Patent · US Active

Method for verifying the functionality of the components of a diesel particulate filter system

US7650781B2 · kind B2 · utility

4Cited by

17References

21Claims

0Family size

Assignee

DETROIT DIESEL CORPORATION · US

Inventors

Donald E. Keski-Hynnila · Canton, US
Jeffery S. Hawkins · Farmington Hills, US
Harald Wedler · Bad Liebenzell, DE
Reinhard Pfundt · Ansbach, DE
Frank S. Groer · Beverly Hills, US
Mark A. Zurawski · Northville, US
Amr Radwan · Canton, US
Peter Zagone · Boulder, US
Kevin Sisken · Saline, US
Matthew T. Baird · Canton, US
Min Sun · Troy, US
Zornitza Pavlinova Pavlova-MacKinnon · Farmington Hills, US
Dennis J. Grace · Beverly Hills, US
Heather A. Staley · Garden City, US

Key dates

Filing date	Dec 19, 2007
Grant date	Jan 26, 2010
Priority date	—
Expiry date	Feb 4, 2028

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.