Patents by Inventor Wolfgang Benzing

Wolfgang Benzing 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 sensorless drive control of an electric vehicle and drive control operating by the method
    Publication number: 20030127289
    Abstract: A method for the sensorless drive control of an electric vehicle, especially an industrial truck, driven by a rotating field motor operated by a power converter, the power converter being supplied by an associated constant voltage source, includes calculating actual values of the flow chain of the rotating field motor and at least one other variable dependant on the actual values from a recorded stator voltage and at least n−1 measured phase flows, and regulating the stator flow of the rotating field drive, which is defined by the phase flows, based upon the actual values.
    Type: Application
    Filed: January 17, 2003
    Publication date: July 10, 2003
    Inventors: Bernd Peter Elgas, Karl-Heinz Lust, Josef Wiesing, Wolfgang Benzing, Manfred Dollinger