Patents by Inventor Jonathan R. Hillman

Jonathan R. Hillman 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 determining the fill time of a transmission clutch
    Patent number: 6216074
    Abstract: A method for controlling the fill time of an oncoming transmission clutch of a vehicle within a predetermined range of speed conditions is disclosed, the method including the steps of: (a) sensing an engine speed within the predetermined range; (b) reading an incremental pulse time value corresponding to the speed sensed in step (a); and (c) determining an adjusted pulse time value using the incremental pulse value read in step (b) and a predetermined nominal pulse time value.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: April 10, 2001
    Assignee: Caterpillar Inc.
    Inventors: Jonathan R. Hillman, Danial P. Simon