Patents by Inventor William Joseph Gourlay

William Joseph Gourlay 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 and apparatus to control motor cooling in an electro-mechanical transmission
    Patent number: 8500598
    Abstract: A powertrain includes an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and first and second electric machines adapted to selectively transmit mechanical power to an output member. An apparatus for controlling the powertrain includes the first and second electric machines, a first electric machine cooling circuit directing a cooling hydraulic flow to the first electric machine, a second electric machine cooling circuit directing a cooling hydraulic flow to the second electric machine, a hydraulic control system receiving a hydraulic flow and selectively channeling the hydraulic flow to the first and second electric machine cooling circuits, and an active electric machine cooling control system monitoring temperatures of the first and second electric machines, monitoring operation of the hydraulic control system, and selectively controlling the hydraulic control system.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: August 6, 2013
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Aniket Kothari, Jy-Jen F. Sah, Ali K. Naqvi, William Joseph Gourlay
  • METHOD AND APPARATUS TO CONTROL MOTOR COOLING IN AN ELECTRO-MECHANICAL TRANSMISSION
    Publication number: 20120191283
    Abstract: A powertrain includes an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and first and second electric machines adapted to selectively transmit mechanical power to an output member. An apparatus for controlling the powertrain includes the first and second electric machines, a first electric machine cooling circuit directing a cooling hydraulic flow to the first electric machine, a second electric machine cooling circuit directing a cooling hydraulic flow to the second electric machine, a hydraulic control system receiving a hydraulic flow and selectively channeling the hydraulic flow to the first and second electric machine cooling circuits, and an active electric machine cooling control system monitoring temperatures of the first and second electric machines, monitoring operation of the hydraulic control system, and selectively controlling the hydraulic control system.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 26, 2012
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Bayerische Motoren Werke Aktiengesellschaft, Chrysler LLC, Daimler AG
    Inventors: Aniket Kothari, Jy-Jen F. Sah, Ali K. Naqvi, William Joseph Gourlay
  • Method and apparatus to control motor cooling in an electro-mechanical transmission
    Patent number: 8167773
    Abstract: A method for controlling a powertrain including an transmission coupled to an engine and an electric machine and a hydraulic control system providing hydraulic flow to a cooling circuit of the electric machine, wherein the transmission is adapted to selectively transmit mechanical power to an output member, includes monitoring a temperature of the electric machine, determining a cooling flow requirement for the cooling circuit based upon the temperature of the electric machine, comparing the cooling flow requirement to a threshold cooling flow, and requesting active electric machine cooling of the electric machine based upon the comparing.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: May 1, 2012
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Aniket Kothari, Jy-Jen F. Sah, Ali K Naqvi, William Joseph Gourlay
  • METHOD AND APPARATUS TO CONTROL MOTOR COOLING IN AN ELECTRO-MECHANICAL TRANSMISSION
    Publication number: 20090107755
    Abstract: A method for controlling a powertrain including an transmission coupled to an engine and an electric machine and a hydraulic control system providing hydraulic flow to a cooling circuit of the electric machine, wherein the transmission is adapted to selectively transmit mechanical power to an output membe, includes monitoring a temperature of the electric machine, determining a cooling flow requirement for the cooling circuit based upon the temperature of the electric machine, comparing the cooling flow requirement to a threshold cooling flow, and requesting active electric machine cooling of the electric machine based upon the comparing.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 30, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: Aniket Kothari, Jy-Jen F. Sah, Ali K. Naqvi, William Joseph Gourlay