Patents by Inventor Hartwig Hellwig

Hartwig Hellwig 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 determining the amount of an operating medium in a motor vehicle
    Patent number: 7013225
    Abstract: The invention relates to a method for determining the fill quantity of an operating medium, in particular of the engine oil in a motor vehicle having a reservoir container of the operating medium and having a data processing device for determining the fill quantity of the operating medium. A fill level sensor for sensing the fill level is arranged in the reservoir container for the operating medium. In order to determine the fill level of the operating medium, operating states of the vehicle such as the temperature of the operating medium and the engine speed are also sensed. According to the invention, a characteristic variable for the engine load, for example the position of the accelerator pedal, the throttle valve position or the torque on the drive train are sensed. The fill quantity of the operating medium is determined from the sensed data by a data processing device.
    Type: Grant
    Filed: December 22, 2001
    Date of Patent: March 14, 2006
    Assignee: DaimlerChrysler AG
    Inventors: Thomas Guertler, Hartwig Hellwig, Klaus Land, Harald Ott, Martin-Kai Riedel
  • Method for determining the amount of an operating medium in a motor vehicle
    Publication number: 20040122603
    Abstract: The invention relates to a method for determining the fill quantity of an operating medium, in particular of the engine oil in a motor vehicle having a reservoir container of the operating medium and having a data processing device for determining the fill quantity of the operating medium. A fill level sensor for sensing the fill level is arranged in the reservoir container for the operating medium. In order to determine the fill level of the operating medium, operating states of the vehicle such as the temperature of the operating medium and the engine speed are also sensed. According to the invention, a characteristic variable for the engine load, for example the position of the accelerator pedal, the throttle valve position or the torque on the drive train are sensed. The fill quantity of the operating medium is determined from the sensed data by a data processing device.
    Type: Application
    Filed: February 3, 2004
    Publication date: June 24, 2004
    Inventors: Thomas Guertler, Hartwig Hellwig, Klaus Land, Harald Ott, Martin-Kai Riedel