Low exhaust temperature electrically heated particulate matter filter system
Patent
·
OSTI ID:1037007
- Pinckney, MI
- Bangalore, IN
A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.
- Research Organization:
- GM Global Technology Operations LLC (Detroit, MI)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC04-03AL67635
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Number(s):
- 8,112,990
- Application Number:
- 12/174,069
- OSTI ID:
- 1037007
- Country of Publication:
- United States
- Language:
- English
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