The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2010
Filed:
Dec. 19, 2007
Donald E. Keski-hynnila, Canton, MI (US);
Jeffery S. Hawkins, Farmington Hills, MI (US);
Harald Wedler, Neuhausen, DE;
Reinhard Pfundt, Ansbach, DE;
Frank S. Groer, West Bloomfield, MI (US);
Mark A. Zurawski, Northville, MI (US);
Amr M. Radwan, Canton, MI (US);
Peter Zagone, Huntington, MI (US);
Kevin D. Sisken, Saline, MI (US);
Matthew T. Baird, Canton, MI (US);
Min Sun, Troy, MI (US);
Zornitza P. Pavlova-mackinnon, Farmington Hills, MI (US);
Dennis J. Grace, West Bloomfield, MI (US);
Heather A. Staley, Garden City, MI (US);
Donald E. Keski-Hynnila, Canton, MI (US);
Jeffery S. Hawkins, Farmington Hills, MI (US);
Harald Wedler, Neuhausen, DE;
Reinhard Pfundt, Ansbach, DE;
Frank S. Groer, West Bloomfield, MI (US);
Mark A. Zurawski, Northville, MI (US);
Amr M. Radwan, Canton, MI (US);
Peter Zagone, Huntington, MI (US);
Kevin D. Sisken, Saline, MI (US);
Matthew T. Baird, Canton, MI (US);
Min Sun, Troy, MI (US);
Zornitza P. Pavlova-MacKinnon, Farmington Hills, MI (US);
Dennis J. Grace, West Bloomfield, MI (US);
Heather A. Staley, Garden City, MI (US);
Detroit Diesel Corporation, Detroit, MI (US);
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.