WO2008129608A1 - 内燃機関の制御装置 - Google Patents

内燃機関の制御装置 Download PDF

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Publication number
WO2008129608A1
WO2008129608A1 PCT/JP2007/057776 JP2007057776W WO2008129608A1 WO 2008129608 A1 WO2008129608 A1 WO 2008129608A1 JP 2007057776 W JP2007057776 W JP 2007057776W WO 2008129608 A1 WO2008129608 A1 WO 2008129608A1
Authority
WO
WIPO (PCT)
Prior art keywords
water temperature
main fuel
cooling water
alcohol concentration
region
Prior art date
Application number
PCT/JP2007/057776
Other languages
English (en)
French (fr)
Inventor
Kenji Nagasaki
Koji Wada
Original Assignee
Denso Corporation
Toyota Jidosha Kabushiki Kaisha
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 Denso Corporation, Toyota Jidosha Kabushiki Kaisha filed Critical Denso Corporation
Priority to US12/449,485 priority Critical patent/US8200412B2/en
Priority to PCT/JP2007/057776 priority patent/WO2008129608A1/ja
Priority to BRPI0721445-6A priority patent/BRPI0721445A2/pt
Publication of WO2008129608A1 publication Critical patent/WO2008129608A1/ja

Links

Classifications

    • 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
    • F02D19/0623—Failure diagnosis or prevention; Safety measures; Testing
    • 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
    • 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
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

　冷却水温センサ（２６）の異常時には、アルコール濃度センサ（３７）で検出した主燃料のアルコール濃度が高濃度領域のときに補助燃料の供給を実施する。これにより、実際の冷却水温が低温領域で且つ主燃料のアルコール濃度が高濃度領域のとき、つまり主燃料の揮発性を十分に確保できないときに確実に補助燃料の供給を実施できるようにする。更に、冷却水温センサ（２６）の異常時には、主燃料のアルコール濃度が高いときに暖機後の標準冷却水温よりも低い疑似水温を設定し、この疑似水温を用いて主燃料噴射量の暖機増量係数を算出する。これにより、実際の冷却水温が低温領域で且つ主燃料のアルコール濃度が高濃度領域のときに主燃料の噴射量を十分に増量補正できるようにする。
PCT/JP2007/057776 2006-04-04 2007-04-06 内燃機関の制御装置 WO2008129608A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/449,485 US8200412B2 (en) 2006-04-04 2007-04-06 Controller for internal combustion engine
PCT/JP2007/057776 WO2008129608A1 (ja) 2007-04-06 2007-04-06 内燃機関の制御装置
BRPI0721445-6A BRPI0721445A2 (pt) 2007-04-06 2007-04-06 controlador para um motor de combustço interna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/057776 WO2008129608A1 (ja) 2007-04-06 2007-04-06 内燃機関の制御装置

Publications (1)

Publication Number Publication Date
WO2008129608A1 true WO2008129608A1 (ja) 2008-10-30

Family

ID=39875157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/057776 WO2008129608A1 (ja) 2006-04-04 2007-04-06 内燃機関の制御装置

Country Status (2)

Country Link
BR (1) BRPI0721445A2 (ja)
WO (1) WO2008129608A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848737A (ja) * 1981-09-18 1983-03-22 Toyota Motor Corp 低蒸気圧燃料を主燃料とするエンジン
JPS6176738A (ja) * 1984-09-21 1986-04-19 Nippon Denso Co Ltd 車両用制御装置
JPS63230942A (ja) * 1987-03-18 1988-09-27 Fuji Heavy Ind Ltd 冷却水系異常時の燃料噴射量制御装置
JPH02163451A (ja) * 1988-12-15 1990-06-22 Fuji Heavy Ind Ltd アルコールエンジンの燃料噴射量制御装置
JP2004339969A (ja) * 2003-05-14 2004-12-02 Honda Motor Co Ltd 内燃機関用温度センサの故障診断装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848737A (ja) * 1981-09-18 1983-03-22 Toyota Motor Corp 低蒸気圧燃料を主燃料とするエンジン
JPS6176738A (ja) * 1984-09-21 1986-04-19 Nippon Denso Co Ltd 車両用制御装置
JPS63230942A (ja) * 1987-03-18 1988-09-27 Fuji Heavy Ind Ltd 冷却水系異常時の燃料噴射量制御装置
JPH02163451A (ja) * 1988-12-15 1990-06-22 Fuji Heavy Ind Ltd アルコールエンジンの燃料噴射量制御装置
JP2004339969A (ja) * 2003-05-14 2004-12-02 Honda Motor Co Ltd 内燃機関用温度センサの故障診断装置

Also Published As

Publication number Publication date
BRPI0721445A2 (pt) 2013-01-15

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