Patents by Inventor Andreas Krammer

Andreas Krammer 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 controlling the nox concentration in the exhaust gas of an internal combustion engine
    Patent number: 9115623
    Abstract: In a method for controlling the NOx concentration in the exhaust gas of an internal combustion engine in which an NOx control deviation is calculated from an actual NOx value and a desired NOx value, a control value is calculated based on the NOx control deviation via an NOx controller and by means of the control value at least one condition of the cylinder inlet flow volume of the internal combustion engine is adjusted in that, additionally, an adaption injection begin is determined in dependence on the control value of the NOx controller, and the injection begin is changed by the adaption injection begin.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: August 25, 2015
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Michael Prothmann, Andreas Flohr, Joerg Remele, Martin Lehmann, Alexander Bernhard, Andreas Krammer
  • METHOD FOR CONTROLLING THE NOx CONCENTRATION IN THE EXHAUST GAS OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20140083083
    Abstract: In a method for controlling the NOx concentration in the exhaust gas of an internal combustion engine in which an NOx control deviation is calculated from an actual NOx value and a desired NOx value, a control value is calculated based on the NOx control deviation via an NOx controller and by means of the control value at least one condition of the cylinder inlet flow volume of the internal combustion engine is adjusted in that, additionally, an adaption injection begin is determined in dependence on the control value of the NOx controller, and the injection begin is changed by the adaption injection begin.
    Type: Application
    Filed: October 8, 2013
    Publication date: March 27, 2014
    Applicant: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Michael Prothmann, Andreas Flohr, Joerg Remele, Martin Lehmann, Alexander Bernhard, Andreas Krammer