of the hitch. The control unit controls the control devices as a function of sensed hitch position and according to a predetermined program when an automatic mode is activated.

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patent: 5240079 (1993-08-01), Schmidt
patent: 5261495 (1993-11-01), Szymczak

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