JP5240414B2 - 内燃機関の異常検出装置 - Google Patents
内燃機関の異常検出装置 Download PDFInfo
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- JP5240414B2 JP5240414B2 JP2012525785A JP2012525785A JP5240414B2 JP 5240414 B2 JP5240414 B2 JP 5240414B2 JP 2012525785 A JP2012525785 A JP 2012525785A JP 2012525785 A JP2012525785 A JP 2012525785A JP 5240414 B2 JP5240414 B2 JP 5240414B2
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- 230000005856 abnormality Effects 0.000 title claims abstract description 103
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 59
- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 239000000446 fuel Substances 0.000 claims abstract description 522
- 239000002828 fuel tank Substances 0.000 claims abstract description 41
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims description 54
- 239000007924 injection Substances 0.000 claims description 54
- 230000002159 abnormal effect Effects 0.000 claims description 23
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 191
- 238000000034 method Methods 0.000 description 45
- 230000008569 process Effects 0.000 description 13
- 239000003502 gasoline Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
- F02D19/0634—Determining a density, viscosity, composition or concentration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/085—Control based on the fuel type or composition
- F02D19/087—Control based on the fuel type or composition with determination of densities, viscosities, composition, concentration or mixture ratios of fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
- F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
- F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/082—Premixed fuels, i.e. emulsions or blends
- F02D19/084—Blends of gasoline and alcohols, e.g. E85
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/14—Timing of measurement, e.g. synchronisation of measurements to the engine cycle
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
- F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel tank
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2852—Alcohol in fuels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
本発明の実施の形態1について図を参照して説明する。
次に、本発明の実施の形態2について図を参照して説明する。
次に、本発明の実施の形態3について図を参照して説明する。
次に、本発明の実施の形態4について図を参照して説明する。
次に、本発明の実施の形態5について図を参照して説明する。
以上、本発明の実施の形態について説明したが、本発明は上述の実施の形態に限定されるものではない。本発明は、その趣旨を逸脱しない範囲で、上述の実施の形態ものから種々変形して実施することができる。
4 燃料ポンプ
6 メイン流路
8 デリバリパイプ
10 インジェクタ
12 リターン流路
14 プレッシャレギュレータ
16 エタノール濃度センサ
16a 電極部
18 燃料容器
18a 燃料排出口
18b 空気導入口
20 ECU
22 燃料残量センサ
30 燃料排出弁
32 燃料注入流路
34 燃料注入弁
36 燃料注入ポンプ
38 燃料注入流路
Claims (13)
- 使用燃料の性状に応じて運転が制御される内燃機関のための異常検出装置であって、
計測部に液体が存在する場合と気体が存在する場合とでは出力値のレベルが異なり、前記計測部に燃料が存在する場合にはその性状に応じて出力値が決まる燃料性状センサと、
燃料ポンプとインジェクタとを接続する燃料流路の本流路から離れて設けられた、前記燃料性状センサの前記計測部が収容される燃料容器と、
燃料タンクから汲み上げられた燃料を前記燃料容器に注入する燃料注入手段と、
注入された燃料を前記燃料容器から排出する燃料排出手段と、
前記燃料容器に燃料が注入されたときの前記燃料性状センサの出力値(以下、第1センサ出力値)を取り込む第1センサ出力値取得手段と、
前記燃料容器から燃料が排出されたときの前記燃料性状センサの出力値(以下、第2センサ出力値)を取り込む第2センサ出力値取得手段と、
前記第1センサ出力値と前記第2センサ出力値とを判断材料にして前記燃料性状センサの異常の有無を判定する異常判定手段と、
を備えることを特徴とする内燃機関の異常検出装置。 - 前記燃料容器は、前記燃料タンクの内部に配置されていることを特徴とする請求項1に記載の内燃機関の異常検出装置。
- 前記燃料排出手段は、
前記燃料容器の下部に設けられて、注入された燃料を前記燃料容器から排出する燃料排出口と、
前記燃料容器の上部に設けられて、前記燃料容器の内側に空気を導入する空気導入口と、
を含むことを特徴とする請求項2に記載の内燃機関の異常検出装置。 - 前記燃料排出手段は、
前記燃料排出口に接続された燃料排出弁と、
前記燃料排出弁の開/閉を制御する燃料排出弁制御手段と、
をさらに含むことを特徴とする請求項3に記載の内燃機関の異常検出装置。 - 前記燃料注入手段は、
前記本流路から分岐して前記燃料容器に接続される支流路と、
前記支流路に設けられて、その開/閉によって前記本流路を流れる燃料の圧力を自動調整する圧力調整弁と、
を含むことを特徴とする請求項2乃至4の何れか1項に記載の内燃機関の異常検出装置。 - 前記燃料注入手段は、
前記本流路から分岐して前記燃料容器に接続される支流路と、
前記支流路に設けられた燃料注入弁と、
前記燃料注入弁の開/閉を制御する燃料注入弁制御手段と、
を含むことを特徴とする請求項2乃至4の何れか1項に記載の内燃機関の異常検出装置。 - 前記燃料注入手段は、
前記燃料タンクから燃料を汲み上げて前記燃料容器に供給する燃料注入ポンプと、
前記燃料注入ポンプの運転を制御する燃料注入ポンプ制御手段と、
を含むことを特徴とする請求項2乃至4の何れか1項に記載の内燃機関の異常検出装置。 - 前記燃料タンク内の燃料の残量に応じて出力値が決まる燃料残量センサと、
前記燃料残量センサの出力値から計測された燃料残量を所定の基準残量と比較することにより、前記燃料容器内に燃料が浸入する程度まで前記燃料タンク内に燃料が溜まっているかどうか判断する燃料浸入判定手段と、
前記燃料タンク内の燃料残量が前記基準残量を超える場合には、前記異常判定手段による前記燃料性状センサの異常の有無の判定を禁止する異常判定禁止手段と、
をさらに備えることを特徴とする請求項2乃至7の何れか1項に記載の内燃機関の異常検出装置。 - 前記第1センサ出力値取得手段は、イグニッションスイッチがオフにされたタイミングで前記燃料性状センサの出力値を取り込み、
前記第2センサ出力値取得手段は、前記内燃機関の停止後、前記イグニッションスイッチが再びオンにされたタイミングで前記燃料性状センサの出力値を取り込む
ことを特徴とする請求項5に記載の内燃機関の異常検出装置。 - 前記第2センサ出力値取得手段は、イグニッションスイッチがオンにされたタイミングで前記燃料性状センサの出力値を取り込み、
前記第1センサ出力値取得手段は、前記イグニッションスイッチがオンにされてから所定時間経過後において前記燃料性状センサの出力値を取り込むことを特徴とする請求項5に記載の内燃機関の異常検出装置。 - 前記燃料性状センサの前記計測部は、前記燃料容器内に燃料が注入された場合に前記計測部の空気を上方に抜くための空気開放部を備えていることを特徴とする請求項3に記載の内燃機関の異常検出装置。
- 前記異常判定手段は、前記第1センサ出力値と前記第2センサ出力値との差と所定の基準差との比較結果から前記燃料性状センサの異常の有無を判定することを特徴とする請求項1乃至11の何れか1項に記載の内燃機関の異常検出装置。
- 前記異常判定手段は、前記第1センサ出力値と所定の第1閾値との比較結果、及び、前記第2センサ出力値と所定の第2閾値との比較結果から前記燃料性状センサの異常の有無を判定することを特徴とする請求項1乃至11の何れか1項に記載の内燃機関の異常検出装置。
Applications Claiming Priority (1)
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PCT/JP2010/073760 WO2012090315A1 (ja) | 2010-12-28 | 2010-12-28 | 内燃機関の異常検出装置 |
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JP5240414B2 true JP5240414B2 (ja) | 2013-07-17 |
JPWO2012090315A1 JPWO2012090315A1 (ja) | 2014-06-05 |
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US (1) | US8763587B2 (ja) |
EP (1) | EP2660447B1 (ja) |
JP (1) | JP5240414B2 (ja) |
CN (1) | CN102918244B (ja) |
BR (1) | BR112012016680B1 (ja) |
WO (1) | WO2012090315A1 (ja) |
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WO2012090316A1 (ja) * | 2010-12-28 | 2012-07-05 | トヨタ自動車株式会社 | 内燃機関の異常検出装置 |
JP5375859B2 (ja) | 2011-03-11 | 2013-12-25 | トヨタ自動車株式会社 | 内燃機関の燃料供給システム |
JP5941077B2 (ja) * | 2014-01-31 | 2016-06-29 | 富士重工業株式会社 | 燃料噴射装置 |
KR102053363B1 (ko) * | 2018-10-26 | 2019-12-06 | 현대오트론 주식회사 | Ffv 차량의 에탄올 센서의 타당성 진단방법 및 이를 통해 운용되는 ffv 차량 |
JP7294236B2 (ja) * | 2020-05-21 | 2023-06-20 | トヨタ自動車株式会社 | 燃料供給装置の制御装置 |
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WO2011101980A1 (ja) * | 2010-02-19 | 2011-08-25 | トヨタ自動車株式会社 | 燃料性状検出装置の異常検出装置 |
JP2011179459A (ja) * | 2010-03-03 | 2011-09-15 | Toyota Motor Corp | 燃料性状センサの異常判定装置 |
CN102859175A (zh) * | 2010-04-15 | 2013-01-02 | 丰田自动车株式会社 | 燃料性状检测装置的异常检测装置 |
WO2012090316A1 (ja) * | 2010-12-28 | 2012-07-05 | トヨタ自動車株式会社 | 内燃機関の異常検出装置 |
JP5375859B2 (ja) * | 2011-03-11 | 2013-12-25 | トヨタ自動車株式会社 | 内燃機関の燃料供給システム |
-
2010
- 2010-12-28 EP EP10857091.2A patent/EP2660447B1/en not_active Not-in-force
- 2010-12-28 US US13/519,633 patent/US8763587B2/en active Active
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- 2010-12-28 WO PCT/JP2010/073760 patent/WO2012090315A1/ja active Application Filing
- 2010-12-28 BR BR112012016680A patent/BR112012016680B1/pt not_active IP Right Cessation
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JPH04203434A (ja) * | 1990-11-30 | 1992-07-24 | Honda Motor Co Ltd | 特定成分濃度センサの異常検出装置 |
JP2008014741A (ja) * | 2006-07-05 | 2008-01-24 | Komatsu Ltd | 作業機械の燃料性状検出装置 |
JP2009191650A (ja) * | 2008-02-12 | 2009-08-27 | Denso Corp | 内燃機関の制御装置 |
Also Published As
Publication number | Publication date |
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EP2660447A1 (en) | 2013-11-06 |
CN102918244B (zh) | 2014-03-12 |
CN102918244A (zh) | 2013-02-06 |
US20130263824A1 (en) | 2013-10-10 |
EP2660447B1 (en) | 2016-10-19 |
WO2012090315A1 (ja) | 2012-07-05 |
JPWO2012090315A1 (ja) | 2014-06-05 |
BR112012016680B1 (pt) | 2019-12-10 |
EP2660447A4 (en) | 2014-07-02 |
BR112012016680A8 (pt) | 2019-11-19 |
US8763587B2 (en) | 2014-07-01 |
BR112012016680A2 (ja) | 2018-06-05 |
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