Patents by Inventor Vladimir Kokotovic

Vladimir Kokotovic 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 controlling an electromagnetic valve actuator
    Patent number: 6644253
    Abstract: Four preferred methods are disclosed for controlling an electromagnetic valve actuator having a valve head that moves between an open position and a closed position against a valve seat, an armature coupled to the valve head, and a solenoid coil near the armature. The preferred methods include: measuring the position of the armature, estimating the speed of the armature based on the measured position of the armature, computing a desired signal based on the measured position, the estimated speed, and a reference trajectory, and controlling the solenoid coil to softly seat the armature against the solenoid coil and the valve head against the valve seat based on the computed desired signal.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: November 11, 2003
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Ibrahim Haskara, Lawrence Mianzo, Vladimir Kokotovic
  • Method of controlling an electromagnetic valve actuator
    Publication number: 20030106511
    Abstract: Four preferred methods are disclosed for controlling an electromagnetic valve actuator having a valve head that moves between an open position and a closed position against a valve seat, an armature coupled to the valve head, and a solenoid coil near the armature. The preferred methods include: measuring the position of the armature, estimating the speed of the armature based on the measured position of the armature, computing a desired signal based on the measured position, the estimated speed, and a reference trajectory, and controlling the solenoid coil to softly seat the armature against the solenoid coil and the valve head against the valve seat based on the computed desired signal.
    Type: Application
    Filed: March 28, 2002
    Publication date: June 12, 2003
    Inventors: Ibrahim Haskara, Lawrence Mianzo, Vladimir Kokotovic