CVT system having discrete selectable speed ranges
First Claim
1. A transmission control system, comprising:
- a first operator input device to receive operator input and produce a corresponding first signal indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges;
a second operator input device to receive operator input and produce a corresponding second signal indicative of desired machine travel;
a power source operatively coupled to drive a continuously-variable transmission; and
a controller to regulate at least one of an output of the power source and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of available predetermined discrete machine travel speed ranges.
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Accused Products
Abstract
A continuously variable transmission control system is disclosed. The control system has a first operator input device to receive operator input and produce a corresponding first signal indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges. The control system also has a second operator input device to receive operator input and produce a corresponding second signal indicative of desired machine travel. The control system also has a power source operatively coupled to drive a continuously-variable transmission, and a controller configured to regulate at least one of an output of the power source and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of predetermined discrete machine travel speed ranges.
91 Citations
20 Claims
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1. A transmission control system, comprising:
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a first operator input device to receive operator input and produce a corresponding first signal indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges; a second operator input device to receive operator input and produce a corresponding second signal indicative of desired machine travel; a power source operatively coupled to drive a continuously-variable transmission; and a controller to regulate at least one of an output of the power source and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of available predetermined discrete machine travel speed ranges. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling machine travel speed, comprising:
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transmitting a power output through a continuously variable transmission to propel a machine; receiving a first signal indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges; receiving a second signal indicative of desired machine travel; and regulating at least one of the power output and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of available predetermined discrete machine travel speed ranges. - View Dependent Claims (12, 13, 14, 15)
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16. A machine, comprising:
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a power source operatively coupled to drive a continuously-variable transmission; a traction device operatively coupled to the transmission to propel the machine; an operator station including an operator interface for receiving operator input; and a controller configured to; receive a first signal from the operator interface indicative of a selected one of a plurality of available predetermined discrete machine travel speed ranges; receive a second signal from the operator interface indicative of desired machine travel; and regulate at least one of an output of the power source and an output of the continuously variable transmission in response to the first and second signals such that an actual machine travel speed remains within the selected one of the plurality of predetermined discrete machine travel speed ranges. - View Dependent Claims (17, 18, 19, 20)
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Specification