Invention Grant
- Patent Title: Electrically heated particulate filter
- Patent Title (中): 电加热颗粒过滤器
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Application No.: US12496009Application Date: 2009-07-01
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Publication No.: US08341945B2Publication Date: 2013-01-01
- Inventor: Eugene V. Gonze , Michael J. Paratore, Jr.
- Applicant: Eugene V. Gonze , Michael J. Paratore, Jr.
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: F01N3/00
- IPC: F01N3/00

Abstract:
A control system comprises a particulate matter (PM) filter, an electric heater, a first heating module, and a second heating module. The PM filter includes M zones that filter PM from exhaust gas. The electric heater includes M segments corresponding to the M zones that heat exhaust gas input to selected ones of the M zones when activated. The first heating module activates N of the M segments to heat exhaust gas input to N of the M zones to regenerate the N zones. The second heating module operates in one of a first mode and a second mode to regenerate other ones of the M zones after the N zones are regenerated. The first mode includes adjusting an air-fuel ratio of the exhaust gas. The second mode includes activating other ones of the M segments to heat exhaust gas input to other ones of the M zones.
Public/Granted literature
- US20110004391A1 ELECTRICALLY HEATED PARTICULATE FILTER Public/Granted day:2011-01-06
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