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특허 상세정보

Control system for diesel particulate trap regeneration system

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-003/02   
미국특허분류(USC) 60/274 ; 60/280 ; 60/286
출원번호 US-0477019 (1990-02-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 43  인용 특허 : 0
초록

A control system for regenerating a particulate trap in the exhaust system of a diesel engine includes control logic which controls the air/fuel ratio of the engine by operating a backpressure valve in the engine exhaust system to provide a proper amount of excess oxygen to permit efficient combustion of the particulate content of the trap, but to avoid rapid and damaging combustion rates. Actual engine air/fuel ratio is compared to a commanded air/fuel ratio, and the position of the backpressure valve is adjusted accordingly. The commanded air/fuel rati...

대표
청구항

Method of regenerating an exhaust gas particulate trap in an exhaust system for an internal combustion engine, comprising the steps of measuring the air/fuel ratio of said internal combustion engine, generating a signal representing a commanded value of the air/fuel signal corresponding to an air/fuel ratio with sufficient excess air to burn the particles stored in the trap, generating an error signal representing the difference between the measured air/fuel ratio and the commanded value of the air/fuel ratio, and controlling the air/fuel ratio of said e...

이 특허를 인용한 특허 피인용횟수: 43

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