Patents by Inventor Ruediger Fehrmann

Ruediger Fehrmann 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).

  • Publication number: 20050145220
    Abstract: A method and device for controlling an internal combustion engine in which a first variable characterizing the pressure in the combustion chamber of at least one cylinder in the internal combustion engine is detected by at least one sensor. A second variable is determined on the basis of the first variable. Features which are assigned to different partial injections are obtained by forming the difference within the second variable.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 7, 2005
    Inventors: Jens Damitz, Wolfram Gerwing, Ruediger Fehrmann, Matthias Schueler, Tobias Kress
  • Publication number: 20050145219
    Abstract: A device and a method for controlling an internal combustion engine, where a first variable characterizing the pressure in the combustion chamber of at least one cylinder of the internal combustion engine is measured by at least one sensor. A second variable characterizing the energy released during the combustion is ascertained from the first variable. When a threshold value of the second variable is exceeded, a third variable characterizing the combustion process is detected.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 7, 2005
    Inventors: Franz Raichle, Jens Damitz, Wolfram Gerwing, Ruediger Fehrmann, Wolfgang Fischer, Matthias Schueler, Michael Kessler, Tobias Kress
  • Patent number: 6832136
    Abstract: A device and a method for controlling a drive unit of a vehicle. Starting from the position of an operating element, a power determining signal may be preselected. The actuator element is controlled as a function of a filtered power determining signal. The signal is filtered with a filter having at least one high-pass filter and one low-pass filter connected in parallel. The filtering is performed so that the filtered signal has at least one corresponding pulse in a transition to a modified signal.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: December 14, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Huber, Horst Wagner, Ruediger Fehrmann
  • Patent number: 6820592
    Abstract: A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/or the location of the maximum value of the change, is determined on the basis of this first variable. This second variable serves to control operating parameters of the internal combustion engine in an open-loop and/or a closed-loop manner.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: November 23, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Buck, Jens Damitz, Dirk Samuelsen, Ruediger Fehrmann, Matthias Schueler
  • Patent number: 6675787
    Abstract: A device and a method are described for controlling an internal combustion engine, in which a control deviation and a governor are allocated to each cylinder of the internal combustion engine, each governor preselecting a cylinder-specific triggering signal on the basis of the allocated control deviation. Cylinder-specific actual values are ascertained on the basis of a signal from a sensor arranged in the exhaust train and are compared to a setpoint value. Triggering signals for the cylinder-individual control of the fuel quantity and/or air quantity are preselected on the basis of the comparison.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: January 13, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Jens Damitz, Dirk Samuelsen, Ruediger Fehrmann, Matthias Schueler
  • Patent number: 6665607
    Abstract: A method and a device are described for controlling an internal combustion engine. A manipulated variable is specifiable on the basis of at least one measured quantity. The measured quantity is filterable by at least one filter. An excitation variable is superimposed on the manipulated variable, and the properties of the filter are determined on the basis of the resulting reaction of the measured quantity.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: December 16, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Peter Skala, Dirk Samuelsen, Ruediger Fehrmann, Markus Jung, Gabriel Scolan
  • Publication number: 20030127073
    Abstract: A method and an apparatus for controlling an internal combustion engine are described. At least one sensor serves to detect a first variable that characterizes the pressure in the combustion chamber of at least one cylinder. A second variable, which characterizes the maximum value of the change and/or the location of the maximum value of the change, is determined on the basis of this first variable. This second variable serves to control operating parameters of the internal combustion engine in an open-loop and/or a closed-loop manner.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 10, 2003
    Inventors: Rainer Buck, Jens Damitz, Dirk Samuelsen, Ruediger Fehrmann, Matthias Schueler
  • Publication number: 20020152007
    Abstract: A device and a method for controlling a drive unit of a vehicle are described. Starting from the position of an operating element, a power determining signal may be preselected. The actuator element is controlled as a function of a filtered power determining signal. The signal is filtered with a filter having at least one high-pass filter and one low-pass filter connected in parallel. The filtering is performed so that the filtered signal has at least one corresponding pulse in a transition to a modified signal.
    Type: Application
    Filed: May 7, 2002
    Publication date: October 17, 2002
    Inventors: Andreas Huber, Horst Wagner, Ruediger Fehrmann
  • Patent number: 6446605
    Abstract: A method and a device for controlling an internal combustion engine, in particular an internal combustion engine having a common rail system. A pump delivers fuel into an accumulator. A sensor signal, which characterizes the fuel pressure prevailing in the accumulator, is detected. On the basis of a filtered sensor signal, a correction value is able to be preset for correcting the sensor signal.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: September 10, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Ruediger Fehrmann, Andreas Kellner
  • Publication number: 20020120387
    Abstract: A method and a device are described for controlling an internal combustion engine. A manipulated variable is specifiable on the basis of at least one measured quantity. The measured quantity is filterable by at least one filter. An excitation variable is superimposed on the manipulated variable, and the properties of the filter are determined on the basis of the resulting reaction of the measured quantity.
    Type: Application
    Filed: August 6, 2001
    Publication date: August 29, 2002
    Inventors: Peter Skala, Dirk Samuelsen, Ruediger Fehrmann, Markus Jung, Gabriel Scolan
  • Publication number: 20020096157
    Abstract: A device and a method are described for controlling an internal combustion engine, in which a control deviation and a governor are allocated to each cylinder of the internal combustion engine, each governor preselecting a cylinder-specific triggering signal on the basis of the allocated control deviation. Cylinder-specific actual values are ascertained on the basis of a signal from a sensor arranged in the exhaust train and are compared to a setpoint value. Triggering signals for the cylinder-individual control of the fuel quantity and/or air quantity are preselected on the basis of the comparison.
    Type: Application
    Filed: December 17, 2001
    Publication date: July 25, 2002
    Inventors: Jens Damitz, Dirk Samuelsen, Ruediger Fehrmann, Matthias Schueler
  • Patent number: 6250144
    Abstract: A method and a device for correcting for tolerances in a transmitter wheel are described. The transmitter wheel has a plurality of approximately equidistant marks that are scanned by a pickup. The pickup supplies a pulse train on the basis of which measured values are formed, with correction values being determined on the basis of a comparison of the individual measured values with a reference value. The measured values are filtered with at least one first and one second frequency-selective filtering.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: June 26, 2001
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Birk, Dirk Samuelsen, Peter Rupp, RĂ¼diger Fehrmann