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Title: High exhaust temperature, zoned, electrically-heated particulate matter filter

Abstract

A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.

Inventors:
; ;
Publication Date:
Research Org.:
Albuquerque Operations Office, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1221378
Patent Number(s):
9,140,159
Application Number:
11/950,545
Assignee:
Gonze, Eugene V. (Pinckney, MI) ALO
DOE Contract Number:  
FC04-03AL67635
Resource Type:
Patent
Resource Relation:
Patent File Date: 2007 Dec 05
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Gonze, Eugene V., Paratore, Jr., Michael J., and Bhatia, Garima. High exhaust temperature, zoned, electrically-heated particulate matter filter. United States: N. p., 2015. Web.
Gonze, Eugene V., Paratore, Jr., Michael J., & Bhatia, Garima. High exhaust temperature, zoned, electrically-heated particulate matter filter. United States.
Gonze, Eugene V., Paratore, Jr., Michael J., and Bhatia, Garima. Tue . "High exhaust temperature, zoned, electrically-heated particulate matter filter". United States. doi:. https://www.osti.gov/servlets/purl/1221378.
@article{osti_1221378,
title = {High exhaust temperature, zoned, electrically-heated particulate matter filter},
author = {Gonze, Eugene V. and Paratore, Jr., Michael J. and Bhatia, Garima},
abstractNote = {A system includes a particulate matter (PM) filter, an electric heater, and a control circuit. The electric heater includes multiple zones, which each correspond to longitudinal zones along a length of the PM filter. A first zone includes multiple discontinuous sub-zones. The control circuit determines whether regeneration is needed based on an estimated level of loading of the PM filter and an exhaust flow rate. In response to a determination that regeneration is needed, the control circuit: controls an operating parameter of an engine to increase an exhaust temperature to a first temperature during a first period; after the first period, activates the first zone; deactivates the first zone in response to a minimum filter face temperature being reached; subsequent to deactivating the first zone, activates a second zone; and deactivates the second zone in response to the minimum filter face temperature being reached.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 2015},
month = {Tue Sep 22 00:00:00 EDT 2015}
}

Patent:

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