Patents by Inventor Kelly E Eber

Kelly E Eber 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: 8562486
    Abstract: A vehicle includes an engine and transmission. A first rotating clutch engages as an oncoming clutch during a predetermined shift maneuver having a total required clutch energy. A second rotating clutch acts as a holding clutch. A third rotating clutch engages as an additional oncoming clutch during the shift maneuver to share clutch energy with the first rotating clutch. The third rotating clutch, when not engaged, has a zero slip speed relative to the input member. A method includes building a shift table for a transmission design, including identifying slip speed ratios, with respect to the input member, for each clutch, and selecting, from the shift table, a direct drive or other gear state in which three of the rotating clutches are simultaneously operating at a zero slip speed ratio with respect to the input member. The third rotating clutch engages during the shift maneuver.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: October 22, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Kelly E Eber