Control method of a direct injection system of the common rail type provided with a high-pressure fuel pump

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Abstract

A control method of a direct injection system (1) of the common rail in an internal combustion engine (2); the control method contemplates the steps of: feeding the pressurized fuel to a common rail (5) by means of a high-pressure pump (6) presenting at least one pumping element (15) mechanically operated by a drive shaft (21) of the internal combustion engine (2); measuring the angular position of the drive shaft (21); measuring the fuel pressure (P rail ) in the common rail (5); analyzing the oscillations of the fuel pressure (P rail ) in the common rail (5); and determining the phase of the pumping element (15) of the high-pressure pump (6) with respect to the drive shaft (21) according to the oscillations of the fuel pressure (P rail ) in the common rail (5).

Classe Tecnologica

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

Patent Office

United States Patent and Trademark Office

Numero Deposito

US7789068

Anno Deposito

2008

Anno Concessione

2010

Inventori Pugliesi

  • De Cesare Matteo

Tutti gli inventori

  • Gabriele Serra
  • Matteo De Cesare
  • Giovanni Prodi

Titolari pugliesi

Tutti i titolari

  • Magneti Marelli S.p.A.