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:
-
- Pinckney, MI
- Troy, MI
- Issue Date:
- Research Org.:
- GM Global Technology Operations LLC
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1041019
- Patent Number(s):
- 8151557
- Application Number:
- 11/890,766
- Assignee:
- GM Global Technology Operations LLC
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
- 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.
Gonze, Eugene V, & Ament, Frank. Electrically heated DPF start-up strategy. United States.
Gonze, Eugene V, and Ament, Frank. Tue .
"Electrically heated DPF start-up strategy". United States. https://www.osti.gov/servlets/purl/1041019.
@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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 10 00:00:00 EDT 2012},
month = {Tue Apr 10 00:00:00 EDT 2012}
}