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Title: Electrically heated particulate matter filter soot control system

Patent ·
OSTI ID:1243054

A regeneration system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas and a downstream end. A control module determines a current soot loading level of the PM filter and compares the current soot loading level to a predetermined soot loading level. The control module permits regeneration of the PM filter when the current soot loading level is less than the predetermined soot loading level.

Research Organization:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC04-03AL67635
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
Patent Number(s):
9,284,870
Application Number:
12/209,286
OSTI ID:
1243054
Resource Relation:
Patent File Date: 2008 Sep 12
Country of Publication:
United States
Language:
English

References (7)

Exhaust gas cleaning device patent March 1985
Carbon particulates cleaning device patent May 1985
Particulate purging apparatus for diesel engine exhaust patent December 1990
Regeneration of diesel engine particulate filter only above low fuel levels patent December 2002
Method for regenerating particulate filter patent April 2006
Particulate trap regeneration temperature control system patent March 2010
Particulate loading monitoring system patent March 2010