POWER SOURCE SPEED CONTROL IN A MACHINE WITH A CVT
First Claim
1. A method for controlling a power source of a mobile machine having a continuously variable transmission (CVT), the method comprising:
- receiving, from an operator of the mobile machine, input selecting of one of a plurality of target travel speeds of the mobile machine;
receiving, from the operator, input indicative of a requested output speed of the power source;
calculating a difference between the selected target travel speed and an actual travel speed of the mobile machine;
adjusting the requested output speed of the power source based on the calculated travel speed difference; and
commanding the power source based on the adjusted requested output speed of the power source.
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Accused Products
Abstract
Methods and systems for controlling a power source of a mobile machine having a continuously variable transmission (CVT) are disclosed. In one embodiment, the method includes receiving, from an operator of the mobile machine, input selecting of one of a plurality of target travel speeds of the mobile machine and input indicative of a requested output speed of the power source. The method further includes calculating a difference between the selected target travel speed and an actual travel speed of the mobile machine. Finally, the method includes adjusting the requested output speed of the power source based on the calculated travel speed difference, and commanding the power source based on the adjusted requested output speed of the power source.
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Citations
25 Claims
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1. A method for controlling a power source of a mobile machine having a continuously variable transmission (CVT), the method comprising:
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receiving, from an operator of the mobile machine, input selecting of one of a plurality of target travel speeds of the mobile machine; receiving, from the operator, input indicative of a requested output speed of the power source; calculating a difference between the selected target travel speed and an actual travel speed of the mobile machine; adjusting the requested output speed of the power source based on the calculated travel speed difference; and commanding the power source based on the adjusted requested output speed of the power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control system for controlling a power source of a mobile machine having a continuously variable transmission (CVT), the system comprising:
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a memory storing a plurality of target travel speeds of the mobile machine; a first operator input device configured to receive from an operator of the mobile machine input selecting one of the plurality target travel speeds; a second operator input device configured to receive from the operator input indicative of a requested output speed of the power source; a sensor configured to sense an actual travel speed of the mobile machine; and a controller configured to; calculate a difference between the selected target travel speed of the mobile machine and the actual travel speed of the mobile machine; adjust the requested output speed of the power source based on the calculated travel speed difference; and command the power source based on the adjusted requested output speed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A mobile machine, comprising:
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at least one traction device configured to propel the mobile machine; a power source configured to generate a power output; a continuously variable transmission (CVT) configured to drive the at least one traction device with the power output; a memory storing a plurality of target travel speeds of the mobile machine; a first operator input device configured to receive from an operator of the mobile machine input selecting one of the plurality target travel speeds; a second operator input device configured to receive from the operator input indicative of a requested output speed of the power source; a sensor configured to sense an actual travel speed of the mobile machine; and a controller configured to; calculate a difference between the selected target travel speed of the mobile machine and the actual travel speed of the mobile machine; adjust the requested output speed of the power source based on the calculated travel speed difference; and command the power source based on the adjusted requested output speed. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method for controlling a power source of a mobile machine having a continuously variable transmission (CVT), the method comprising:
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receiving, from an operator of the mobile machine, input indicative of a requested output speed of the power source; commanding the power source based on the requested output speed of the power source; determining whether the power source and the CVT have maintained state-state output for a period of time; and when it is determined that the power source and the CVT have maintained state-state output for a period of time, overriding the requested output speed of the power source with a reduced requested power source output speed of the power source, and commanding the power source based on the reduced requested output speed of the power source.
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Specification