Method And System For Active Noise Or Vibration Control Of Systems
AssigneeOtis Elevator Company
InventorsArthur Blanc, Vladimir Blasko
Life of this patent
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Abstract
A system for active control of noise and/or vibration includes an electric machine; at least one sensor for sensing at least one of noise and vibration in the machine and generating at least one of an audio signal representing noise and a vibration signal representing vibration; a controller obtaining at least one of the noise signal and the vibration signal, the controller generating control signals to reduce at least one of noise and vibration in the machine; and power electronics receiving the control signals and generating drive signals for the machine.
Claims19
A system for active control of noise and/or vibration, comprising:
- an electric machine;
- at least one sensor for sensing at least one of noise and vibration in the machine and generating at least one of an audio signal representing noise and a vibration signal representing vibration;
- a controller obtaining at least one of the noise signal and the vibration signal, the controller generating control signals to reduce at least one of noise and vibration in the machine;
- and
- power electronics receiving the control signals and generating drive signals for the machine.
A method for active control of noise and/or vibration in a system, the method comprising:
- sensing at least one of noise and vibration at an electric machine to generate at least one of a noise signal and a vibration signal;
- generating control signals to reduce at least one of noise and vibration in the machine in response to at least one of the noise signal and the vibration signal;
- and
- generating drive signals for the machine in response to the control signals.
Dependencies are inferred from the claim text.