METHOD OF MICROPHONE SIGNAL CONTROLLING AN INTERNAL COMBUSTION ENGINE

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Abstract

A method of controlling an internal combustion engine (2) having at least one cylinder (3) defining a variable-volume combustion chamber; and a rotating crankshaft (15) powered by a piston (14) sliding inside the cylinder (3); the control method including the steps of: determining a recording window (W) expressed in engine angle degrees (±) and having a start engine angle (± start ) and a stop engine angle (± stop ); acquiring and memorizing the intensity (S) of sound pressure waves, generated by the internal combustion engine (2) as a function of an engine angle (±), by means of at least one sound pressure sensor (21a) and within the recording window (W); and estimating the value of at least one operating parameter of a part of the internal combustion engine (2) by analysing the intensity (S) of the sound pressure waves in the recording window (W).

Classe Tecnologica

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

Patent Office

United States Patent and Trademark Office

Numero Deposito

US2010106393

Anno Deposito

2008

Anno Concessione

2010

Inventori Pugliesi

  • Bisanti Giancarlo

Tutti gli inventori

  • Stefano Sgatti
  • Nicolò Cavina
  • Filippo Cavanna
  • Giancarlo Bisanti

Titolari pugliesi

  • Non ci sono titolari pugliesi

Tutti i titolari

  • Magneti Marelli S.p.A.