Patents by Inventor Anton Welte

Anton Welte 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: 6671602
    Abstract: The invention relates to a method for manually stipulating the transmission ratio of a continuously variable transmission (CVT) for a motor vehicle. The CVT comprises a control device, a shifting or selecting device, a starting element and a variator for adjusting the transmission ratio which is driven, in particular, by an internal combustion engine. The control device processes input signals derived from a driver-vehicle system within the framework of an operational strategy for stipulating the transmission ratio, the rotational speed of the drive motor or a variator input rotational speed. In a first automatic operation mode, the operational strategy automatically selects the transmission multiplication. In a second manual operational mode, the driver can directly intervene, via the shifting or selecting device, in the selection of the transmission multiplication.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: December 30, 2003
    Assignee: ZF Batavia L.L.C.
    Inventors: Patrick Speicher, Ralf Vorndran, Anton Welte
  • Patent number: 5688204
    Abstract: In a shifting device such as generally used in automatic transmissions, a regulating device (15) is provided by the swiveling of which to a shifting gate (13) the automatic multiplication stages can be preselected. Besides, the regulating device can be transferred to a second shifting gate (14) via a transverse gate (17). According to the invention, in the second shifting gate (14) a characteristic field (1) is influenced by a continuously variable incremental or decremental change of individual operation parameters or a combination of at least two parameters. The operation parameters consist of the engine speed, the transmission ratio and the output speed.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: November 18, 1997
    Assignee: ZF Friedrichshafen AG
    Inventors: Wolfgang Runge, Walter Frei, Anton Welte