Patents by Inventor Marleen F. Thompson

Marleen F. Thompson 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 to operate an electronically controlled internal combustion engine
    Patent number: 8849543
    Abstract: A method and computer readable medium are disclosed to control operation of an internal combustion engine having an electronic control unit (ECU) with memory to burn off HC in an engine exhaust system and limit hydrocarbon and NOx content in the engine exhaust stream while operating the engine in idle mode.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 30, 2014
    Assignee: Detroit Diesel Corporation
    Inventors: Marleen F. Thompson, Tomislav Ivo Golub
  • Method to operate an internal combustion engine
    Patent number: 8769933
    Abstract: A method to operate a vehicle equipped an internal combustion engine and a transmission coupled to drive wheels. The vehicle is equipped with a parking brake and has an electronic control unit with memory and the engine in fluid communication with an exhaust aftertreatment system. The method includes the steps of determining whether the engine is operating in idle mode for a predetermined period of time; determining whether NOx emissions exceed a predetermined level after the predetermined period of time; and limiting the engine speed not to exceed a predetermined engine speed until an operator engages the parking brake and engages an engine ignition switch.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Detroit Diesel Corporation
    Inventors: Marleen F. Thompson, Tomislav Ivo Golub
  • METHOD TO OPERATE AN ELECTRONICALLY CONTROLLED INTERNAL COMBUSTION ENGINE
    Publication number: 20130073176
    Abstract: A method and computer readable medium are disclosed to control operation of an internal combustion engine having an electronic control unit (ECU) with memory to burn off HC in an engine exhaust system and limit hydrocarbon and NOx content in the engine exhaust stream while operating the engine in idle mode.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 21, 2013
    Applicant: Detroit Diesel Corporation
    Inventors: Marleen F. Thompson, Tomislav I. Golub
  • METHOD TO OPERATE AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130073177
    Abstract: A method to operate a vehicle equipped an internal combustion engine and a transmission coupled to drive wheels. The vehicle is equipped with a parking brake and has an electronic control unit with memory and the engine in fluid communication with an exhaust aftertreatment system. The method includes the steps of determining whether the engine is operating in idle mode for a predetermined period of time; determining whether NOx emissions exceed a predetermined level after the predetermined period of time; and limiting the engine speed not to exceed a predetermined engine speed until an operator engages the parking brake and engages an engine ignition switch.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 21, 2013
    Applicant: Detroit Diesel Corporation
    Inventors: Marleen F. Thompson, Tomislav Ivo Golub
  • METHOD TO IGNORE ODOMETER ACCUMULATION WHILE IN PTO MODE
    Publication number: 20100138106
    Abstract: A method to operate a vehicle having a parking brake, an odometer, and a powertrain including an engine with an electronic control unit in communication with a transmission.
    Type: Application
    Filed: December 1, 2008
    Publication date: June 3, 2010
    Inventors: William W. Bowen, Marleen F. Thompson
  • Maintenance alert system for heavy-duty trucks
    Patent number: RE39845
    Abstract: A real-time maintenance alert system and method for use in a heavy-duty truck having an engine controller with memory are provided. The system includes a sensor operative to indicate an engine condition from the group consisting of: oil filter restriction, air filter restriction, fuel filter restriction, oil level, and coolant reserve tank fluid level. Control logic at the engine controller processes the sensor signal to determine a real-time fault condition, when appropriate.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: September 18, 2007
    Assignee: Detroit Diesel Corporation
    Inventors: David Lawrence Hasfjord, Richard M. Avery, Jr., Dennis Michael Letang, James A. Gray, Donald M. McDonald, Marleen F. Thompson, Ian Daniel McKenzie, John Edward Longnecker