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Title: Electrically heated DPF start-up strategy

Abstract

An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature.

Inventors:
 [1];  [2]
+ Show Inventor Affiliations
  1. Pinckney, MI
  2. Troy, MI
Publication Date:
Research Org.:
GM Global Technology Operations LLC
Sponsoring Org.:
USDOE
OSTI Identifier:
1041019
Patent Number(s):
8,151,557
Application Number:
11/890,766
Assignee:
GM Global Technology Operations LLC
DOE Contract Number:  
FC04-03AL67635
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Gonze, Eugene V, and Ament, Frank. Electrically heated DPF start-up strategy. United States: N. p., 2012. Web.
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Gonze, Eugene V, & Ament, Frank. Electrically heated DPF start-up strategy. United States.
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Gonze, Eugene V, and Ament, Frank. Tue . "Electrically heated DPF start-up strategy". United States. https://www.osti.gov/servlets/purl/1041019.
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@article{osti_1041019,
title = {Electrically heated DPF start-up strategy},
author = {Gonze, Eugene V and Ament, Frank},
abstractNote = {An exhaust system that processes exhaust generated by an engine has a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates in the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates. Heat generated by combustion of particulates in the heater induces combustion of particulates within the DPF. A control module selectively enables current flow to the electrical heater for an initial period of a DPF regeneration cycle, and limits exhaust flow while the electrical heater is heating to a predetermined soot combustion temperature.},
doi = {},
url = {https://www.osti.gov/biblio/1041019}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {4}
}
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