Patents by Inventor Helmut Hofstätter

Helmut Hofstätter 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 reducing the thermal load on an automatic transmission for a motor vehicle in emergency operating mode
    Patent number: 6632157
    Abstract: In an automatic transmission for a motor vehicle which is controlled by an electronic transmission control device which continuously exchanges signals with a digital engine electronic system of an internal combustion engine, to reduce the thermal load on the automatic transmission in emergency operating mode, a transmission-independent program module (M1) of the digital engine electronics system presets an admissible maximum engine torque for the emergency operating mode (M_mot_max_not).
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: October 14, 2003
    Assignee: ZF Batavia L.L.C.
    Inventors: Armin Gierling, Hans-Dieter Hengstler, Helmut Hofstätter