METHOD FOR DETERMINING THE ROTATION SPEED OF A SUPERCHARGER IN AN INTERNAL COMBUSTION ENGINE

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Abstract

A method for determining the rotation speed of at least one supercharger which compresses the sucked air in an internal combustion engine (1); the control method, during the normal operation of the internal combustion engine (1), comprises the steps of detecting, by means of a microphone (25), the intensity of a sound signal generated by the rotation of the supercharger (14); determining a frequency content of the sound signal generated by the rotation of the supercharger (14); identifying the frequencies with maximum amplitude within the frequency content of the sound signal generated by the rotation of the supercharger (14); recognising the frequencies with maximum amplitude which are each other's multiples or submultiples; and determining the rotation speed of the supercharger (14) using exclusively the frequencies with maximum amplitude which are each other's multiples or submultiples.

Classe Tecnologica

F - Mechanical engineering, lighting, heating, weapons, blasting

Patent Office

United States Patent and Trademark Office

Numero Deposito

US2012024266

Anno Deposito

2010

Anno Concessione

2012

Inventori Pugliesi

  • De Cesare Matteo

Tutti gli inventori

  • Gabriele Serra
  • Matteo De Cesare
  • Federico Stola

Titolari pugliesi

Tutti i titolari

  • Magneti Marelli S.p.A.