Method and apparatus for controlling the speed ranges of a machine
AssigneeCaterpillar SARL
InventorsDante T. Thomas, Mark A. Sporer, Michael S. Freberg, Paul A. Dvorak
Life of this patent
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Abstract
A method and apparatus of a work machine wherein an operator traverses the work machine within an operator selected speed range. The operator positions a speed-range control device to select the operator selected speed range, thus, sending a speed-range signal from the speed-range control device to an electronic control module indicative of the position of the speed-range control device. The speed-range signal is converted to a scaling factor to re-calibrate at least one drive map indicative of the scaling factor. The operator then may position a control device to traverse the work machine within the operator selected speed range.
Claims12
A method of controlling a machine to traverse within an operator selected speed range and direction, the machine having a first control device and a transmission, comprising:
- receiving an operator selected speed-range signal from a second control device;
- converting the speed-range signal to a scaling factor;
- re-calibrating at least one drive map according to the scaling factor to change from a first speed range to a second speed range, the second speed range being indicative of the operator selected speed range;
- receiving a drive signal from the first control device indicative of a desired speed and direction;
- determining an output signal as a function of the drive signal and the at least one drive map;
- and
- delivering the output signal to the transmission.
Dependencies are inferred from the claim text.