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Navigation and GPS

Power-takeoff-control-system

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Power takeoff control system

Details

Inventors: Stelzle, Michael; Schubert, William L.; Itzenhuiser, William A.;
Assignee: Case Corporation (Racine, WI)
Primary Examiner: Cuchlinski, Jr.; William A.
Assistant Examiner: Hernandez; Olga
Attorney, Agent or Firm: Foley & Lardner

A control system is disclosed for controlling a power takeoff (PTO) shaft of a work vehicle (e.g., a tractor). The work vehicle includes an engine and an operator station, and the PTO shaft transfers power from the engine to an implement. The control system includes a remote switch, a vehicle speed sensor, and a control circuit. The remote switch is located remotely from the operator station and provides a remote switch signal to the control circuit to engage and disengage rotational movement of the PTO shaft. The vehicle speed sensor provides a vehicle speed signal to the control circuit representative of a speed of the work vehicle. The control circuit receives the remote switch signal and the vehicle speed signal and, when the vehicle speed signal exceeds a predetermined vehicle speed, the control circuit prevents engagement and disengagement of the PTO shaft with the remote switch.

DETAILED DESCRIPTION These and other limitations of the prior art are overcome by the present invention which, according to an exemplary embodiment, includes a control system for controlling a power takeoff shaft of a work vehicle having an operator station.
The control system includes a remote switch, a vehicle speed sensor and a control circuit.
The remote switch is located remotely from the operator station and provides a remote switch signal to control the power takeoff shaft.
The vehicle speed sensor provides a vehicle speed signal representative of a speed of the work vehicle.
The control circuit, coupled to the remote switch and the vehicle speed sensor, receives the remote switch signal and the vehicle speed signal.
When the speed of the work vehicle exceeds a predetermined speed, the control circuit prevents control of the power takeoff shaft with the remote switch signal.
According to another exemplary embodiment of the present invention, a control system for controlling a power takeoff shaft of a work vehicle having an operator station is provided.
The control system includes remote switch means for providing a remote switch signal to control the power takeoff shaft, and a vehicle speed sensor means for providing a vehicle speed signal representative of a speed of the work-vehicle.
The control system further includes control means coupled to the remote switch means and the vehicle speed sensor means for receiving the remote switch signal and the vehicle speed signal and, when the speed of the work vehicle exceeds a predetermined vehicle speed, for preventing control of the power takeoff shaft with the remote switch signal.
According to another exemplary embodiment of the present invention, a method for controlling a power takeoff shaft of a work vehicle is provided.
The method includes providing a remote switch signal to control the power takeoff shaft, providing a vehicle speed signal representative of a speed of the work vehicle, and preventing control of the power takeoff shaft with the remote switch signal when the speed of the work vehicle exceeds a predetermined vehicle speed

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