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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

System for particulate matter sensor signal processing

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G06F-019/00    F01N-003/20    F02D-041/14    G01N-007/00   
미국특허분류(USC) 701/109; 060/276; 060/277; 060/297; 073/028.02
출원번호 US-0842805 (2010-07-23)
등록번호 US-8165786 (2012-04-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Seager, Tufte & Wickhem LLC
인용정보 피인용 횟수 : 0  인용 특허 : 201
초록
▼

A system having a particulate matter sensor in an exhaust stream of an engine upstream from a particulate filter and another such sensor downstream from the filter. There may also be an exhaust gas recirculation (EGR) control on the engine. The amount of particulate matter in or loading of the filter may be determined by the upstream filter. The working condition of the filter may be determined by the downstream sensor. The filter may have a heater and control for providing operational and particulate matter burn-off temperatures to the filter. A process...

대표
청구항
▼

1. A processing system for particulate matter sensing comprising: a particulate matter (PM) sensor for being positioned in an exhaust stream;a processor connected to the PM sensor; andan engine crank angle input connected to the processor; andwherein the processor comprises a program for providing analyzed profiles of individual engine cylinder behavior. 2. The system of claim 1, wherein the program comprises a combination of time-domain and/or frequency domain analysis algorithms. 3. The system of claim 2, wherein the profiles of individual cylinder beh...

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