Patents by Inventor Kenneth Karg

Kenneth Karg 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).

  • Apparatus and method for suppressing mechanical resonance in a mass transit vehicle
    Publication number: 20050164711
    Abstract: A mass transit vehicle traction motor control system includes an automatic control block for receiving and processing a tachometer signal having a first resonance signal superimposed thereon to produce a rate request signal having a corresponding second resonance signal superimposed thereon. A filter is provided for decreasing an amplitude of the second resonance signal whereupon the rate request signal is isolated therefrom. A communication and control block and a propulsion and control block co-act to process the isolated rate request signal to produce a speed control signal that is configured to cause a traction motor of a mass transit vehicle to provide motive force to the mass transit vehicle at a rate related to the value of the speed control signal.
    Type: Application
    Filed: January 27, 2004
    Publication date: July 28, 2005
    Inventors: Jian Shen, Fred Marton, Linda Clawson, Kenneth Karg