Control system for reducing powertrain induced vibrations
First Claim
1. A vibration control system for a machine having a powertrain secured to the machine by a mounting system, comprising:
- a first sensor configured to generate a first signal indicative of a parameter of a work cycle of the machine;
a second sensor configured to generate a second signal indicative of vibrations induced by the powertrain;
a vibration inducing device; and
a controller in communication with the first sensor, the second sensor, and the vibration inducing device, the controller being configured to;
classify a current operation of the machine as one of a plurality of predetermined segments of the work cycle based on the first signal;
predict a vibration profile that will be generated by the machine during a future segment of the work cycle;
tune a listening window based on the vibration profile; and
generate a command wave directed to the vibration inducing device to generate canceling vibrations during the future segment based on the second signal received within the listening window.
1 Assignment
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Accused Products
Abstract
A vibration control system is disclosed for a machine having a powertrain secured by a mounting system. The control system may include a first sensor, a second sensor, a vibration inducing device, and a controller. The first sensor may be configured to generate a first signal indicative of a parameter of a work cycle of the machine, and the second sensor may be configured to generate a second signal indicative of vibrations induced by the powertrain. The controller may be in communication with the first sensor, the second sensor, and the vibration inducing device. The controller may be configured to classify a current operation of the machine as one of a plurality of predetermined segments of a work cycle based on the first signal, to predict a vibration profile that will be generated by the machine during a future segment of the work cycle, to tune a listening window based on the vibration profile, and to generate a command wave directed to the vibration inducing device to generate canceling vibrations during the future segments based on the second signal received within the listening window.
10 Citations
20 Claims
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1. A vibration control system for a machine having a powertrain secured to the machine by a mounting system, comprising:
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a first sensor configured to generate a first signal indicative of a parameter of a work cycle of the machine; a second sensor configured to generate a second signal indicative of vibrations induced by the powertrain; a vibration inducing device; and a controller in communication with the first sensor, the second sensor, and the vibration inducing device, the controller being configured to; classify a current operation of the machine as one of a plurality of predetermined segments of the work cycle based on the first signal; predict a vibration profile that will be generated by the machine during a future segment of the work cycle; tune a listening window based on the vibration profile; and generate a command wave directed to the vibration inducing device to generate canceling vibrations during the future segment based on the second signal received within the listening window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of controlling vibrations of a machine having a powertrain, the method comprising:
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sensing a parameter indicative of a work cycle of the machine and responsively generating a first signal; classifying, by a controller, a current operation of the machine as one of a plurality of predetermined segments of the work cycle based on the first signal; predicting, by a controller, a vibration profile that will be generated by the machine during a future segment of the work cycle; tuning, by a controller, a listening window based on the vibration profile; sensing vibrations induced by the powertrain and received within the listening window; and generating, by a controller, a command wave based on the sensed vibrations to generate canceling vibrations during the future segment. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A machine comprising:
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a frame; an implement system connected to the frame and configured to perform a work cycle; a powertrain supported by the frame and including an engine and a transmission; and a vibration control system including; a first sensor configured to generate a first signal indicative of a parameter of the work cycle; a second sensor configured to generate a second signal indicative of vibrations induced by the powertrain; a vibration inducing device; and a controller in communication with the first sensor, the second sensor, and the vibration inducing device, the controller being configured to; classify a current operation of the machine as one of a plurality of predetermined segments of the work cycle based on the first signal; predict a vibration profile that will be generated by the machine during a future segment of the work cycle; tune a listening window based on the vibration profile; and generate a command wave directed to the vibration inducing device to generate canceling vibrations during the future segment based on the second signal received in the listening window.
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Specification