Patents by Inventor Wulf-Siegfried Bayha

Wulf-Siegfried Bayha 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 for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle
    Patent number: 7260462
    Abstract: A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provide a method by which a rapid response characteristic and a high adjustment precision of the electromagnetic valve are made possible. The specific properties of a hydraulic system in which electromagnetic valves are used, in particular the rigidity and damping, are not constant but instead change considerably under different operating states of the hydraulic system and/or with different performance quantities of the electromagnetic valve. These different properties are taken into account through the change in the clock frequency as a function of performance quantities of the electromagnetic valve.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: August 21, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Norbert Keim, Christof Ott, Wulf-Siegfried Bayha, Martin Krohn, Bernd Huber, Jens Dorfschmid, Juergen Semler
  • Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle
    Publication number: 20040225429
    Abstract: A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provide a method by which a rapid response characteristic and a high adjustment precision of the electromagnetic valve are made possible. The specific properties of a hydraulic system in which electromagnetic valves are used, in particular the rigidity and damping, are not constant but instead change considerably under different operating states of the hydraulic system and/or with different performance quantities of the electromagnetic valve. These different properties are taken into account through the change in the clock frequency as a function of performance quantities of the electromagnetic valve.
    Type: Application
    Filed: February 6, 2004
    Publication date: November 11, 2004
    Inventors: Norbert Keim, Christof Ott, Wulf-Siegfried Bayha, Martin Krohn, Bernd Huber, Jens Dorfschmid, Juergen Semler