Invention Grant
US08464521B2 Method and arrangement for maintaining a diesel particulate filter in a diesel engine exhaust system
有权
在柴油发动机排气系统中维持柴油机微粒过滤器的方法和装置
- Patent Title: Method and arrangement for maintaining a diesel particulate filter in a diesel engine exhaust system
- Patent Title (中): 在柴油发动机排气系统中维持柴油机微粒过滤器的方法和装置
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Application No.: US12597886Application Date: 2007-05-01
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Publication No.: US08464521B2Publication Date: 2013-06-18
- Inventor: Chun Tai , Kenth I. Svensson
- Applicant: Chun Tai , Kenth I. Svensson
- Applicant Address: US NC Greensboro
- Assignee: Mack Trucks, Inc.
- Current Assignee: Mack Trucks, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: WRB-IP LLP
- International Application: PCT/US2007/067888 WO 20070501
- International Announcement: WO2008/133694 WO 20081106
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/02
Abstract:
A method and apparatus for maintaining a diesel particulate filter (DPF) is provided. A pressure drop across the DPF is measured and an initial estimate of soot loading in the DPF is provided to a recursive filter. Using the recursive filter, the initial estimate of soot loading is updated in view of the measured pressure drop to provide an updated estimate of soot loading in the DPF. Active regeneration of the DPF is triggered when an earliest one of at least one triggering condition occurs, the updated estimate of soot loading reaching a predetermined value being one of the at least one triggering condition.
Public/Granted literature
- US20100089041A1 METHOD AND ARRANGEMENT FOR MAINTAINING A DIESEL PARTICULATE FILTER IN A DIESEL ENGINE EXHAUST SYSTEM Public/Granted day:2010-04-15
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