KR980002758A - Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor - Google Patents
Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor Download PDFInfo
- Publication number
- KR980002758A KR980002758A KR1019960020297A KR19960020297A KR980002758A KR 980002758 A KR980002758 A KR 980002758A KR 1019960020297 A KR1019960020297 A KR 1019960020297A KR 19960020297 A KR19960020297 A KR 19960020297A KR 980002758 A KR980002758 A KR 980002758A
- Authority
- KR
- South Korea
- Prior art keywords
- leak
- gas
- fuel
- negative pressure
- control valve
- Prior art date
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Abstract
[목적][purpose]
연료 탱크에 걸리는 부압을 측정함으로써 연료 탱크와 서지 컨트롤 밸브간에 증기 가스 관로의 파손으로 인한 가솔린 증기가 누출되는 것을 자동으로 감지하여 이를 운전자에게 경고할 수 있는 장치를 제공한다.By measuring the negative pressure across the fuel tank, it provides a device to automatically detect and alert the operator of gasoline vapor leaks caused by breakage of the steam gas pipeline between the fuel tank and the surge control valve.
[구성][Configuration]
엔진의 아이들 상태에서 제어를 시작하도록 하는 초기 단계와, 서지 커트롤 솔레노이드 밸브와 캐니스터 제어 밸브를 닫는 폐쇄 단계와, 연료 탱크에 압력을 입력하는 입력 단계와, 입력 단계에서 측정한 부압의 기울기를 측정한 측정 단계와, 상기 측정 단계에서 측정된 부압을 미리 메모리 되어 있는 설정치와 비교하는 누출 조건 단계와, 가솔린 중기 가스의 누출임을 판단하는 누출 판단 단계와, 캐니스터 제어 밸브를 평소대로 개방하는 개방 단계와, 운전자에게 연료 증기 가스의 누출을 경고하기 위해 운전석의 경고등을 점등하는 경고 단계의 순으로 제어된다.Measures the initial stage of starting control at engine idle, the closing stage of closing the surge control solenoid valve and the canister control valve, the input stage of inputting pressure into the fuel tank, and the slope of the negative pressure measured at the input stage. A measurement step, a leak condition step of comparing the negative pressure measured in the measurement step with a preset memory value, a leak determination step of determining that the gasoline heavy gas is leaking, an opening step of opening the canister control valve as usual; In order to warn the driver of the leakage of fuel vapor gas, it is controlled in the order of warning steps to light the driver's warning light.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 증발 가스 진단 계통도.1 is an evaporative gas diagnostic system diagram according to the present invention.
제2도는 본 발명에 따른 가스 누출 진단의 제어 동작 흐름도.2 is a flow chart of the control operation of the gas leak diagnosis according to the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020297A KR980002758A (en) | 1996-06-07 | 1996-06-07 | Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960020297A KR980002758A (en) | 1996-06-07 | 1996-06-07 | Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor |
Publications (1)
Publication Number | Publication Date |
---|---|
KR980002758A true KR980002758A (en) | 1998-03-30 |
Family
ID=66284199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960020297A KR980002758A (en) | 1996-06-07 | 1996-06-07 | Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR980002758A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100471204B1 (en) * | 2001-10-08 | 2005-03-07 | 현대자동차주식회사 | Evaporative gas leakage monitoring method |
KR100472226B1 (en) * | 2001-11-19 | 2005-03-08 | 기아자동차주식회사 | apparatus control fuel leak of fuel-tank vihicles |
KR100664372B1 (en) * | 2006-02-09 | 2007-01-02 | 씨멘스 오토모티브 주식회사 | Method for diagonsing partial sticek of canister fuzzy valve |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05125997A (en) * | 1991-09-13 | 1993-05-21 | Nippondenso Co Ltd | Abnormality detection device for fuel evaporation prevention device |
JPH05180103A (en) * | 1991-12-28 | 1993-07-20 | Suzuki Motor Corp | Evaporated fuel control apparatus for vehicle |
JPH05180101A (en) * | 1992-01-06 | 1993-07-20 | Toyota Motor Corp | Fault diagnosis device for evapo-purge system |
KR950008953A (en) * | 1993-09-28 | 1995-04-19 | 요시후미 쓰지 | Fault diagnosis device of evaporative fuel evaporation prevention device of internal combustion engine and protection device of evaporative fuel supply system |
KR970035642A (en) * | 1995-12-29 | 1997-07-22 | 전성원 | Evaporative gas leak monitoring system and its control method |
-
1996
- 1996-06-07 KR KR1019960020297A patent/KR980002758A/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05125997A (en) * | 1991-09-13 | 1993-05-21 | Nippondenso Co Ltd | Abnormality detection device for fuel evaporation prevention device |
JPH05180103A (en) * | 1991-12-28 | 1993-07-20 | Suzuki Motor Corp | Evaporated fuel control apparatus for vehicle |
JPH05180101A (en) * | 1992-01-06 | 1993-07-20 | Toyota Motor Corp | Fault diagnosis device for evapo-purge system |
KR950008953A (en) * | 1993-09-28 | 1995-04-19 | 요시후미 쓰지 | Fault diagnosis device of evaporative fuel evaporation prevention device of internal combustion engine and protection device of evaporative fuel supply system |
KR970035642A (en) * | 1995-12-29 | 1997-07-22 | 전성원 | Evaporative gas leak monitoring system and its control method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100471204B1 (en) * | 2001-10-08 | 2005-03-07 | 현대자동차주식회사 | Evaporative gas leakage monitoring method |
KR100472226B1 (en) * | 2001-11-19 | 2005-03-08 | 기아자동차주식회사 | apparatus control fuel leak of fuel-tank vihicles |
KR100664372B1 (en) * | 2006-02-09 | 2007-01-02 | 씨멘스 오토모티브 주식회사 | Method for diagonsing partial sticek of canister fuzzy valve |
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Legal Events
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |