Patents by Inventor Andreas Schimdt

Andreas Schimdt 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 OPERATING A TRANSMISSION DEVICE HAVING A PLURALITY OF FRICTION-FIT SHIFT ELEMENTS AND AT LEAST ONE FORM-FIT SHIFT ELEMENT
    Publication number: 20120283064
    Abstract: A method of operating a transmission device (3) having a plurality of frictionally engaging shift elements (B, C, D and E) and at least one form-locking shift element (A, F) for implementing different transmission ratios. Upon a requested change in operating state of the transmission device (3), the at least one form-locking shift element (A) is transferred into an at least nearly load-free state, during which the form-locking shift element (A) is transferred from an engaged to a disengaged operating state by increasing the transfer capability of at least one frictionally engaging shift element (E), which is not engaged in the power flow of the transmission device (3) either to represent the present operating state or to represent the requested operating state.
    Type: Application
    Filed: December 21, 2010
    Publication date: November 8, 2012
    Applicant: ZF Friedrichshafen AG
    Inventors: Valentine Herbeth, Jorg Arnold, Georg Mihatsch, Andreas Schimdt, Thilo Schmidt, Gabor Diosi, Christoph Margraf