DE69500290D1 - Brennstoffdampfleckerkennungssystem - Google Patents

Brennstoffdampfleckerkennungssystem

Info

Publication number
DE69500290D1
DE69500290D1 DE69500290T DE69500290T DE69500290D1 DE 69500290 D1 DE69500290 D1 DE 69500290D1 DE 69500290 T DE69500290 T DE 69500290T DE 69500290 T DE69500290 T DE 69500290T DE 69500290 D1 DE69500290 D1 DE 69500290D1
Authority
DE
Germany
Prior art keywords
detection system
leak detection
fuel vapor
vapor leak
fuel
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69500290T
Other languages
English (en)
Other versions
DE69500290T2 (de
Inventor
John E Cook
Paul D Perry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Canada Ltd
Original Assignee
Siemens Electric Ltd
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 Siemens Electric Ltd filed Critical Siemens Electric Ltd
Application granted granted Critical
Publication of DE69500290D1 publication Critical patent/DE69500290D1/de
Publication of DE69500290T2 publication Critical patent/DE69500290T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0809—Judging failure of purge control system
    • F02M25/0818—Judging failure of purge control system having means for pressurising the evaporative emission space

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Examining Or Testing Airtightness (AREA)
DE69500290T 1994-03-04 1995-02-15 Brennstoffdampfleckerkennungssystem Expired - Fee Related DE69500290T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/205,983 US5390645A (en) 1994-03-04 1994-03-04 Fuel vapor leak detection system

Publications (2)

Publication Number Publication Date
DE69500290D1 true DE69500290D1 (de) 1997-06-19
DE69500290T2 DE69500290T2 (de) 1997-10-30

Family

ID=22764491

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69500290T Expired - Fee Related DE69500290T2 (de) 1994-03-04 1995-02-15 Brennstoffdampfleckerkennungssystem

Country Status (4)

Country Link
US (1) US5390645A (de)
EP (1) EP0670423B1 (de)
JP (1) JP3542659B2 (de)
DE (1) DE69500290T2 (de)

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JPH084569A (ja) * 1994-06-22 1996-01-09 Toyota Motor Corp 内燃機関の蒸発燃料制御装置
US5763764A (en) * 1995-01-06 1998-06-09 Snap-On Technologies, Inc. Evaporative emission tester
US5483942A (en) * 1995-02-24 1996-01-16 Siemens Electric Limited Fuel vapor leak detection system
JP3317121B2 (ja) * 1996-01-25 2002-08-26 株式会社日立製作所 エバポシステムおよびその診断方法
US5715799A (en) * 1996-03-05 1998-02-10 Chrysler Corporation Method of leak detection during low engine vacuum for an evaporative emission control system
DE19617957A1 (de) * 1996-05-04 1997-11-13 Bosch Gmbh Robert Tankentlüftungseinrichtung
US5685268A (en) * 1996-05-20 1997-11-11 Siemens Automotive Corporation Fuel leakage detector system
DE19625702A1 (de) * 1996-06-27 1998-01-02 Bosch Gmbh Robert Verfahren und Vorrichtung zur Dichtheitsprüfung eines Behältnisses
US5817925A (en) * 1997-03-26 1998-10-06 Siemens Electric Limited Evaporative emission leak detection system
JPH1130158A (ja) * 1997-05-12 1999-02-02 Denso Corp 蒸発燃料蒸散防止装置
DE19735549B4 (de) * 1997-08-16 2008-02-14 Robert Bosch Gmbh Vorrichtung zur Diagnose einer Tankentlüftungsanlage eines Fahrzeugs
US6283097B1 (en) 1997-08-25 2001-09-04 John E. Cook Automotive evaporative emission leak detection system
DE69802954D1 (de) 1997-10-02 2002-01-24 Siemens Canada Ltd Verfahren zur temperatur-korrektur und untersystem für eine anordnung zur verdampfungsleck-detektion von fahrzeugen
JP3512998B2 (ja) * 1997-12-16 2004-03-31 株式会社日立ユニシアオートモティブ 過給機付内燃機関の蒸発燃料処理装置
US6192743B1 (en) * 1998-02-25 2001-02-27 Siemens Canada Limited Self-contained leak detection module having enclosure-mounted toggle levers for pump and valve
US6343505B1 (en) 1998-03-27 2002-02-05 Siemens Canada Limited Automotive evaporative leak detection system
US6119663A (en) * 1998-03-31 2000-09-19 Unisia Jecs Corporation Method and apparatus for diagnosing leakage of fuel vapor treatment unit
DE19831188C2 (de) * 1998-07-11 2003-05-08 Freudenberg Carl Kg Tankentlüftungseinrichtung für Kraftfahrzeuge
GB9904030D0 (en) * 1999-02-22 1999-04-14 Carter Rodney Tank testing
JP3558555B2 (ja) * 1999-06-30 2004-08-25 株式会社日立ユニシアオートモティブ 蒸発燃料処理装置のリーク診断装置
US6298712B1 (en) * 1999-07-14 2001-10-09 Hickok Incorporated Fuel cap tester
US6474313B1 (en) 1999-11-19 2002-11-05 Siemens Canada Limited Connection between an integrated pressure management apparatus and a vapor collection canister
US6470861B1 (en) 1999-11-19 2002-10-29 Siemens Canada Limited Fluid flow through an integrated pressure management apparatus
US6484555B1 (en) 1999-11-19 2002-11-26 Siemens Canada Limited Method of calibrating an integrated pressure management apparatus
US6983641B1 (en) * 1999-11-19 2006-01-10 Siemens Vdo Automotive Inc. Method of managing pressure in a fuel system
US6470908B1 (en) 1999-11-19 2002-10-29 Siemens Canada Limited Pressure operable device for an integrated pressure management apparatus
US6478045B1 (en) 1999-11-19 2002-11-12 Siemens Canada Limited Solenoid for an integrated pressure management apparatus
US6460566B1 (en) 1999-11-19 2002-10-08 Siemens Canada Limited Integrated pressure management system for a fuel system
US6505514B1 (en) 1999-11-19 2003-01-14 Siemens Canada Limited Sensor arrangement for an integrated pressure management apparatus
US6453942B1 (en) 1999-11-19 2002-09-24 Siemens Canada Limited Housing for integrated pressure management apparatus
US6474314B1 (en) * 1999-11-19 2002-11-05 Siemens Canada Limited Fuel system with intergrated pressure management
US6450153B1 (en) 1999-11-19 2002-09-17 Siemens Canada Limited Integrated pressure management apparatus providing an on-board diagnostic
US6502560B1 (en) 1999-11-19 2003-01-07 Siemens Canada Limited Integrated pressure management apparatus having electronic control circuit
DE10018441B4 (de) * 2000-04-13 2005-12-29 Robert Bosch Gmbh Verfahren und Vorrichtung zur umweltschonenden Dichtheitsprüfung eines Behältnisses
US6708552B2 (en) 2001-06-29 2004-03-23 Siemens Automotive Inc. Sensor arrangement for an integrated pressure management apparatus
US6931919B2 (en) 2001-06-29 2005-08-23 Siemens Vdo Automotive Inc. Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus
KR20040000193A (ko) * 2002-06-24 2004-01-03 (주)수도프리미엄엔지니어링 자동차 증발가스 시험장치
US6913002B2 (en) * 2002-12-13 2005-07-05 Hitachi, Ltd. Fuel feed system
JP4337374B2 (ja) * 2003-02-07 2009-09-30 三菱電機株式会社 蒸散燃料ガスリーク検出装置
US7121267B2 (en) * 2003-03-07 2006-10-17 Siemens Vdo Automotive, Inc. Poppet for an integrated pressure management apparatus and fuel system and method of minimizing resonance
US7168297B2 (en) 2003-10-28 2007-01-30 Environmental Systems Products Holdings Inc. System and method for testing fuel tank integrity
US7347082B1 (en) 2004-02-26 2008-03-25 Systech International, Llc Method and apparatus for testing vehicle fuel system integrity
JP4322799B2 (ja) * 2004-03-25 2009-09-02 株式会社日本自動車部品総合研究所 内燃機関の蒸発燃料処理装置
US20060053868A1 (en) * 2004-09-16 2006-03-16 Jae Chung Fuel vapor detection system for vehicles
JP4598193B2 (ja) * 2005-10-21 2010-12-15 株式会社デンソー 蒸発燃料処理装置
JP4535448B2 (ja) * 2005-11-30 2010-09-01 株式会社デンソー 蒸発燃料処理装置
JP5036201B2 (ja) * 2006-03-23 2012-09-26 株式会社デンソー 発振型センサの利得制御方法、発振型センサ装置、蒸発燃料状態検出装置及び内燃機関のコントロールユニット
DE102006034076A1 (de) * 2006-07-24 2008-01-31 Robert Bosch Gmbh Verfahren zur Tankleckdiagnose in einer Tankentlüftungsvorrichtung
US7966996B1 (en) * 2010-03-03 2011-06-28 Ford Global Technologies, Llc Vacuum supply system
US8590514B2 (en) 2010-06-11 2013-11-26 Ford Global Technologies, Llc Airflow generating device for alternator cooling and vapor canister purging
US8074627B2 (en) * 2010-07-14 2011-12-13 Ford Global Technologies, Llc Automotive fuel system leak testing
US9376991B2 (en) * 2012-07-24 2016-06-28 Ford Global Technologies, Llc Passive venturi pump for leak diagnostics and refueling
US9284922B2 (en) 2013-01-29 2016-03-15 Ford Global Technologies, Llc Controlling the closing force of a canister purge valve prior to executing leak diagnostic
US9322342B2 (en) * 2013-04-17 2016-04-26 Ford Global Technologies, Llc Hybrid vehicle fuel system leak detection
US20150025781A1 (en) * 2013-07-18 2015-01-22 Ford Global Technologies, Llc Canister purge valve leak detection system
JP6443212B2 (ja) * 2015-05-12 2018-12-26 株式会社デンソー 燃料蒸気漏れ検出装置
US10247116B2 (en) 2016-05-25 2019-04-02 Fca Us Llc Hydrocarbon vapor start techniques using a purge pump and hydrocarbon sensor
US9879623B2 (en) 2016-05-25 2018-01-30 Fca Us Llc Evaporative emissions control system including a purge pump and hydrocarbon sensor
US9970391B2 (en) 2016-05-25 2018-05-15 Fca Us Llc Techniques for monitoring purge flow and detecting vapor canister leaks in an evaporative emissions system
KR102540434B1 (ko) * 2016-11-04 2023-06-05 현대자동차 주식회사 차량의 누설 진단 장치 및 방법

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Publication number Priority date Publication date Assignee Title
CH583415A5 (de) * 1974-06-28 1976-12-31 Cerberus Ag
US5065350A (en) * 1990-03-14 1991-11-12 William L. Sweet Method and apparatus for leak testing
DE4124465C2 (de) * 1991-07-24 2002-11-14 Bosch Gmbh Robert Tankentlüftungsanlage und Kraftfahrzeug mit einer solchen sowie Verfahren und Vorrichtung zum Prüfen der Funktionsfähigkeit einer solchen
US5146902A (en) * 1991-12-02 1992-09-15 Siemens Automotive Limited Positive pressure canister purge system integrity confirmation
US5297529A (en) * 1993-01-27 1994-03-29 Siemens Automotive Limited Positive pressure canister purge system integrity confirmation

Also Published As

Publication number Publication date
DE69500290T2 (de) 1997-10-30
EP0670423A1 (de) 1995-09-06
US5390645A (en) 1995-02-21
JP3542659B2 (ja) 2004-07-14
JPH07294368A (ja) 1995-11-10
EP0670423B1 (de) 1997-05-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee