Patents by Inventor Jean-Marc Fries

Jean-Marc Fries 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 operating an internal combustion engine, computer program product, computer program, and control and/or regulation device for an internal combustion engine
    Patent number: 8573189
    Abstract: In a method for operating an internal combustion engine, a computer program product, a computer program, and a control and/or regulation device for the internal combustion engine, the internal combustion engine is allowed to be operated using an enriched air/fuel mixture, without exceeding a rich combustion limit of the internal combustion engine. In the process, a setpoint value for a variable characterizing the air/fuel mixture is specified in at least one operating state of the internal combustion engine. A value of at least one variable characterizing the quality of combustion is determined. The determined value for the at least one variable characterizing the quality of combustion is compared to a first specified threshold value. If the determined value for the at least one variable characterizing the quality of combustion deviates from the first specified threshold value by an amount that exceeds a second specified threshold value, then the setpoint value is corrected.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: November 5, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Guido Porten, Thomas Wortmann, Jean-Marc Fries
  • Method for operating an internal combustion engine, computer program product, computer program, and control and/or regulation device for an internal combustion engine
    Publication number: 20070199551
    Abstract: In a method for operating an internal combustion engine, a computer program product, a computer program, and a control and/or regulation device for the internal combustion engine, the internal combustion engine is allowed to be operated using an enriched air/fuel mixture, without exceeding a rich combustion limit of the internal combustion engine. In the process, a setpoint value for a variable characterizing the air/fuel mixture is specified in at least one operating state of the internal combustion engine. A value of at least one variable characterizing the quality of combustion is determined. The determined value for the at least one variable characterizing the quality of combustion is compared to a first specified threshold value. If the determined value for the at least one variable characterizing the quality of combustion deviates from the first specified threshold value by an amount that exceeds a second specified threshold value, then the setpoint value is corrected.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 30, 2007
    Inventors: Guido Porten, Thomas Wortmann, Jean-Marc Fries