Patents by Inventor Juergen Muenzenmaier

Juergen Muenzenmaier 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 atmospheric pressure on the basis of the pressure in the intake line of an internal combustion engine
    Patent number: 6834542
    Abstract: A method for determining the atmospheric pressure on the basis of the intake pressure measured downstream of an air filter in an intake line of an internal combustion engine, and of the air mass flow rate measured downstream of the air filter, and optionally of the intake air temperature. The calculation of the atmospheric pressure and the calculation of a degree of contamination of the air filter are separated by standardizing the measured air mass flow rates at two predefined values. Furthermore, during the calculation a characteristic curve for the degree of contamination of the air filter as a function of the determined pressure difference at the predefined air mass flow rates is used, and a characteristic diagram for the degree of contamination of the air filter as a function of the standardized air mass flow rate and of the determined pressure difference is used.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: December 28, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Werner Aschner, Ulrich Engel, Hans Fausten, Juergen Muenzenmaier
  • Method for determining the atmospheric pressure on the basis of the pressure in the intake line of an internal combustion engine
    Publication number: 20030221480
    Abstract: A method for determining the atmospheric pressure on the basis of the intake pressure measured downstream of an air filter in an intake line of an internal combustion engine, and of the air mass flow rate measured downstream of the air filter, and optionally of the intake air temperature. The calculation of the atmospheric pressure and the calculation of a degree of contamination of the air filter are separated by standardizing the measured air mass flow rates at two predefined values. Furthermore, during the calculation a characteristic curve for the degree of contamination of the air filter as a function of the determined pressure difference at the predefined air mass flow rates is used, and a characteristic diagram for the degree of contamination of the air filter as a function of the standardized air mass flow rate and of the determined pressure difference is used.
    Type: Application
    Filed: February 19, 2003
    Publication date: December 4, 2003
    Inventors: Werner Aschner, Ulrich Engel, Hans Fausten, Juergen Muenzenmaier