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Method and apparatus for intelligent active and semi-active vibration control

  • US 5,418,858 A
  • Filed: 07/11/1994
  • Issued: 05/23/1995
  • Est. Priority Date: 07/11/1994
  • Status: Expired due to Fees
First Claim
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1. The method of controlling and attenuating vibration or noise in a structure, such as an automotive vehicle, where the vibration is induced by vibration excitation sources, comprisingproviding a plurality of sensors for extracting signals related to vibration and/or acoustic noise from the structure and its environs,providing a plurality of actuators for applying attenuating noise and/or vibration to the structure,providing a microprocessor having inputs from the sensors and outputs to the actuators,performing an on-line modal extraction of vibration and/or noise from the sensors,then operating the microprocessor with an optimal control algorithm based on minimum variance,then operating the microprocessor using an intelligent control algorithm,the microprocessor then generating an output signal and applying such signal to the actuators which will minimize and/or filter the vibration or noise introduced to the structure.

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