Patents by Inventor Gerhard Heid

Gerhard Heid 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: 5514051
    Abstract: A method and an arrangement for controlling an automatic transmission of a motor vehicle driven by an internal-combustion engine, in which the position of a throttle valve of the motor vehicle and the acceleration of the vehicle as the reaction thereto are determined and are related to one another. Subsequently, this relationship is compared with the relationship as it occurs during a normal drive on a level surface. As a function of the deviation between the actual relationship and the normal relationship, the ratios of the transmission are displaced in the direction of higher rotational engine speeds, which means that the ratio assigned to a throttle valve position and to a rotational engine speed will now be achieved at a lower rotational engine speed, or the rotational engine speed level is raised. For a stepped transmission, several characteristic shifting diagrams are provided and the displacement of the ratio is carried out by changing the characteristic shifting diagram according to the deviation.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: May 7, 1996
    Assignee: Dr. Ing. h.c.F. Porsche AG
    Inventors: Gerhard Heid, Willi Seidel