Power take-off clutch control system
First Claim
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1. A method for controlling a PTO clutch of a transmission being subject to a varying inertial load, comprising:
- providing an electrical signal to a pressure control valve selectively engaged with the PTO clutch configured to engage a drive source of the transmission with an implement; and
modulating the signal to the pressure control valve based on a single predetermined profile of clutch pressure with respect to time.
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Abstract
A method is provided for controlling a PTO clutch of a transmission subject to a varying inertial load. The method includes providing a signal to a pressure control valve selectively engaged with the PTO clutch configured to engage a drive source of the transmission with an implement. The signal to the pressure control valve is modulated based on a single predetermined profile.
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Citations
20 Claims
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1. A method for controlling a PTO clutch of a transmission being subject to a varying inertial load, comprising:
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providing an electrical signal to a pressure control valve selectively engaged with the PTO clutch configured to engage a drive source of the transmission with an implement; and
modulating the signal to the pressure control valve based on a single predetermined profile of clutch pressure with respect to time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling a PTO clutch of a transmission being subject to a varying inertial load, comprising:
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providing a signal to a pressure control valve selectively engaged with the PTO clutch configured to engage a drive source of the transmission with an implement; and
modulating the signal to the pressure control valve based on a single predetermined profile, wherein the single profile is one of the following non-linear, exponential functions;
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10. A power take-off clutch control system for controlling a PTO clutch, the system comprising:
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a pressure control valve to actuate the clutch; and
a control unit in communication with the pressure control valve, the control unit being configured to provide an electrical input signal to the pressure control valve and modulate the input signal based on a single predetermined profile of clutch pressure with respect to time. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A power take-off clutch control system for controlling a PTO clutch, the system comprising:
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a pressure control valve to actuate the clutch; and
a control unit in communication with the pressure control valve, wherein an input signal to the pressure control valve tracks a single predetermined profile, wherein the predetermined profile is based on a non-linear, exponential function, and is based on one of the following functions;
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18. A power take-off clutch control system for controlling a PTO clutch, the system comprising:
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a pressure control valve to actuate the clutch; and
a control unit in communication with the pressure control valve, wherein an input signal to the pressure control valve tracks a single predetermined profile, wherein the input signal gradually increases the clutch pressure between an on-coming clutch and an off-going clutch of the PTO clutch.
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19. A vehicle, comprising:
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a motor;
a transmission coupled to the motor and having a PTO clutch;
a pressure control valve coupled to the PTO clutch to actuate the PTO clutch;
a control unit coupled to the pressure control valve for providing an electrical signal to the pressure control valve, the signal including a single profile modulation signal of clutch pressure with respect to time to control the clutch pressure suitable over a varying load; and
a drive train coupled to the transmission. - View Dependent Claims (20)
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Specification