Overlap zoned electrically heated particulate filter
Patent
·
OSTI ID:1019423
- Pinckney, MI
- Brighton, MI
A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.
- Research Organization:
- GM Global Technology Operations LLC
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC04-03AL67635
- Assignee:
- GM Global Technology Operations LLC
- Patent Number(s):
- 7,981,198
- Application Number:
- US Patent Application 11/972,716
- OSTI ID:
- 1019423
- Country of Publication:
- United States
- Language:
- English
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