Patents by Inventor John E. Preble, JR.

John E. Preble, JR. 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).

  • Engine control system and method for initiating a diesel particulate filter regeneration
    Patent number: 9010094
    Abstract: An engine command override may occur when a diesel particulate filter (DPF) requires regeneration. The need for regeneration may be indicated by regeneration level. The engine may be operated in a normal mode when the DPF regeneration level is below a regeneration level threshold, wherein the engine command is based on the throttle input. Additionally, the engine may be operated in an override mode when the DPF regeneration level is above a regeneration level threshold and the engine is operating in the idle state, wherein the engine command is based on a predetermined throttle regeneration setting.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: April 21, 2015
    Assignee: Caterpillar Inc.
    Inventors: Kevin A. O'Neil, Arick M. Bakken, Andrew P. Bachle, John E. Preble, Jr.
  • ENGINE CONTROL SYSTEM AND METHOD FOR INITIATING A DIESEL PARTICULATE FILTER REGENERATION
    Publication number: 20130227933
    Abstract: An engine command override may occur when a diesel particulate filter (DPF) requires regeneration. The need for regeneration may be indicated by regeneration level. The engine may be operated in a normal mode when the DPF regeneration level is below a regeneration level threshold, wherein the engine command is based on the throttle input. Additionally, the engine may be operated in an override mode when the DPF regeneration level is above a regeneration level threshold and the engine is operating in the idle state, wherein the engine command is based on a predetermined throttle regeneration setting.
    Type: Application
    Filed: January 29, 2013
    Publication date: September 5, 2013
    Applicant: CATERPILLAR INC.
    Inventors: Kevin A. O'Neil, Arick M. Bakken, Andrew P. Bachle, John E. Preble, JR.