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 PDF

Info

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
Application number
KR1019960020297A
Other languages
Korean (ko)
Inventor
유준열
Original Assignee
김영귀
기아자동차 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김영귀, 기아자동차 주식회사 filed Critical 김영귀
Priority to KR1019960020297A priority Critical patent/KR980002758A/en
Publication of KR980002758A publication Critical patent/KR980002758A/en

Links

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

연료 증발 배출 가스 억제 장치의 증발 가스 누출 진단 장치Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor

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)

연료 증발 배출 가스 억제 장치의 증발 가스 누출 진단 장치에 있어서, 엔진의 아이들 상태에서 제어를 시작하도록 하는 초기 단계와, 퍼지 컨트롤 솔레노이드 밸브와 캐니스터 제어 밸브를 닫는 폐쇄 단계와, 연료 탱크에 장착된 탱크 압력 센서로부터 연료 탱크의 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, 상기 누출 조건을 만족하는 경우 가솔린 증기 가스의 누출임을 판단하는 누출 판단 단계와, 상기 누출 여부가 판단되었으므로 캐니스터 제어 밸브를 평소대로 개방하는 개방 단계와, 운전자에게 연료 증기 가스의 누출을 경고하기 위하여 경고등을 점등하는 경고 단계의 순으로 제어됨을 특징으로 하는 연료 증발 배출 가스 억제 장치의 증발 가스 누출 진단 장치.An apparatus for diagnosing an evaporation gas leak of a fuel evaporative emission gas suppression apparatus, comprising: an initial step of starting control in an idle state of an engine, a closing step of closing a purge control solenoid valve and a canister control valve, and a tank pressure mounted on a fuel tank An input step of inputting the pressure of the fuel tank from the sensor, a measurement step of measuring the slope of the negative pressure measured at the input step, a leak condition step of comparing the negative pressure measured at the measurement step with a preset memory value, and If the leak condition is satisfied, a leak determination step for determining that the gasoline vapor gas is a leak, an open step for opening the canister control valve as usual since the leak was determined, and a warning light to warn the operator of the fuel vapor gas leak. It is controlled in the order of warning steps that light up. Boil-off gas leakage diagnosis apparatus of a fuel evaporation gas emission suppressing device. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960020297A 1996-06-07 1996-06-07 Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor KR980002758A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JP3614433B2 (en) Canister purge system with positive pressure diagnostic device
US9714590B2 (en) Crankcase integrity breach detection
US6073487A (en) Evaporative system leak detection for an evaporative emission control system
EP0545122B1 (en) Positive pressure canister purge system integrity confirmation
US6363921B1 (en) Vacuum leak verification system and method
US5327873A (en) Malfunction sensing apparatus for a fuel vapor control system
US6840233B2 (en) Method and apparatus for monitoring a controllable valve
US6220229B1 (en) Apparatus for detecting evaporative emission control system leak
KR19980703636A (en) Detection device for detecting leaks in the fuel supply system
US5560243A (en) Device for venting a fuel tank and a process for checking the functional capability of the device
US6536261B1 (en) Vacuum leak verification system and method
JPH0835452A (en) Diagnostic method for evaporation purge system
US6845652B2 (en) Method and device for diagnosing tank leaks using a reference measuring method
JP2002004959A (en) Method and device for inspecting function of vessel, in particular, automobile tank ventilation device
CN103376209A (en) Method for determining crankcase breach and oil level
JP2005002965A (en) Leak diagnostic device of evaporated fuel treating device
US5666925A (en) Method and arrangement for diagnosing a tank-venting system
JP2001012319A (en) Leak diagnostic device for evaporative fuel processing device
US8365706B2 (en) Method and device for testing the tightness of a fuel tank of an internal combustion engine
US5327776A (en) Leakage detecting device for an airtight vessel
US5651349A (en) Purge system flow monitor and method
US11073112B2 (en) Evaporative emission control system for a vehicle
JPH09138176A (en) Detecting method of refueling process in container
KR20220049511A (en) Method and device for diagnosing leakage in crankcase ventilation line of crankcase ventilation device for internal combustion engine
KR980002758A (en) Evaporative Gas Leak Diagnosis Device for Fuel Evaporative Exhaust Gas Suppressor

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application