Patents by Inventor Thomas H Pruett

Thomas H Pruett 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).

  • Turbocharged engine purge flow monitor diagnostic
    Patent number: 9062637
    Abstract: A method is provided for testing the evaporative emission system of a vehicle having a forced induction engine. The method includes controlling a vacuum bypass valve and a purge flow control valve to create the necessary conditions to perform the testing of the evaporative emission system. The method determines whether an evaporative system integrity monitor switch is open after a timer is initiated and the vacuum bypass valve is opened.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 23, 2015
    Assignee: FCA US LLC
    Inventors: Roger C Sager, Joshua P Macchiavello, Paul J Gregor, Christopher G Hadre, Thomas H Pruett
  • TURBOCHARGED ENGINE PURGE FLOW MONITOR DIAGNOSTIC
    Publication number: 20140365071
    Abstract: A method is provided for testing the evaporative emission system of a vehicle having a forced induction engine. The method includes controlling a vacuum bypass valve and a purge flow control valve to create the necessary conditions to perform the testing of the evaporative emission system. The method determines whether an evaporative system integrity monitor switch is open after a timer is initiated and the vacuum bypass valve is opened.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventors: Roger C Sager, Joshua P Macchiavello, Paul J Gregor, Christopher G Hadre, Thomas H Pruett
  • Turbo-charged engine purge flow monitor diagnostic
    Patent number: 8843265
    Abstract: A method for testing the evaporative emission system of a vehicle. The method provides for testing the evaporative emission system of a vehicle having a forced induction engine. The method includes controlling a vacuum bypass valve and a purge flow control valve to create the necessary conditions to perform the testing of the evaporative emission system.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: September 23, 2014
    Assignee: Chrysler Group LLC
    Inventors: Roger C. Sager, Joshua P. Macchiavello, Paul J. Gregor, Christopher G. Hadre, Thomas H. Pruett
  • TURBO-CHARGED ENGINE PURGE FLOW MONITOR DIAGNOSTIC
    Publication number: 20130282230
    Abstract: A method for testing the evaporative emission system of a vehicle. The method provides for testing the evaporative emission system of a vehicle having a forced induction engine. The method includes controlling a vacuum bypass valve and a purge flow control valve to create the necessary conditions to perform the testing of the evaporative emission system.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 24, 2013
    Applicant: CHRYSLER GROUP LLC
    Inventors: Roger C. Sager, Joshua P. Macchiavello, Paul J. Gregor, Christopher G. Hadre, Thomas H. Pruett
  • Flash loader for vehicle electronic control units
    Patent number: 6925365
    Abstract: A flashloader having a standard module for receiving programming instructions and an application program via a communications port of a vehicle controller, where the flashloader further provides an MCU module for writing the received application program to reprogrammable memory within the vehicle controller, and an ECU module for determining whether a valid application program has been stored in the reprogrammable memory. Upon detection of a valid application program a microprocessor of the vehicle controller executes instructions from the reprogrammable memory and upon detection of an invalid application program the microprocessor continues to execute instructions from the bootloader.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: August 2, 2005
    Assignee: DaimlerChrysler Corporation
    Inventors: William V Luitje, Thomas H Pruett, Andrij A Birko
  • Flash loader for vehicle electronic control units
    Publication number: 20040078119
    Abstract: A flashloader having a standard module for receiving programming instructions and an application program via a communications port of a vehicle controller, where the flashloader further provides an MCU module for writing the received application program to reprogrammable memory within the vehicle controller, and an ECU module for determining whether a valid application program has been stored in the reprogrammable memory. Upon detection of a valid application program a microprocessor of the vehicle controller executes instructions from the reprogrammable memory and upon detection of an invalid application program the microprocessor continues to execute instructions from the bootloader.
    Type: Application
    Filed: August 5, 2003
    Publication date: April 22, 2004
    Inventors: William V. Luitje, Thomas H. Pruett, Andrij A. Birko