Patents by Inventor Ralf Schnee

Ralf Schnee 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 detecting combustion misfires in a multi-cylinder internal combustion engine
    Patent number: 6450017
    Abstract: The invention relates to a method for detecting combustion misfires in a multi-cylinder internal combustion engine. Combustion misfires are detected from data for the rough running of individual cylinders via a comparison with threshold values at operating points stored in a characteristic field. These data are determined within the engine. The combustion misfire detection is suppressed below an rpm-dependent zero-load characteristic line. The zero-load characteristic line is continuously adapted to the actually present lowest load at corresponding rpm values during vehicle operation.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 17, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Heiko Oertel, Andrea Lohmann, Juergen Schwabe, Ralf Schnee, Uwe Buck, Peter Wiltsch, Heinz Viel
  • Method for detecting combustion misfires in a multi-cylinder internal combustion engine
    Publication number: 20010008082
    Abstract: The invention relates to a method for detecting combustion misfires in a multi-cylinder internal combustion engine. Combustion misfires are detected from data for the rough running of individual cylinders via a comparison with threshold values at operating points stored in a characteristic field. These data are determined within the engine. The combustion misfire detection is suppressed below an rpm-dependent zero-load characteristic line. The zero-load characteristic line is continuously adapted to the actually present lowest load at corresponding rpm values during vehicle operation.
    Type: Application
    Filed: January 16, 2001
    Publication date: July 19, 2001
    Inventors: Heiko Oertel, Andrea Lohmann, Juergen Schwabe, Ralf Schnee, Uwe Buck, Peter Wiltsch, Heinz Viel