EP0860601A3 - A fuel injection system for an internal combustion engine - Google Patents

A fuel injection system for an internal combustion engine Download PDF

Info

Publication number
EP0860601A3
EP0860601A3 EP98102970A EP98102970A EP0860601A3 EP 0860601 A3 EP0860601 A3 EP 0860601A3 EP 98102970 A EP98102970 A EP 98102970A EP 98102970 A EP98102970 A EP 98102970A EP 0860601 A3 EP0860601 A3 EP 0860601A3
Authority
EP
European Patent Office
Prior art keywords
fuel
pressure
common rail
fuel injection
temperature
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.)
Granted
Application number
EP98102970A
Other languages
German (de)
French (fr)
Other versions
EP0860601A2 (en
EP0860601B1 (en
Inventor
Motoichi Murakami
Tomihisa Oda
Yuichi Hokazono
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0860601A2 publication Critical patent/EP0860601A2/en
Publication of EP0860601A3 publication Critical patent/EP0860601A3/en
Application granted granted Critical
Publication of EP0860601B1 publication Critical patent/EP0860601B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3827—Common rail control systems for diesel engines
    • 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
    • F02D2041/224—Diagnosis of the fuel system
    • 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
    • F02D2200/0602—Fuel pressure
    • F02D2200/0604—Estimation of fuel pressure
    • 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
    • F02D2200/0606—Fuel temperature

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

In the fuel injection system, fuel is supplied to a common rail from a high pressure fuel pump, and injected into the cylinders of an engine, from the common rail, via fuel injection valves. An electronic control unit (ECU) of the engine controls the pressure in the common rail at a value determined by the operating conditions of the engine. The ECU further detects the pressure and the temperature of the fuel in the common rail, and determines the bulk modulus of elasticity of the fuel based on the pressure and the temperature of the fuel. The ECU calculates an estimated value of the pressure change in the common rail during the fuel injection period using the determined bulk modulus. If the difference between the estimated value of the pressure change and the pressure change actually measured during the fuel injection period is large, the ECU determines that the fuel injection system has failed. Since the estimated value of the pressure change is calculated based on the bulk modulus of elasticity which is determined in accordance with the actual pressure and temperature of the fuel, the accurate estimated value is obtained even if the pressure and the temperature of the fuel in the common rail change over a very wide range.
EP19980102970 1997-02-21 1998-02-20 A fuel injection system for an internal combustion engine Expired - Lifetime EP0860601B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP3799697 1997-02-21
JP3799697 1997-02-21
JP37996/97 1997-02-21
JP200601/97 1997-07-25
JP20060197 1997-07-25
JP20060197A JP3796912B2 (en) 1997-02-21 1997-07-25 Fuel injection device for internal combustion engine

Publications (3)

Publication Number Publication Date
EP0860601A2 EP0860601A2 (en) 1998-08-26
EP0860601A3 true EP0860601A3 (en) 2000-01-19
EP0860601B1 EP0860601B1 (en) 2002-11-27

Family

ID=26377181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980102970 Expired - Lifetime EP0860601B1 (en) 1997-02-21 1998-02-20 A fuel injection system for an internal combustion engine

Country Status (3)

Country Link
EP (1) EP0860601B1 (en)
JP (1) JP3796912B2 (en)
DE (1) DE69809614T2 (en)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69818119T2 (en) * 1997-02-21 2004-06-09 Toyota Jidosha K.K., Toyota Fuel injection system for an internal combustion engine
DE19833086B4 (en) * 1998-07-23 2013-08-01 Robert Bosch Gmbh Maximum value method and device for detecting a leak in a fuel supply system of an internal combustion engine
DE60045229D1 (en) * 1999-02-15 2010-12-30 Toyota Motor Co Ltd A fuel pressure control apparatus and method for a high pressure fuel injection system
DE19908352A1 (en) * 1999-02-26 2000-08-31 Bosch Gmbh Robert Fuel injection method for an internal combustion engine
WO2000055495A1 (en) * 1999-03-17 2000-09-21 Hitachi, Ltd. Fuel feed pump
US6112150A (en) * 1999-04-09 2000-08-29 Cummins Engine Co Inc Fault recognition system and method for an internal combustion engine
FR2803875B1 (en) * 2000-01-13 2002-07-19 Magneti Marelli France METHOD FOR DETERMINING AND MONITORING THE PRESSURE OF FUEL CONTAINED IN A SUPPLY RAMP OF AN INTERNAL COMBUSTION ENGINE
JP2001221118A (en) * 2000-02-07 2001-08-17 Bosch Automotive Systems Corp Fuel injection device
JP3798615B2 (en) 2000-10-27 2006-07-19 トヨタ自動車株式会社 Abnormality detection device for high-pressure fuel supply system
JP4089640B2 (en) * 2004-03-02 2008-05-28 トヨタ自動車株式会社 Control device for internal combustion engine
JP4089641B2 (en) 2004-03-02 2008-05-28 トヨタ自動車株式会社 EGR control device for internal combustion engine
JP4052261B2 (en) * 2004-03-02 2008-02-27 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
WO2006040617A1 (en) * 2004-10-12 2006-04-20 Ford Otomativ Sanayi Anonim Sirketi A method and apparatus for monitoring fuel injection
DE102004055575A1 (en) 2004-11-18 2006-05-24 Robert Bosch Gmbh Method and device for leakage testing of a fuel injection valve of an internal combustion engine
JP2006258039A (en) * 2005-03-18 2006-09-28 Toyota Motor Corp Fuel supply device of internal combustion engine
JP4534865B2 (en) * 2005-05-16 2010-09-01 株式会社デンソー Intake route monitoring device for fuel supply device
JP4539503B2 (en) * 2005-09-06 2010-09-08 スズキ株式会社 Failure diagnosis device for high pressure fuel system of engine
DE102005043971A1 (en) * 2005-09-15 2007-03-22 Robert Bosch Gmbh Method and device for monitoring a fuel metering system
DE102007005685B4 (en) * 2007-02-05 2009-04-23 Continental Automotive Gmbh Method for determining a control variable for a pressure control of a high pressure accumulator in an injection system
DE102007011654A1 (en) * 2007-03-09 2008-09-11 Continental Automotive Gmbh Method and device for volume flow control of an injection system
JP4951380B2 (en) * 2007-03-26 2012-06-13 日立オートモティブシステムズ株式会社 High pressure fuel system controller
GB2449706A (en) * 2007-06-01 2008-12-03 Scania Cv Ab Identifying a Malfunctioning Fuel Injector
DE102008017160B3 (en) * 2008-04-03 2009-07-09 Continental Automotive Gmbh Method for determining the effective compressibility module of an injection system
DE102008031535B3 (en) * 2008-07-03 2010-01-21 Continental Automotive Gmbh Method for determining a temperature of a fuel of an injection system
JP5220122B2 (en) * 2008-10-28 2013-06-26 ボッシュ株式会社 Pressure sensor diagnosis method and common rail fuel injection control device
DE102009003279A1 (en) * 2009-05-20 2010-11-25 Robert Bosch Gmbh Method for determining fuel temperature in high pressure range of fuel injection system, particularly of internal combustion engine of motor vehicle, involves determining characteristic frequency of high pressure range
JP5278290B2 (en) 2009-11-27 2013-09-04 株式会社デンソー Failure diagnosis device for fuel injection system
JP5206660B2 (en) * 2009-12-18 2013-06-12 トヨタ自動車株式会社 Abnormality judgment device for fuel supply system
DE102010013602B4 (en) * 2010-03-31 2015-09-17 Continental Automotive Gmbh A method for detecting a malfunction of an electronically controlled fuel injection system of an internal combustion engine
JP5126311B2 (en) * 2010-07-22 2013-01-23 株式会社デンソー Fuel temperature detector
JP5348154B2 (en) * 2011-02-16 2013-11-20 株式会社デンソー Failure injection device for fuel injection system
JP5212502B2 (en) * 2011-02-18 2013-06-19 株式会社デンソー Fuel injection device
DE102011077404B4 (en) * 2011-06-10 2012-12-27 Continental Automotive Gmbh Method for determining the fuel type in a high-pressure injection device of an internal combustion engine
JP5459302B2 (en) * 2011-12-26 2014-04-02 株式会社デンソー Abnormality diagnosis device for internal combustion engine control system
CN103075286B (en) * 2012-12-27 2014-11-05 潍柴动力股份有限公司 Method and device for detecting fault of high-pressure oil pump incapable of establishing low rail pressure
DE102013201997A1 (en) 2013-02-07 2014-08-07 Robert Bosch Gmbh Method and device for operating a fuel injection device, in particular a motor vehicle
EP2835518A1 (en) * 2013-08-05 2015-02-11 Delphi International Operations Luxembourg S.à r.l. Method to Determine Bulk Modulus of a Fuel
SE539683C2 (en) * 2013-11-08 2017-10-31 Scania Cv Ab Method for determining the bulk module of fuels
DE102016224481A1 (en) * 2016-12-08 2018-06-14 Robert Bosch Gmbh Method for predicting a pressure in a fuel injector
DE102016225435B3 (en) * 2016-12-19 2018-02-15 Continental Automotive Gmbh Method for operating an internal combustion engine with fuel detection
US11181089B2 (en) 2019-02-20 2021-11-23 Ford Global Technologies, Llc Fuel composition and aging estimation
US10801428B2 (en) 2019-02-20 2020-10-13 Ford Global Technologies, Llc Fuel composition and aging estimation
US10801462B2 (en) 2019-02-20 2020-10-13 Ford Global Technologies, Llc Fuel composition and aging estimation
DE102019205680B4 (en) * 2019-04-18 2021-08-05 Vitesco Technologies GmbH Method and device for determining the fuel temperature of a fuel
CN111237072B (en) * 2020-03-27 2022-08-05 潍柴动力股份有限公司 Electronic control diesel engine nozzle fault identification method and system and electronic control unit
WO2023026514A1 (en) * 2021-08-23 2023-03-02 日立Astemo株式会社 Solenoid valve control device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0501459A2 (en) * 1991-02-27 1992-09-02 Nippondenso Co., Ltd. Common-rail fuel injection system and related method
EP0516196A2 (en) * 1988-11-24 1992-12-02 Nippondenso Co., Ltd. Variable-discharge high pressure pump
EP0651150A2 (en) * 1993-11-02 1995-05-03 Toyota Jidosha Kabushiki Kaisha Fuel injection apparatus for engine
US5529044A (en) * 1994-07-29 1996-06-25 Caterpillar Inc. Method for controlling the fuel injection rate of a hydraulically-actuated fuel injection system
EP0860600A2 (en) * 1997-02-21 1998-08-26 Toyota Jidosha Kabushiki Kaisha A fuel injection system for an internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516196A2 (en) * 1988-11-24 1992-12-02 Nippondenso Co., Ltd. Variable-discharge high pressure pump
EP0501459A2 (en) * 1991-02-27 1992-09-02 Nippondenso Co., Ltd. Common-rail fuel injection system and related method
EP0651150A2 (en) * 1993-11-02 1995-05-03 Toyota Jidosha Kabushiki Kaisha Fuel injection apparatus for engine
US5529044A (en) * 1994-07-29 1996-06-25 Caterpillar Inc. Method for controlling the fuel injection rate of a hydraulically-actuated fuel injection system
EP0860600A2 (en) * 1997-02-21 1998-08-26 Toyota Jidosha Kabushiki Kaisha A fuel injection system for an internal combustion engine

Also Published As

Publication number Publication date
DE69809614D1 (en) 2003-01-09
DE69809614T2 (en) 2003-04-10
EP0860601A2 (en) 1998-08-26
EP0860601B1 (en) 2002-11-27
JPH10299557A (en) 1998-11-10
JP3796912B2 (en) 2006-07-12

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