Invention Grant
US08146350B2 Variable power distribution for zoned regeneration of an electrically heated particulate filter 有权
电加热颗粒过滤器的分区再生的可变功率分布

Variable power distribution for zoned regeneration of an electrically heated particulate filter
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.
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