Patents by Inventor Martin ZURFLUH

Martin ZURFLUH 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 driving brushless direct-current motor during displacement of actuating element
    Patent number: 8994303
    Abstract: During displacement of an actuating element to a target position, a brushless direct-current motor is driven by a driving commutation pattern derived from rotor position signals. After the target position is reached the brushless direct-current motor is transferred to a holding mode in which it is driven by a commutation pattern providing a required holding torque. In the holding mode the holding current necessary for providing the required holding torque is minimized by an iterative holding current reduction method to a holding current value guaranteeing the required holding torque.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Adrian Huwiler, Ladislav Kucera, Daniel Schoop, Martin Zurfluh
  • METHOD AND DEVICE FOR DRIVING BRUSHLESS DIRECT-CURRENT MOTOR DURING DISPLACEMENT OF ACTUATING ELEMENT
    Publication number: 20130193889
    Abstract: During displacement of an actuating element to a target position, a brushless direct-current motor is driven by a driving commutation pattern derived from rotor position signals. After the target position is reached the brushless direct-current motor is transferred to a holding mode in which it is driven by a commutation pattern providing a required holding torque. In the holding mode the holding current necessary for providing the required holding torque is minimized by an iterative holding current reduction method to a holding current value guaranteeing the required holding torque.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 1, 2013
    Applicant: Siemens Aktiengesellschaft
    Inventors: Adrian HUWILER, Ladislav KUCERA, Daniel SCHOOP, Martin ZURFLUH