Patents by Inventor Harald Wedler

Harald Wedler 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 for verifying the functionality of the components of a diesel particulate filter system
    Patent number: 7650781
    Abstract: A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: January 26, 2010
    Assignee: Detroit Diesel Corporation
    Inventors: Donald E. Keski-Hynnila, Jeffery S. Hawkins, Harald Wedler, Reinhard Pfundt, Frank S. Groer, Mark A. Zurawski, Amr M. Radwan, Peter Zagone, Kevin D. Sisken, Matthew T. Baird, Min Sun, Zornitza P. Pavlova-MacKinnon, Dennis J. Grace, Heather A. Staley
  • Method of verifying component functionality on EGR and air systems
    Patent number: 7631552
    Abstract: In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: December 15, 2009
    Assignee: Detroit Diesel Corporation
    Inventors: Donald E. Keski-Hynnila, Jeffery S. Hawkins, Harald Wedler, Reinhard Pfundt, Frank S. Groer, Mark A. Zurawski, Dennis J. Grace, Heather A. Staley, Jimmie L. Priest, Jr., Min Sun, Jason T. Barton, Zhiping Han, Martin Fritz
  • METHOD FOR VERIFYING THE FUNCTIONALITY OF THE COMPONENTS OF A DIESEL PARTICULATE FILTER SYSTEM
    Publication number: 20080155970
    Abstract: A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.
    Type: Application
    Filed: November 13, 2007
    Publication date: July 3, 2008
    Applicant: Detroit Diesel Corporation
    Inventors: Donald E. Keski-Hynnila, Jeffery S. Hawkins, Harald Wedler, Reinhard Pfundt, Frank S. Groer, Mark A. Zurawski, Amr M. Radwan, Peter Zagone, Kevin D. Sisken, Matthew T. Baird, Min Sun, Zornitza P. Pavlova-MacKinnon, Dennis J. Grace, Heather A. Staley
  • METHOD FOR VERIFYING THE FUNCTIONALITY OF THE COMPONENTS OF A DIESEL PARTICULATE FILTER SYSTEM
    Publication number: 20080156084
    Abstract: A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.
    Type: Application
    Filed: December 19, 2007
    Publication date: July 3, 2008
    Applicant: Detroit Diesel Corporation
    Inventors: Donald E. Keski-Hynnila, Jeffery S. Hawkins, Harald Wedler, Reinhard Pfundt, Frank S. Groer, Mark A. Zurawski, Amr M. Radwan, Peter Zagone, Kevin D. Sisken, Matthew T. Baird, Min Sun, Zornitza P. Pavlova-MacKinnon, Dennis J. Grace, Heather A. Staley
  • METHOD OF VERIFYING COMPONENT FUNCTIONALITY ON EGR & AIR SYSTEMS
    Publication number: 20080148827
    Abstract: In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 26, 2008
    Inventors: Donald E. Keski-Hynnila, Jeffery S. Hawkins, Harald Wedler, Reinhard Pfundt, Frank S. Groer, Mark A. Zurawski, Dennis J. Grace, Heather A. Staley, Jimmie L. Priest, Min Sun, Jason T. Barton, Zhiping Han
  • Method and appliance for diagnosis of an exhaust turbocharger for an internal combustion engine
    Patent number: 6848300
    Abstract: In a method for diagnosis of an exhaust turbocharger for an internal combustion engine, at least one value which characterizes the load on the exhaust turbocharger is determined and compared with a reference value, an event signal being generated in the event of the reference value being exceeded. A wear characteristic number which characterizes the alternating load on the exhaust turbocharger is formed by addition of load signals, in each case one change signal being generated whenever the charger speed of the exhaust turbocharger exceeds a maximum.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: February 1, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Wolfram Schmid, Harald Wedler
  • Method and appliance for diagnosis of an exhaust turbocharger for an internal combustion engine
    Publication number: 20030033889
    Abstract: In a method for diagnosis of an exhaust turbocharger for an internal combustion engine, at least one value which characterizes the load on the exhaust turbocharger is determined and compared with a reference value, an event signal being generated in the event of the reference value being exceeded. A wear characteristic number which characterizes the alternating load on the exhaust turbocharger is formed by addition of load signals, in each case one change signal being generated whenever the charger speed of the exhaust turbocharger exceeds a maximum.
    Type: Application
    Filed: August 12, 2002
    Publication date: February 20, 2003
    Inventors: Wolfram Schmid, Harald Wedler