Invention Grant
- Patent Title: Variable power distribution for zoned regeneration of an electrically heated particulate filter
- Patent Title (中): 电加热颗粒过滤器的分区再生的可变功率分布
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Application No.: US12146827Application Date: 2008-06-26
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Publication No.: US08146350B2Publication Date: 2012-04-03
- Inventor: Garima Bhatia , Eugene V. Gonze , Michael J. Paratore, Jr.
- Applicant: Garima Bhatia , Eugene V. Gonze , Michael J. Paratore, Jr.
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: F01N3/027
- IPC: F01N3/027

Abstract:
A system includes a particulate matter (PM) filter with multiple zones, an electric heater and a control module. The electrical heater includes heater segments, which each correspond with a respective one of the zones. The electrical heater is arranged upstream from and is proximate with the PM filter. The control module selectively applies a first energy level to a first one of the zones via a first one of the heater segments to initiate regeneration in the first zone. The control module also selectively applies a second energy level that is less than the first energy level to a second one of the zones via a second one of the heater segments to initiate regeneration in the second zone.
Public/Granted literature
- US20090113883A1 VARIABLE POWER DISTRIBUTION FOR ZONED REGENERATION OF AN ELECTRICALLY HEATED PARTICULATE FILTER Public/Granted day:2009-05-07
Information query
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