Patents by Inventor Thomas Foeldi

Thomas Foeldi 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).

  • Patent number: 5157609
    Abstract: In order to adapt the shifting characteristics of an electrohydraulically controlled, automatically shifting transmission continuously to the dirver's driving style or to a just existing or real time traffic situation, the driving speed (v), the lateral acceleration (aq), the longitudinal acceleration (alb), the longitudinal deceleration (alv) and the engine rotational speed (nmot) in addition to the throttle valve position alpha, are detected and by way of characteristic diagrams and a linking function are added to form a parameter from which, by filtering, a driving activity is determined. This driving activity is finally used for the selection of a shifting program from a plurality of shifting programs ranging from a consumption-optimized shifting program (SKF1) to a power-optimized shifting program (SKF5).
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: October 20, 1992
    Assignees: Dr. Ing. h.c.F. Porsche Aktiengesellschaft, Robert Bosch GmbH, Zahnradfabrik Friedrichshafen AG
    Inventors: Heinz Stehle, Thomas Wehr, Joseph Petersmann, Willi Seidel, Ludwig Hamm, Thomas Foeldi, Udo Judaschke, Gerhard Eschrich, Ronald Schwamm, Wolfgang Runge, Wolf-Dieter Gruhle, Peter Wendel
  • Patent number: 5025684
    Abstract: In order to improve the shifting characteristics of an electrohydraulically controlled, automatically shifting transmission particularly during cornering and braking, the driving speed (v), the lateral acceleration (aq), and the time variation of the throttle valve position are sensed in addition to the throttle valve position (alpha) and the engine rotational speed (nmot). From the time variation of the throttle valve position, a signal can be derived for the prevention of an upshifting operation since a motor vehicle driver's foot moves away faster from the accelerator pedal when approaching a bend in the road than would be the case for the normal deceleration of the motor vehicle.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: June 25, 1991
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Heinz Stehle, Thomas Wehr, Joseph Petersmann, Willi Seidel, Ludwig Hamm, Thomas Foeldi, Gerhard Eschrich, Ronald Schwamm, Wolfgang Runge, Wolf-Dieter Gruhle, Peter Wendel