Control system having active noise and vibration centralized control through digital network
First Claim
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1. A system comprising:
- a controller;
an audio sub-system including a microphone for detecting noise and a speaker for outputting a noise cancelling sound;
a vibration sub-system including a vibration sensor for detecting vibrations and a vibration actuator for generating forces;
a digital network interconnecting the controller and the sub-systems;
wherein the controller, the microphone, the speaker, the vibration sensor, and the vibration actuator are individually connected to the digital network in a daisy chain arrangement to be in communication with one another; and
wherein the controller is configured to communicate with and control through the digital network the audio sub-system including the microphone and the speaker and the vibration sub-system including the vibration sensor and the vibration actuator to perform active noise control (ANC) and active vibration control (AVC) functions and the controller is further configured to control through the digital network, based on noise detected by the microphone, the speaker to output a noise cancelling sound and the vibration actuator to generate a force causing a noise cancelling sound to be generated;
where the controller communicates with an electronic control unit via a CAN bus, so that the controller generates a reference signal proportional to the frequency of the engine rotation cycles.
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Abstract
A control system provides centralized active noise control (ANC) and active vibration control (AVC) through a digital network. The control system includes a controller, an audio sub-system, and a vibration sub-system. The audio-sub system includes at least one sound monitoring component and at least one sound outputting component. The vibration sub-system includes at least one vibration monitoring component and at least one vibration actuating component. The controller and the sub-systems are interconnected through the digital network. The controller controls the sub-systems through the digital network to perform the ANC and AVC functions in a holistic approach.
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Citations
17 Claims
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1. A system comprising:
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a controller; an audio sub-system including a microphone for detecting noise and a speaker for outputting a noise cancelling sound; a vibration sub-system including a vibration sensor for detecting vibrations and a vibration actuator for generating forces; a digital network interconnecting the controller and the sub-systems; wherein the controller, the microphone, the speaker, the vibration sensor, and the vibration actuator are individually connected to the digital network in a daisy chain arrangement to be in communication with one another; and wherein the controller is configured to communicate with and control through the digital network the audio sub-system including the microphone and the speaker and the vibration sub-system including the vibration sensor and the vibration actuator to perform active noise control (ANC) and active vibration control (AVC) functions and the controller is further configured to control through the digital network, based on noise detected by the microphone, the speaker to output a noise cancelling sound and the vibration actuator to generate a force causing a noise cancelling sound to be generated;
where the controller communicates with an electronic control unit via a CAN bus, so that the controller generates a reference signal proportional to the frequency of the engine rotation cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vehicle comprising:
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a controller; an audio sub-system including a microphone for detecting noise and a speaker for outputting a noise cancelling sound; a vibration sub-system including a vibration sensor for detecting vibrations and a vibration actuator for generating forces; a digital network; wherein the controller, the microphone, the speaker, the vibration sensor, and the vibration actuator are individually connected to the digital network in a daisy chain arrangement to be in communication with one another; and wherein the controller is configured to communicate with and control through the digital network the audio sub-system including the microphone and the speaker and the vibration sub-system including the vibration sensor and the vibration actuator to perform active noise control (ANC) and active vibration control (AVC) functions for the vehicle and the controller is further configured to control through the digital network, based on noise detected by the microphone, the speaker to output a noise cancelling sound and the vibration actuator to generate a force causing a noise cancelling sound to be generated;
where the controller communicates with an electronic control unit via a CAN bus, so that the controller generates a reference signal proportional to the frequency of the engine rotation cycles. - View Dependent Claims (13, 14, 15, 16)
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17. A system comprising:
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a digital network; a controller, a microphone, a speaker, and a vibration actuator individually connected to the digital network in a daisy chain arrangement; and wherein the controller is configured to control through the digital network, based on noise detected by the microphone, the speaker to output a noise cancelling sound and the vibration actuator to generate a force causing a noise cancelling sound to be generated;
where the controller communicates with an electronic control unit via a CAN bus, so that the controller generates a reference signal proportional to the frequency of the engine rotation cycles.
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Specification