Patents by Inventor Francois Ratinet

Francois Ratinet 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 controlling the opening of a throttle valve body assembly
    Patent number: 7699038
    Abstract: The invention concerns a method for controlling the opening of an internal combustion engine throttle valve body assembly, characterized in that it includes the following steps: specifically mapping the engine, limiting the opening angle of the throttle valve body assembly, and defining particular operating points requiring replacement of the usual mapping by the specific mapping.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: April 20, 2010
    Assignee: Renault Sport Technologies
    Inventors: Christophe Laurens, Francois Ratinet, Frederic Thevenod
  • Method for Controlling the Opening of a Throttle Valve Body Assembly
    Publication number: 20080289601
    Abstract: The invention concerns a method for controlling the opening of an internal combustion engine throttle valve body assembly, characterized in that it includes the following steps: specifically mapping the engine, limiting the opening angle of the throttle valve body assembly, and defining particular operating points requiring replacement of the usual mapping by the specific mapping.
    Type: Application
    Filed: June 14, 2006
    Publication date: November 27, 2008
    Inventors: Christophe Laurens, Francois Ratinet, Frederic Thevenod
  • Device and method for diagnosing the condition of a probe upstream from a catalytic converter
    Patent number: 6192310
    Abstract: An apparatus and method for diagnosing the condition of a sensor in an internal combustion engine upstream from the catalytic converter. The diagnosis utilizes a signal from a second non-linear probe downstream from the catalytic converter. This signal is processed to give a signal that is filtered. The filtered signal is in turn compared with maximum and minimum values. The upstream probe is considered to be correct if the signal falls between these two values or faulty if it falls outside the values.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: February 20, 2001
    Assignee: Renault
    Inventors: Eric Marcheguet, Vasco Afonso, Francois Ratinet