Power takeoff control system
First Claim
1. A control system for controlling a power takeoff shaft of a work vehicle, the work vehicle configured for travel across a work surface and having an operator station, the control system comprising:
- a remote switch located remotely from the operator station to generate at least one remote switch signal;
a vehicle speed sensor to provide a vehicle speed signal representative of a speed of the work vehicle relative to the work surface; and
a control circuit coupled to the remote switch and the vehicle speed sensor, the control circuit controlling the operation of the power takeoff shaft dependent upon the remote switch signal when the vehicle speed is below a predetermined vehicle speed and controlling the operation of the power takeoff shaft independent of the remote switch signal when the vehicle speed is above the predetermined vehicle speed.
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Accused Products
Abstract
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.
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Citations
19 Claims
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1. A control system for controlling a power takeoff shaft of a work vehicle, the work vehicle configured for travel across a work surface and having an operator station, the control system comprising:
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a remote switch located remotely from the operator station to generate at least one remote switch signal;
a vehicle speed sensor to provide a vehicle speed signal representative of a speed of the work vehicle relative to the work surface; and
a control circuit coupled to the remote switch and the vehicle speed sensor, the control circuit controlling the operation of the power takeoff shaft dependent upon the remote switch signal when the vehicle speed is below a predetermined vehicle speed and controlling the operation of the power takeoff shaft independent of the remote switch signal when the vehicle speed is above the predetermined vehicle speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control system for controlling a power takeoff shaft of a work vehicle, comprising:
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remote switch means for providing at least one remote switch signal;
sensor means for providing a vehicle speed signal representative of a speed of the work vehicle; and
control means coupled to the remote switch means and the vehicle speed sensor means for controlling the operation of the power takeoff shaft dependent upon the remote switch signal when the vehicle speed is below a predetermined vehicle speed and for controlling the operation of the power takeoff shaft independent of the remote switch signal when the vehicle speed is above the predetermined vehicle speed. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for controlling a power takeoff shaft of a work vehicle, the work vehicle configured for travel across a work surface, the method comprising:
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providing at least one remote switch signal;
providing a vehicle speed signal representative of a speed of the work vehicle relative to the work surface; and
controlling the operation of the power takeoff shaft dependent upon the remote switch signal when the vehicle speed is below a predetermined vehicle speed and controlling the operation of the power takeoff shaft independent of the remote switch signal when the vehicle speed is above the predetermined vehicle speed. - View Dependent Claims (16, 17, 18)
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19. The method of clam 15, further comprising selecting one of the local switch signal and the remote switch signal to control the power takeoff shaft.
Specification