Patents by Inventor Markus Holm

Markus Holm 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 of flatness control of a strip and a control system therefor
    Patent number: 9399245
    Abstract: A method of providing flatness control for rolling a strip in a mill including a plurality of rolls controllable by actuators. The method includes the steps of: receiving flatness measurement data pertaining to a flatness of the strip; determining a flatness error as a difference between a reference flatness of the strip and the flatness measurement data; determining an adjusted flatness error based on the flatness error and weights for actuator position combinations which provide a flatness effect below a threshold value; and utilizing the adjusted flatness error for the control units to control the actuators to thereby control the flatness of the strip. A computer program product and a control system for carrying out the above method are also presented herein.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: July 26, 2016
    Assignee: ABB Research Ltd.
    Inventors: Markus Holm, Per-Erik Moden
  • Method Of Flatness Control Of A Strip And A Control System Therefor
    Publication number: 20120253502
    Abstract: A method of providing flatness control for rolling a strip in a mill including a plurality of rolls controllable by actuators. The method includes the steps of: receiving flatness measurement data pertaining to a flatness of the strip; determining a flatness error as a difference between a reference flatness of the strip and the flatness measurement data; determining an adjusted flatness error based on the flatness error and weights for actuator position combinations which provide a flatness effect below a threshold value; and utilizing the adjusted flatness error for the control units to control the actuators to thereby control the flatness of the strip. A computer program product and a control system for carrying out the above method are also presented herein.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 4, 2012
    Inventors: Markus Holm, Per-Erik Moden