Patents by Inventor Julia C. Grow

Julia C. Grow 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).

  • Algorithm to diagnose leaks or blockages downstream of the secondary air injection reaction (SAIR) pressure sensor
    Patent number: 8136347
    Abstract: A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: March 20, 2012
    Inventors: Ian J. Mac Ewen, Martin L. Hall, Lawrence O Murray, Julia C. Grow, Richard A. Van Camp, David Edward Prout, Igor Anilovich
  • ALGORITHM TO DIAGNOSE LEAKS OR BLOCKAGES DOWNSTREAM OF THE SECONDARY AIR INJECTION REACTION (SAIR) PRESSURE SENSOR
    Publication number: 20090198457
    Abstract: A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length.
    Type: Application
    Filed: September 5, 2008
    Publication date: August 6, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Ian J. Mac Ewen, Martin L. Hall, Lawrence O. Murray, Julia C. Grow, Richard A. Van Camp, David Edward Prout, Igor Anilovich