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Control system having active noise and vibration centralized control through digital network

  • US 9,779,720 B2
  • Filed: 04/08/2015
  • Issued: 10/03/2017
  • Est. Priority Date: 04/08/2015
  • Status: Expired due to Fees
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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