Overlap zoned electrically heated particulate filter

Patent · Tue Jul 19 00:00:00 EDT 2011

OSTI ID:1019423

Gonze, Eugene V ^[1]; Chapman, Mark R ^[2]

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1. Pinckney, MI
2. 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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