Patent ID: 9119348
Filing Date: 2015-09-01
Classification: A01B,A01F,E02F,F16H

Abstract:
1. A method of controlling a combination of a tractor and an implement coupled to the tractor, the tractor including ground engaging drive wheels driven by an engine, an operator movable speed command device and a tractor controller operable to control tractor motion in response to operation of the speed command device, the tractor controller having automatic and manual speed control modes, the tractor controller generating an Operator Speed Limit value as a function of the speed command device, the implement having an implement control unit coupled to the tractor controller and the implement control unit transmitting an implement speed request signal to the tractor controller, the method comprising: in step 1, resetting an operator timer; next, in step 2, wait for the next time slot; next, in step 3, compare the Operator Speed Limit value to the implement speed request signal, and if the Operator Speed Limit is not greater than the implement speed request then returning to step 1, and if the Operator Speed Limit is greater than the implement speed request then proceeding to a step 4; and in step 4, incrementing the operator timer; and in step 5, if the Operator Speed Limit value has been increased and the operator timer has timed out then proceeding to step 6, else returning to step 2; and in step 6, exiting the automatic speed control mode and enabling the manual speed control mode.