Electrically heated particulate filter enhanced ignition strategy
Patent
·
OSTI ID:1079415
An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating applied to at least one of the PF and the grid. A control module estimates a temperature of the grid and controls the engine to produce a desired exhaust product to increase the temperature of the grid.
- Research Organization:
- GM Global Technology Operations LLC
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC04-03AL67635
- Assignee:
- GM Global Technology Operations LLC
- Patent Number(s):
- 8,291,694
- Application Number:
- 11/950,576
- OSTI ID:
- 1079415
- Country of Publication:
- United States
- Language:
- English
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