EP1304471A3 - Fuel pressure control apparatus - Google Patents

Fuel pressure control apparatus Download PDF

Info

Publication number
EP1304471A3
EP1304471A3 EP03001464A EP03001464A EP1304471A3 EP 1304471 A3 EP1304471 A3 EP 1304471A3 EP 03001464 A EP03001464 A EP 03001464A EP 03001464 A EP03001464 A EP 03001464A EP 1304471 A3 EP1304471 A3 EP 1304471A3
Authority
EP
European Patent Office
Prior art keywords
fuel
pressure
fuel pressure
accumulator line
control apparatus
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.)
Withdrawn
Application number
EP03001464A
Other languages
German (de)
French (fr)
Other versions
EP1304471A2 (en
Inventor
Tatsumasa Sugiyama
Yuuichirou Katou
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 EP1304471A2 publication Critical patent/EP1304471A2/en
Publication of EP1304471A3 publication Critical patent/EP1304471A3/en
Withdrawn legal-status Critical Current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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
    • 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
    • F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
    • 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
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure
    • 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
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
    • F02D41/3872—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves characterised by leakage flow in injectors

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

Abstract

The present invention proposes a fuel pressure control apparatus for a high-pressure fuel injection system which sufficiently reduces a fuel pressure in an accumulator line (20) while preventing the high-pressure fuel injection system from being adversely affected. The fuel pressure control apparatus for the high-pressure fuel injection system is equipped with an accumulator line (20) for accumulating fuel supplied from a fuel pump (30) at a high pressure and supplying the fuel to fuel injection valves (12), and with a relief valve (22) for discharging fuel in the accumulator line (20). Furthermore, the apparatus is equipped with fuel pressure control means (68) for detecting a fuel pressure in the accumulator line (20) and driving the relief valve (22) so as to reduce the fuel pressure in accordance with a pressure reduction requirement based on a comparison between the detected fuel pressure and a target pressure. An electronic control unit (60) determines a detection timing of the fuel pressure in such a manner as to prevent a period during which the fuel pump (30) force-feeds fuel from overlapping with the detection timing of the fuel pressure by detection means (68).
EP03001464A 1999-02-19 2000-02-03 Fuel pressure control apparatus Withdrawn EP1304471A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4135899 1999-02-19
JP04135899A JP4023020B2 (en) 1999-02-19 1999-02-19 Fuel pressure control device for high pressure fuel injection system
EP00102392A EP1030048B1 (en) 1999-02-19 2000-02-03 Fuel pressure control device for high pressure fuel injection system

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP00102392A Division EP1030048B1 (en) 1999-02-19 2000-02-03 Fuel pressure control device for high pressure fuel injection system
EP00102392A Division-Into EP1030048B1 (en) 1999-02-19 2000-02-03 Fuel pressure control device for high pressure fuel injection system

Publications (2)

Publication Number Publication Date
EP1304471A2 EP1304471A2 (en) 2003-04-23
EP1304471A3 true EP1304471A3 (en) 2004-05-19

Family

ID=12606278

Family Applications (3)

Application Number Title Priority Date Filing Date
EP03001464A Withdrawn EP1304471A3 (en) 1999-02-19 2000-02-03 Fuel pressure control apparatus
EP00102392A Expired - Lifetime EP1030048B1 (en) 1999-02-19 2000-02-03 Fuel pressure control device for high pressure fuel injection system
EP03001463A Expired - Lifetime EP1304470B1 (en) 1999-02-19 2000-02-03 Fuel pressure control apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP00102392A Expired - Lifetime EP1030048B1 (en) 1999-02-19 2000-02-03 Fuel pressure control device for high pressure fuel injection system
EP03001463A Expired - Lifetime EP1304470B1 (en) 1999-02-19 2000-02-03 Fuel pressure control apparatus

Country Status (4)

Country Link
EP (3) EP1304471A3 (en)
JP (1) JP4023020B2 (en)
DE (2) DE60016989T2 (en)
ES (2) ES2232336T3 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4304887B2 (en) * 2001-06-19 2009-07-29 株式会社デンソー Fuel supply system for alternative fuels
JP3724392B2 (en) 2001-07-26 2005-12-07 トヨタ自動車株式会社 Fuel injection control device for internal combustion engine
DE10352005A1 (en) * 2003-11-07 2005-06-09 Robert Bosch Gmbh Method for operating an internal combustion engine
JP4238166B2 (en) 2004-03-22 2009-03-11 ヤマハ発動機株式会社 Fuel supply device and vehicle
JP4432610B2 (en) 2004-05-17 2010-03-17 トヨタ自動車株式会社 Fuel supply device for internal combustion engine
JP4603867B2 (en) * 2004-12-07 2010-12-22 日立オートモティブシステムズ株式会社 Control device and fuel supply system for variable displacement fuel pump
EP1860318B1 (en) 2005-03-18 2019-02-20 Toyota Jidosha Kabushiki Kaisha Dual circuit fuel injection internal combustion engine
ES2724733T3 (en) 2005-03-18 2019-09-13 Toyota Motor Co Ltd Dual System Fuel Injection Engine
EP1860303B1 (en) 2005-03-18 2019-10-30 Toyota Jidosha Kabushiki Kaisha Internal combustion engine
CA2602060C (en) 2005-03-18 2011-05-17 Toyota Jidosha Kabushiki Kaisha Internal combustion engine provided with double system of fuel injection
JP4544153B2 (en) * 2005-12-27 2010-09-15 株式会社デンソー Fuel injection control device
JP4600369B2 (en) * 2006-09-05 2010-12-15 株式会社デンソー Pressure reducing valve delay compensation device and program
JP4976318B2 (en) * 2008-01-30 2012-07-18 日立オートモティブシステムズ株式会社 Fuel injection device for internal combustion engine
DE102009031528B3 (en) * 2009-07-02 2010-11-11 Mtu Friedrichshafen Gmbh Method for controlling and regulating an internal combustion engine
FR2967794B1 (en) * 2010-11-19 2014-07-11 Peugeot Citroen Automobiles Sa PRESSURE REGULATOR AND FUEL SUPPLY DEVICE HAVING SUCH A REGULATOR
JP2013092071A (en) * 2011-10-24 2013-05-16 Toyota Motor Corp Control device for internal combustion engine and internal combustion engine
CN102518523B (en) * 2011-12-29 2014-07-16 北京经纬恒润科技有限公司 Control device for oil injection of high pressure common rail diesel engine
JP5874622B2 (en) * 2012-12-12 2016-03-02 株式会社デンソー Fuel injection control device for internal combustion engine
CN109113882B (en) * 2018-08-27 2020-08-18 车行天下网络科技股份有限公司 Intelligent data optimization device for engine sensor of diesel vehicle
GB2578577A (en) * 2018-10-30 2020-05-20 Perkins Engines Co Ltd Fuel system control

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02191865A (en) * 1989-01-20 1990-07-27 Nippondenso Co Ltd Fuel injection device
US5213084A (en) * 1990-06-20 1993-05-25 Robert Bosch Gmbh Fuel injection system for internal combustion engines
JPH09209870A (en) * 1996-02-05 1997-08-12 Zexel Corp Accumulator fuel injector
US5671715A (en) * 1995-04-27 1997-09-30 Nipon Soken, Inc. Fuel injection device
JPH1054318A (en) * 1996-08-09 1998-02-24 Denso Corp Accumulator type fuel supply device for engine
US5727525A (en) * 1995-10-03 1998-03-17 Nippon Soken, Inc. Accumulator fuel injection system
EP1030047A2 (en) * 1999-02-15 2000-08-23 Toyota Jidosha Kabushiki Kaisha Fuel pressure control device and method for high pressure fuel injection system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02191865A (en) * 1989-01-20 1990-07-27 Nippondenso Co Ltd Fuel injection device
US5213084A (en) * 1990-06-20 1993-05-25 Robert Bosch Gmbh Fuel injection system for internal combustion engines
US5671715A (en) * 1995-04-27 1997-09-30 Nipon Soken, Inc. Fuel injection device
US5727525A (en) * 1995-10-03 1998-03-17 Nippon Soken, Inc. Accumulator fuel injection system
JPH09209870A (en) * 1996-02-05 1997-08-12 Zexel Corp Accumulator fuel injector
JPH1054318A (en) * 1996-08-09 1998-02-24 Denso Corp Accumulator type fuel supply device for engine
EP1030047A2 (en) * 1999-02-15 2000-08-23 Toyota Jidosha Kabushiki Kaisha Fuel pressure control device and method for high pressure fuel injection system

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 478 (M - 1036) 18 October 1990 (1990-10-18) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 12 25 December 1997 (1997-12-25) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30) *

Also Published As

Publication number Publication date
ES2232336T3 (en) 2005-06-01
EP1030048A3 (en) 2002-03-27
JP2000240494A (en) 2000-09-05
DE60022233D1 (en) 2005-09-29
DE60022233T2 (en) 2006-03-09
EP1304470A2 (en) 2003-04-23
DE60016989T2 (en) 2005-06-09
DE60016989D1 (en) 2005-02-03
ES2243809T3 (en) 2005-12-01
EP1304471A2 (en) 2003-04-23
EP1030048A2 (en) 2000-08-23
EP1304470B1 (en) 2005-08-24
EP1030048B1 (en) 2004-12-29
JP4023020B2 (en) 2007-12-19
EP1304470A3 (en) 2004-05-19

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