Patents by Inventor Daniel Hofacker

Daniel Hofacker 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 and device for detecting blocking or sluggishness of a DC motor
    Patent number: 8922149
    Abstract: The invention relates to a method for detecting blocking or sluggishness (M1, M3) of a DC motor (2). The method comprises the following steps: applying a voltage pulse (Uv,t=Os) to the DC motor (2); monitoring a motor current (IMotor) flowing through the DC motor (2); detecting a maximum value of the motor current (IMotor) following the application of the voltage pulse; checking whether a change in the motor current (IMotor) after reaching the maximum value exceeds a specific amount; signalling the blocking or the sluggishness (M1, M3) of the DC motor (2) if the change in the motor current (IMotor) after reaching the maximum value exceeds the specific amount.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: December 30, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Malich, Volker Lurk, Gerald Roos, Nikolas Haberl, Frank Fischer, Christian Poddey, Michael Koerner, Jan Van Goethem, Daniel Hofacker, Tobias Stiefel
  • METHOD AND DEVICE FOR DETECTING BLOCKING OR SLUGGISHNESS OF A DC MOTOR
    Publication number: 20130057187
    Abstract: The invention relates to a method for detecting blocking or sluggishness (M1, M3) of a DC motor (2). The method comprises the following steps: applying a voltage pulse (Uv,t=Os) to the DC motor (2); monitoring a motor current (IMotor) flowing through the DC motor (2); detecting a maximum value of the motor current (IMotor) following the application of the voltage pulse; checking whether a change in the motor current (IMotor) after reaching the maximum value exceeds a specific amount; signalling the blocking or the sluggishness (M1, M3) of the DC motor (2) if the change in the motor current (IMotor) after reaching the maximum value exceeds the specific amount.
    Type: Application
    Filed: January 25, 2011
    Publication date: March 7, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Thomas Malich, Volker Lurk, Gerald Roos, Nikolas Haberl, Frank Fischer, Christian Poddey, Michael Koerner, Jan Van Goethem, Daniel Hofacker, Tobias Stiefel