Patents by Inventor Bernhard Focking

Bernhard Focking 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 actuation control for stopping an electrical drive, by means of closed-loop position control, in a predetermined nominal position
    Patent number: 6756762
    Abstract: The invention reduces the oscillation of the rotation speed regulator when stationary—despite low position resolution and a high minimum rotation speed resulting from this—by switching the closed-loop control structure, when the drive is moved into the nominal position, in which case the closed-loop control structure does not need to include a current regulator when stationary. The control voltage is predetermined directly by the rotation speed regulator (2′), which is in the form of a pure P-regulator. If the rotor is deflected, then dynamic negative feedback is carried out by differentiation (9) of the position (&phgr;). The position control loop (1′), which is at a higher level than the rotation speed control loop (2′), is in the form of a PI regulator in order that no permanent position errors can occur.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: June 29, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bernhard Focking
  • Method and actuation control for stopping an electrical drive, by means of closed-loop position control, in a predetermined nominal position
    Publication number: 20020113566
    Abstract: The invention reduces the oscillation of the rotation speed regulator when stationary—despite low position resolution and a high minimum rotation speed resulting from this—by switching the closed-loop control structure, when the drive is moved into the nominal position, in which case the closed-loop control structure does not need to include a current regulator when stationary. The control voltage is predetermined directly by the rotation speed regulator (2′), which is in the form of a pure P-regulator. If the rotor is deflected, then dynamic negative feedback is carried out by differentiation (9) of the position (&phgr;). The position control loop (1′), which is at a higher level than the rotation speed control loop (2′), is in the form of a PI regulator in order that no permanent position errors can occur.
    Type: Application
    Filed: May 3, 2001
    Publication date: August 22, 2002
    Applicant: Siemens Aktiengesellschaft
    Inventor: Bernhard Focking