Patents by Inventor Dara Daniel Torkzadeh

Dara Daniel Torkzadeh 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).

  • Damping device and damping method for suppressing torsional oscillations in a drivetrain
    Patent number: 7460944
    Abstract: A damping device comprises a device (4, 7) for determining a mechanical state variable (??MODEL, ??ACTUAL) reproducing the torsion of a drivetrain (3) of an internal combustion engine (1) and an actuator (2) to activate an internal combustion engine (1) with a control variable as a function of the mechanical state variable (??MODEL, ??ACTUAL). It is proposed that the mechanical state variable (??MODEL, ??ACTUAL) be determined by a predictor element (4) that contains a model of the drivetrain (3) and/or the internal combustion engine (1).
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: December 2, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventors: Julian Baumann, Thomas Schlegl, Dara Daniel Torkzadeh
  • Damping system using a LOLIMOT model to counteract drive train oscillations
    Patent number: 7003392
    Abstract: A damping device comprises a recording device (4, 7) for determining a mechanical state variable (??MODELL, ??IST) reflecting the torsion of a drive train (3) of an internal combustion engine (1), and a control device (2) for controlling an internal combustion engine (1) with a correcting variable as a function of the mechanical state variable (??MODELL, ??IST. It is proposed that the mechanical state variable (??MODELL, ??IST) be determined by a predictor element (4) that contains a model of the drive train (3) and/or of the internal combustion engine (1).
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 21, 2006
    Assignee: Siemens Aktiengesellschaft
    Inventors: Julian Baumann, Thomas Schlegl, Dara Daniel Torkzadeh