Patents by Inventor Marc Rottner

Marc Rottner 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 a glow plug
    Patent number: 8656898
    Abstract: The invention relates to a method for controlling a glow plug to a target value of the surface temperature while the engine is running. An effective voltage is generated by pulse width modulation of a vehicle electrical system voltage. This effective voltage is applied to the glow plug. The electric resistance of the glow plug is measured and compared to a resistance value expected for the target value of the surface temperature. The effective voltage is varied as a function of the deviation of the measured value of the electric resistance from the expected value of the electric resistance. A pressure sensor of the glow plug is used to measure the combustion chamber pressure. The resistance value expected for the target value of the surface temperature is determined as a function of the combustion chamber pressure.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: February 25, 2014
    Assignee: Borgwarner Beru Systems GmbH
    Inventors: Martin Sackmann, Bernd Last, Marc Rottner, Hans Houben, Olaf Toedter
  • Method for the heating up of a ceramic glow plug
    Patent number: 8153936
    Abstract: Herein is described a method for the heating-up of a ceramic glow plug by applying a variable electric voltage to the glow plug. In accordance with the invention it is provided that, starting from a base value, the electric voltage increases in a time-averaged manner superproportional to the elapsed heating-up time. The invention relates also to a glow plug control unit for carrying out of such a method.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: April 10, 2012
    Assignee: BERU Aktiengesellschaft
    Inventors: Markus Kernwein, Jörg Stöckle, Olaf Toedter, Ganghua Rüan, Marc Rottner
  • METHOD FOR CONTROLLING A GLOW PLUG
    Publication number: 20110220073
    Abstract: The invention relates to a method for controlling a glow plug to a target value of the surface temperature while the engine is running, wherein an effective voltage is generated by pulse width modulation of a vehicle electrical system voltage and this effective voltage is applied to the glow plug, the electric resistance of the glow plug is measured and compared to a resistance value expected for the target value of the surface temperature, and the effective voltage is varied as a function of the deviation of the measured value of the electric resistance from the expected value of the electric resistance. According to the invention, a pressure sensor of the glow plug is used to measure the combustion chamber pressure and the resistance value expected for the target value of the surface temperature is determined as a function of the combustion chamber pressure.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 15, 2011
    Applicant: BorgWarner BERU Systems GmbH
    Inventors: Martin Sackmann, Bernd Last, Marc Rottner, Hans Houben, Olaf Toedter
  • Method for heating up of a ceramic glow plug and glow plug control unit
    Publication number: 20090008378
    Abstract: Herein is described a method for the heating-up of a ceramic glow plug by applying a variable electric voltage to the glow plug. In accordance with the invention it is provided that, starting from a base value, the electric voltage increases in a time-averaged manner superproportional to the elapsed heating-up time. The invention relates also to a glow plug control unit for carrying out of such a method.
    Type: Application
    Filed: June 30, 2008
    Publication date: January 8, 2009
    Inventors: Markus Kernwein, Jorg Stockle, Olaf Toedter, Ganghua Ruan, Marc Rottner