Patents by Inventor Michael J. Svestka

Michael J. Svestka 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).

  • Ethanol compensated fuel density for fuel consumed calculation
    Patent number: 7526374
    Abstract: An engine control module determining an alcohol compensated fuel consumption value includes an alcohol percent module that determines an alcohol percent in fuel and a fuel mass module that determines a mass of the fuel. The engine control module also includes a fuel volume module that calculates a volume of the fuel based on the mass of the fuel, a density of the fuel, and the alcohol percent.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: April 28, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Mark D. Carr, Louis A. Avallone, Michael J. Svestka, Kevin J. Storch
  • ETHANOL COMPENSATED FUEL DENSITY FOR FUEL CONSUMED CALCULATION
    Publication number: 20080223453
    Abstract: An engine control module determining an alcohol compensated fuel consumption value includes an alcohol percent module that determines an alcohol percent in fuel and a fuel mass module that determines a mass of the fuel. The engine control module also includes a fuel volume module that calculates a volume of the fuel based on the mass of the fuel, a density of the fuel, and the alcohol percent.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 18, 2008
    Inventors: Mark D. Carr, Louis A. Avallone, Michael J. Svestka, Kevin J. Storch
  • Apparatus and methods for estimating vehicle fuel composition
    Patent number: 7159623
    Abstract: A method of estimating composition of fuel in the fuel tank of a vehicle. A refuel event is detected. Fuel consumption is monitored during a plurality of stages after the refuel event. A plurality of fuel trim shift values are determined relative to the stages. The fuel trim shift values are used to estimate a fuel composition change. This method eliminates a need for a hardware fuel composition sensor and also provides dynamic filtering of fuel trim values.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: January 9, 2007
    Assignee: General Motors Corporation
    Inventors: Mark D. Carr, Joseph R. Dulzo, Christopher R. Graham, Richard B. Jess, Ian J. MacEwen, Onassis Matthews, Jeffrey A. Sell, Michael J. Svestka, Julian R. Verdejo