Patents by Inventor Martin KARG

Martin KARG 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 and control device for operating an internal combustion engine
    Patent number: 11208961
    Abstract: A method for operating an internal combustion engine having at least one fuel injector that is activated for opening and closing via a solenoid valve of a respective fuel injector. Commencing with the activation of the fuel injector for opening, structure-borne sound waves emitted by the fuel injector over the time are detected by measurement. A structure-borne sound wave signal detected by measurement over the time is evaluated such that dependent on the amount of at least one maximum of the structure-borne sound wave signal and/or dependent on the number of the maximums of the structure-borne sound wave signal and/or in the presence of multiple maximums dependent on the time sequence and/or on the amount of the maximums, an operating state of the respective fuel injector is deduced.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: December 28, 2021
    Assignee: MAN Energy Solutions SE
    Inventors: Armin Weber, Martin Karg
  • METHOD AND CONTROL DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    Publication number: 20200224596
    Abstract: A method for operating an internal combustion engine having at least one fuel injector that is activated for opening and closing via a solenoid valve of a respective fuel injector. Commencing with the activation of the fuel injector for opening, structure-borne sound waves emitted by the fuel injector over the time are detected by measurement. A structure-borne sound wave signal detected by measurement over the time is evaluated such that dependent on the amount of at least one maximum of the structure-borne sound wave signal and/or dependent on the number of the maximums of the structure-borne sound wave signal and/or in the presence of multiple maximums dependent on the time sequence and/or on the amount of the maximums, an operating state of the respective fuel injector is deduced.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Inventors: Armin WEBER, Martin KARG