PTO control apparatus for vehicular automatic transmission
First Claim
1. A control system of a power take-off apparatus for taking off power from an automatic transmission by meshing a PTO gear with a drive gear of the automatic transmission, comprising:
- a PTO switch;
vehicle speed detecting means for detecting vehicle speed; and
control means, to which are inputted an ON signal from said PTO switch and a vehicle-speed signal from said vehicle speed detecting means, for outputting an actuating signal to an actuating unit of the power take-off apparatus;
said control means actuating the power take-off apparatus by outputting the actuating signal to the actuating unit of the power take-off apparatus in response to an input of the ON signal from said PTO switch, and stopping the output of the actuating signal when said vehicle speed detecting means detects that the vehicle speed is greater than a predetermined vehicle speed which is more than zero during output of the actuating signal.
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Accused Products
Abstract
A control system of a power take-off (PTO) apparatus for taking off power from an automatic transmission by meshing PTO gear with drive gear of the automatic transmission includes a control unit, to which are inputted ON signal from PTO switch and vehicle-speed signal from vehicle speed detecting unit, for outputting actuating signal to actuating unit of the PTO apparatus. The control unit actuates the PTO apparatus by outputting the actuating signal to the actuating unit of the PTO apparatus in response to input of the ON signal from the PTO switch, and stops output of the actuating signal when a vehicle speed greater than a predetermined speed is detected during output of the actuating signal.
32 Citations
9 Claims
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1. A control system of a power take-off apparatus for taking off power from an automatic transmission by meshing a PTO gear with a drive gear of the automatic transmission, comprising:
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a PTO switch; vehicle speed detecting means for detecting vehicle speed; and control means, to which are inputted an ON signal from said PTO switch and a vehicle-speed signal from said vehicle speed detecting means, for outputting an actuating signal to an actuating unit of the power take-off apparatus; said control means actuating the power take-off apparatus by outputting the actuating signal to the actuating unit of the power take-off apparatus in response to an input of the ON signal from said PTO switch, and stopping the output of the actuating signal when said vehicle speed detecting means detects that the vehicle speed is greater than a predetermined vehicle speed which is more than zero during output of the actuating signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power take-off control system of a vehicular automatic transmission connected to a power take off apparatus for taking off power from the automatic transmission by meshing a PTO gear with a drive gear of the automatic transmission, the system comprising:
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a PTO actuating unit for meshing and unmeshing the PTO gear and the drive gear; a PTO switch; shift-range detecting means for detecting a shift-range; vehicle brake-actuation detecting means for detecting vehicle brake-actuation; vehicle speed detecting means for detecting vehicle speed; meshing detecting means for detecting meshing between the PTO gear and the drive gear; and control means, to which are inputted an ON signal from said PTO switch and detecting signals from each of said detecting means, for outputting a range-changeover signal to an electronic control unit of the automatic transmission and an actuating signal to said PTO actuating unit; wherein said control means, upon (a) receiving the ON signal from said PTO switch and a vehicle brake-actuation detection signal from said vehicle brake-actuation detecting means as input signals, (b) determining that the vehicle is at rest based upon a vehicle-speed signal from said vehicle speed detecting means and (c) determining that a prevailing shift range of the automatic transmission is a neutral range based upon the detection signal from said shift-range detecting means, outputs the range-changeover signal to the electronic control unit of the automatic transmission to place the shift range in a shift range other than neutral, then outputs the actuating signal to said PTO actuating unit to mesh the PTO gear and the drive gear, when the detection signal from said meshing detecting means is received as an input, outputs the range-changeover signal for changing over to the neutral range. - View Dependent Claims (8, 9)
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Specification