Patents by Inventor William E. Hoban, JR.

William E. Hoban, 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).

  • Patent number: 9541022
    Abstract: An engine control module (ECM) having a plurality of driver banks is provided. Each of the driver banks is configured to drive a plurality of combustion control elements. The driver banks include two low side driver circuits and a high side driver circuit, the high side driver circuit in each of the plurality of driver banks being shared pairwise by two combustion control elements. Each one of said at least two low side driver circuits is respectively associated with the two combustion control elements. The ECM includes a field programmable gate array (FPGA) coupled to the plurality of driver banks and configured to provide firing signals to at least twelve high side driver circuits to simultaneously drive at least twelve combustion control elements respectively coupled to the at least twelve high side driver circuits.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: January 10, 2017
    Assignee: Caterpillar Inc.
    Inventors: William E. Hoban, Jr., Ioan Paduret, James D. Siegle
  • Patent number: 9429126
    Abstract: A method of detecting a resistive short-to-ground fault in an injector driver circuit is disclosed. The method includes determining if the injector driver circuit is in an inactive state and providing a pull-up resistor configured for connection to a low-side output of at least one fuel injector. The method further includes selectively enabling a pull-up voltage across the pull-up resistor only when the injector driver circuit is in the inactive state and determining an intersection voltage at a point between the pull-up resistor and the low-side output. The method further includes comparing the intersection voltage with a predetermined reference voltage. The method further includes disabling the injector driver circuit if the short-to-ground fault is detected at the low-side of the fuel injectors.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: August 30, 2016
    Assignee: Caterpillar Inc.
    Inventors: William E. Hoban, Jr., Sreekumar Regu Girijakumari
  • Publication number: 20150369145
    Abstract: A method of operation of a current control driver module for an engine system is provided. The method includes selecting a mode of operation of the current control driver module. The method also includes performing any one of a peak current control and an average current control by the current control driver module based on the selected mode of operation of the current control driver module.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Applicant: Caterpillar Inc.
    Inventors: William E. Hoban, JR., Matthew G. Pennell, Amber J. Hoffman, Saneeb Umeer
  • Publication number: 20150354522
    Abstract: A method of detecting a resistive short-to-ground fault in an injector driver circuit is disclosed. The method includes determining if the injector driver circuit is in an inactive state and providing a pull-up resistor configured for connection to a low-side output of at least one fuel injector. The method further includes selectively enabling a pull-up voltage across the pull-up resistor only when the injector driver circuit is in the inactive state and determining an intersection voltage at a point between the pull-up resistor and the low-side output. The method further includes comparing the intersection voltage with a predetermined reference voltage. The method further includes disabling the injector driver circuit if the short-to-ground fault is detected at the low-side of the fuel injectors.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Inventors: William E. Hoban, JR., Sreekumar Regu Girijakumari
  • Publication number: 20150308399
    Abstract: An engine control module (ECM) having a plurality of driver banks is provided. Each of the driver banks is configured to drive a plurality of combustion control elements. The driver banks include two low side driver circuits and a high side driver circuit, the high side driver circuit in each of the plurality of driver banks being shared pairwise by two combustion control elements. Each one of said at least two low side driver circuits is respectively associated with the two combustion control elements. The ECM includes a field programmable gate array (FPGA) coupled to the plurality of driver banks and configured to provide firing signals to at least twelve high side driver circuits to simultaneously drive at least twelve combustion control elements respectively coupled to the at least twelve high side driver circuits.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 29, 2015
    Applicant: Caterpillar Inc.
    Inventors: William E. Hoban, JR., Ioan Paduret, James D. Siegle