Engine and transmission control system and method for a vehicle accessory
First Claim
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1. A control system for a vehicle having an accessory, the control system comprising:
- a continually variable transmission coupled to an engine;
a power take-off unit having an output speed and an output torque, said power take off unit coupled to said continually variable transmission and adapted to releaseably couple to the accessory;
a drivetrain selectively coupled to said continually variable transmission;
a mode selection module having a plurality of modes including at least one selected mode; and
a control module detects which of the plurality of modes is the at least one selected mode and controls at least one of said output speed and said output torque of said power take off unit based on the selected mode.
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Abstract
A control system for a vehicle having an accessory generally includes a transmission coupled to an engine and a power take-off unit having an output speed and an output torque. The power take-off unit is coupled to the transmission and adapted to releaseably couple to the accessory. A drivetrain is selectively coupled to the transmission and a control module controls at least one of the output speed and the output torque of the power take-off unit.
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Citations
47 Claims
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1. A control system for a vehicle having an accessory, the control system comprising:
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a continually variable transmission coupled to an engine; a power take-off unit having an output speed and an output torque, said power take off unit coupled to said continually variable transmission and adapted to releaseably couple to the accessory; a drivetrain selectively coupled to said continually variable transmission; a mode selection module having a plurality of modes including at least one selected mode; and a control module detects which of the plurality of modes is the at least one selected mode and controls at least one of said output speed and said output torque of said power take off unit based on the selected mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control system for a vehicle having an accessory, the control system comprising:
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a transmission coupled to an engine; a power take-off unit having an output speed and an output torque, said power take off unit coupled to said transmission and adapted to releaseably couple to the accessory;
said power take off unit being selectively coupled to said transmission;a drivetrain selectively coupled to said transmission; an accelerator assembly having a movable member movable within a range of motion defined by a first position and a second position; a mode selection module having a plurality of modes including at least one selected mode; and a control module detects which of the plurality of modes is the at least one selected mode and controls at least one of said output speed and said output torque of said power take off unit based on the selected mode, wherein the plurality of modes includes at least a first mode and a second mode, said mode selector module in said first mode decouples said drivetrain from said transmission, couples said power take off unit to said transmission and controls at least one of said output speed and said output torque of said power take off unit, said mode selector module in said second mode controls at least one of said output speed and said output torque of said power take-off unit, wherein an output speed of said drivetrain is based on a position of said movable member. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A control system for a vehicle having an accessory, the control system comprising:
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an engine having a minimum engine speed and a maximum engine speed; a transmission coupled to said engine; a power take-off unit having an output speed and an output torque, said power take off unit selectively coupled to said transmission and adapted to releaseably couple to the accessory; a drivetrain selectively coupled to said transmission, said drive train having an output speed and an output torque; an accelerator assembly having a movable member movable within a range of motion defined by a first position and a second position; and a control module that couples said drivetrain and said power take off unit to said transmission, that controls at least one of said output speed and said output torque of said power take off unit and that controls at least one of said output speed and said output torque of said drivetrain, wherein said control module limits said output torque of said drivetrain to about a predetermined value. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A vehicle having an engine, an accessory and a vehicle control system comprising:
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a transmission having a first output and a second output, said second output selectively coupled to the accessory; a drivetrain selectively coupled to said first output; and a mode selector module having at least a first mode, a second mode and a third mode, said mode selector module in said first mode decouples said drivetrain from said transmission and holds a speed of said second output about constant or limits said speed of said second output to below a predetermined value, said mode selector module in said second mode couples said drivetrain to said transmission and holds said speed of said second output about constant or limits the said speed of said second output to below said predetermined value and said mode selector module in said third mode at least one of holds said speed of said first output and said second output about constant, limits said speed of said first output and said second output to below said predetermined value, holds said speed of the first output about constant and limits said speed of the second output to below said predetermined value, and limits said speed of the first output to below said predetermined value and holds said speed of the second output about constant. - View Dependent Claims (28, 29)
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30. A vehicle having a vehicle control system, an engine and a transmission with a first output that selectively couples to a drivetrain and a second output that selectively couples an accessory, the vehicle control system comprising:
a mode selector module having at least a first mode, a second mode and a third mode, said mode selector module in said first mode decouples the drivetrain from the transmission and holds a speed of the second output about constant or limits said speed of the second output to below a predetermined value, said mode selector module in said second mode couples the drivetrain to the transmission and holds said speed of the second output about constant or limits said speed of the second output to below said predetermined value and said mode selector module in said third mode at least one of holds said speed of the first output and the second output about constant, limits said speed of the first output and the second output to below said predetermined value, holds said speed of the first output about constant and limits said speed of the second output to below said predetermined value, and limits said speed of the first output to below said predetermined value and holds said speed of the second output about constant. - View Dependent Claims (31, 32)
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33. A method of controlling an engine and a transmission with a first output that selectively couples to a drivetrain and a second output that selectively couples to an accessory, the method comprising:
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detecting at least a first mode, a second mode and a third mode; decoupling the drivetrain from the transmission in said first mode and holding a parameter of the second output about constant or limiting said parameter of the second output to below a predetermined value; coupling the drivetrain to the transmission in said second mode and holding said parameter of the second output about constant or limiting said parameter of the second output to below said predetermined value; and in said third mode holding a parameter of the first output about constant or limiting said parameter of the first output below said predetermined value, wherein said parameter of the said second output is held about constant or limited below said predetermined value. - View Dependent Claims (34, 35, 36, 37)
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38. A control system for a vehicle having an accessory, the control system comprising:
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a transmission coupled to an engine; a power take-off unit having an output speed and an output torque, said power take off unit selectively coupled to said transmission and adapted to releaseably couple to the accessory; a drivetrain selectively coupled to said transmission; a control module controls at least one of said output speed and said output torque of said power take off unit; and an interlock system connected to said control module, said control module decouples said drivetrain and couples said power take off unit to said transmission when said interlock system is in an activated condition. - View Dependent Claims (39, 40, 41, 42)
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43. A control system for a vehicle having an accessory, the control system comprising:
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a transmission coupled to an engine; a power take-off unit having an output speed and an output torque, said power take off unit selectively coupled to said transmission and adapted to releaseably couple to the accessory; a drivetrain selectively coupled to said transmission; a control module controls at least one of said output speed and said output torque of said power take off unit; and a brake that holds the vehicle from moving when said control module decouples said drivetrain and couples said power take off unit to said transmission. - View Dependent Claims (44, 45, 46, 47)
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Specification