Patents by Inventor Olaf Erik Herrmann

Olaf Erik Herrmann 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).

  • System for controlling the exhaust gas return rate by means of virtual NOx sensors with adaptation via a NOx sensor
    Patent number: 8700291
    Abstract: The present invention relates to a method for adjusting a mass flow of an exhaust gas return of an internal combustion engine, taking into consideration a NOx behavior, wherein a controlling system provides a coupling of a virtual NOx determination with a real NOx control. Furthermore, an internal combustion engine with appropriate controlling means is proposed.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: April 15, 2014
    Assignee: Fev Motorentechink GmbH
    Inventor: Olaf Erik Herrmann
  • CONTROL OF A MOTOR VEHICLE INTERNAL COMBUSTION ENGINE
    Publication number: 20100300069
    Abstract: The present invention relates to a method for operating a motor vehicle internal combustion engine having a controller for adjusting NOx emissions in the exhaust gas, wherein a NOx controller is combined with a combustion controller. A control unit of an internal combustion engine is further proposed, said control unit comprising first control means for performing cylinder pressure-based combustion control, and second control means for performing NOx control, wherein the first and second control means are linked to each other.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 2, 2010
    Applicant: FEV MOTORENTECHNIK GMBH
    Inventors: Olaf Erik Herrmann, Schnorbus Thorsten, Matthias Lamping, Ludger Ruhkamp
  • SYSTEM FOR CONTROLLING THE EXHAUST GAS RETURN RATE BY MEANS OF VIRTUAL NOX SENSORS WITH ADAPTATION VIA A NOX SENSOR
    Publication number: 20100131181
    Abstract: The present invention relates to a method for adjusting a mass flow of an exhaust gas return of an internal combustion engine, taking into consideration a NOx behavior, wherein a controlling system provides a coupling of a virtual NOx determination with a real NOx control. Furthermore, an internal combustion engine with appropriate controlling means is proposed.
    Type: Application
    Filed: April 26, 2007
    Publication date: May 27, 2010
    Applicant: FEV MOTORENTECHNIK GMBH
    Inventor: Olaf Erik Herrmann