Patents by Inventor Dirk Pfeil

Dirk Pfeil 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: 4805101
    Abstract: A method for the damping force adjustment of motor vehicles in dependence on output signals of an acceleration transmitter connected with the vehicle body which are prepared and compared with a predetermined threshold value and which trigger a signal for changing the damping, respectively, spring force when exceeding, respectively, falling below the threshold value. An output signal of an acceleration transmitter rigidly connected with the vehicle body is slidingly determined over a first and a second measuring period, the difference of the two average values are subtracted from one another and are compared with the threshold value. The measuring periods are thereby larger, respectively, smaller than the natural period (reciprocal natural frequency) of the vehicle body.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: February 14, 1989
    Assignee: Bayerische Motoren Werke A.G.
    Inventors: Christian Dietrich, Dieter Hennecke, Simon Losch, Dirk Pfeil