초록 ▼

An electronic tractor hitch control system in which the position of an implement hitch relative to a tractor can be set using a main control operable by a tractor operator from his normal location on the tractor and can also be set using a secondary control located at a location remote from the norm

An electronic tractor hitch control system in which the position of an implement hitch relative to a tractor can be set using a main control operable by a tractor operator from his normal location on the tractor and can also be set using a secondary control located at a location remote from the normal operator\s location, such as on the rear of the tractor fenders. The system is arranged so that any implement position signal set using the secondary control is opposed by a smaller hitch positioning signal generated within the system so that the speed of movement of the hitch in response to hitch positions set using the secondary control is moderated. The system also includes circuitry for detecting short circuits in parts of the system located in vulnerable locations.

대표청구항 ▼

A tractor hitch control system for the control of the position of an implement hitch relative to a tractor using an actuator connected between the hitch and tractor, the system comprising: main control means operable by a tractor operator from his normal operator\s location on the tractor for the se

A tractor hitch control system for the control of the position of an implement hitch relative to a tractor using an actuator connected between the hitch and tractor, the system comprising: main control means operable by a tractor operator from his normal operator\s location on the tractor for the setting of a desired value of an operating parameter of the tractor and/or hitch, sensing means for sensing the actual value of the operating parameter, comparator means for comparing the desired and actual values of the operating parameter to provide an error signal, processing means for processing the error signal to provide an actuating signal to control the actuator thereby moving the hitch so as to tend to reduce the error signal to zero, and secondary control means positioned at a location remote from the normal operator\s location to allow the operator to initiate a signal to adjust the position of the hitch when at said remote location, the system being characterized in that any signal from the secondary control means is opposed by a smaller hitch positioning signal generated within the control system so that the speed of movement of the hitch in response to signals from the secondary control means is moderated.