Patents by Inventor Thomas Pfeufer

Thomas Pfeufer 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 and apparatus for controlling an internal combustion engine
    Patent number: 5992382
    Abstract: A method and an apparatus control an internal combustion engine associated with a sensor for sensing a measured variable from which an estimated value of a torque loss of the internal combustion engine is derived. A measured value of the measured variable is determined at prescribed time intervals in each case. The measured values are corrected in such a way that a drop in the corrected measured values within a prescribed time interval is limited to a prescribed drop value.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: November 30, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Claus Bruedigam, Klaus Eppinger, Thomas Pfeufer