Patents by Inventor Jacky OELSCHER

Jacky OELSCHER 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 testing the function of a fuel tank system of an internal combustion engine
    Patent number: 11542894
    Abstract: A method for testing the function of a fuel tank system of an internal combustion engine, the fuel tank system, whereby a gas transport device is operated and a shutoff valve is actuated by means of PWM, whereby the shutoff valve is opened and closed multiple times according to a PWM signal for implementing a defined opening state, a pressure oscillation of the purge gas, which results due to the corresponding opening and closing movements of the shutoff valve, being ascertained and evaluated with the aid of the pressure sensor according to a frequency diagnosis, and a distinction being made between an operability and a malfunction, based on the result of the evaluation.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: January 3, 2023
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Rene Fink, Stephan Wassmann, Jacky Oelscher, Harm Pralle, Bjoern Froehlich, Silke Weddig, Georg Dieterle, Aleksandar Tesic
  • METHOD FOR TESTING THE FUNCTION OF A FUEL TANK SYSTEM OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20220290638
    Abstract: A method for testing the function of a fuel tank system of an internal combustion engine, the fuel tank system, whereby a gas transport device is operated and a shutoff valve is actuated by means of PWM, whereby the shutoff valve is opened and closed multiple times according to a PWM signal for implementing a defined opening state, a pressure oscillation of the purge gas, which results due to the corresponding opening and closing movements of the shutoff valve, being ascertained and evaluated with the aid of the pressure sensor according to a frequency diagnosis, and a distinction being made between an operability and a malfunction, based on the result of the evaluation.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Applicant: Volkswagen Aktiengesellschaft
    Inventors: Rene FINK, Stephan WASSMANN, Jacky OELSCHER, Harm PRALLE, Bjoern FROEHLICH, Silke WEDDIG, Georg DIETERLE, Aleksandar TESIC