Patents by Inventor Renzo Ruggiani

Renzo Ruggiani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for estimation of the quantity of fresh air present in the intake and exhaust manifolds of an internal combustion engine with a recirculation circuit
    Patent number: 6718942
    Abstract: Method for estimation of the quantity of fresh air present in the intake and exhaust manifolds of an internal combustion engine with a recirculation circuit, by an observer, applied to a system of the third order, which models the physical system constituted by the intake and exhaust manifolds; the system is obtained from differential equations, which regulate the processes of mixing of the gases, and from an equation which represents the behavior of a lambda sensor.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: April 13, 2004
    Assignee: Magneti Marelli Powertrain SPA
    Inventors: Gilberto Burgio, Alessandro Palazzi, Renzo Ruggiani, Mauro Suffritti
  • Method for estimation of the quantity of fresh air present in the intake and exhaust manifolds of an internal combustion engine with a recirculation circuit
    Publication number: 20020152016
    Abstract: Method for estimation of the quantity of fresh air present in the intake and exhaust manifolds of an internal combustion engine with a recirculation circuit, by an observer, applied to a system of the third order, which models the physical system constituted by the intake and exhaust manifolds; the system is obtained from differential equations, which regulate the processes of mixing of the gases, and from an equation which represents the behaviour of a lambda sensor.
    Type: Application
    Filed: January 11, 2002
    Publication date: October 17, 2002
    Inventors: Gilberto Burgio, Alessandro Palazzi, Renzo Ruggiani, Mauro Suffritti