AUTO-LIFT CONTROLLER FOR AGRICULTURAL WORKING MACHINE

摘要

PROBLEM TO BE SOLVED: To solve the trouble that in the case where an inexperienced operator drives a tractor equipped with an auto-lift controller that detects the turning operation, when the tractor turns at a butt, to automatically lift up the working machine to the idling position, the machine body is unnecessarily largely steered, for, for example, backward confirmation or slight course change, resultantly the working machine is lifted to roughen the working place by setting the control sensitivity in the auto-lift controller dull in the working process other than such turning at the butt thereby inhibiting the working machine from being lifted. ;SOLUTION: In an auto-lift controller that automatically lifts the ground working machine at the turning operation of the tractor under the previously set standard controlling sensitivity, the process interval of the straight-driving work is measured during the actuation of the front and the rear auto-lift controller and the control sensitivity of the auto-lift controller is set duller than the standard control sensitivity.;COPYRIGHT: (C)1999,JPO