Patents by Inventor Frank Schwerin

Frank Schwerin 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).

  • Estimation of the temperature of a catalytic converter and corresponding applications
    Patent number: 7841168
    Abstract: The aim of the invention is to estimate a temperature jump (?T) of a catalytic converter of an internal combustion engine in the event of a change in the composition of the exhaust gas. To this end, a quantity of a reactand (SI) stored in the catalytic converter is monitored (2-7), and the heating (?T) of the catalytic converter resulting from the reaction heat released during the reaction of the stored reactand is assumed (13, 14, 16, 17) as the temperature jump (?T).
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: November 30, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Helmut Oswald, Frank Schwerin
  • Estimation of the Temperature of a Catalytic Converter and Corresponding Applications
    Publication number: 20080302084
    Abstract: The aim of the invention is to estimate a temperature jump (?T) of a catalytic converter of an internal combustion engine in the event of a change in the composition of the exhaust gas. To this end, a quantity of a reactand (SI) stored in the catalytic converter is monitored (2-7), and the heating (?T) of the catalytic converter resulting from the reaction heat released during the reaction of the stored reactand is assumed (13, 14, 16, 17) as the temperature jump (?T).
    Type: Application
    Filed: June 15, 2005
    Publication date: December 11, 2008
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Helmut Oswald, Frank Schwerin