EP1024274A3 - Accumulation-type fuel injection system and accumulation chamber pressure control method therefor - Google Patents

Accumulation-type fuel injection system and accumulation chamber pressure control method therefor Download PDF

Info

Publication number
EP1024274A3
EP1024274A3 EP00100432A EP00100432A EP1024274A3 EP 1024274 A3 EP1024274 A3 EP 1024274A3 EP 00100432 A EP00100432 A EP 00100432A EP 00100432 A EP00100432 A EP 00100432A EP 1024274 A3 EP1024274 A3 EP 1024274A3
Authority
EP
European Patent Office
Prior art keywords
accumulation
control method
fuel injection
pressure control
injection system
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
EP00100432A
Other languages
German (de)
French (fr)
Other versions
EP1024274B1 (en
EP1024274A2 (en
Inventor
Ken c/o Denso Corporation Uchiyama
Nobumasa c/o Denso Corporation Isogai
Hiroshi c/o Denso Corporation Haraguchi
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.)
Denso Corp
Original Assignee
Denso 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 Denso Corp filed Critical Denso Corp
Publication of EP1024274A2 publication Critical patent/EP1024274A2/en
Publication of EP1024274A3 publication Critical patent/EP1024274A3/en
Application granted granted Critical
Publication of EP1024274B1 publication Critical patent/EP1024274B1/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
    • F02D41/30—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
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil temperature
    • 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
    • F02D2250/31—Control of the fuel pressure
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/21—Fuel-injection apparatus with piezoelectric or magnetostrictive elements

Abstract

A spill control valve such as an electromagnetic valve (1a) of an injector (1) is ineffectively driven to open for a period (Tq) shorter than a delay period (tm) by which a nozzle needle (37) opens, when a pressure reducing condition to reduce fuel pressure in a common rail (3) is satisfied. A temperature of an injector driving circuit (79) in an ECU (7) is estimated from a coolant temperature detected by a coolant temperature sensor (71). A cycle period of an ineffective driving is determined from the estimated temperature so that a thermal load applied to the injector driving circuit does not exceed a limit.
EP00100432A 1999-01-28 2000-01-10 Accumulation-type fuel injection system and accumulation chamber pressure control method therefor Expired - Lifetime EP1024274B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1992499 1999-01-28
JP1992499 1999-01-28
JP20447099A JP3458776B2 (en) 1999-01-28 1999-07-19 Accumulator type fuel injection device and accumulator interior pressure control method
JP20447099 1999-07-19

Publications (3)

Publication Number Publication Date
EP1024274A2 EP1024274A2 (en) 2000-08-02
EP1024274A3 true EP1024274A3 (en) 2002-03-27
EP1024274B1 EP1024274B1 (en) 2004-03-24

Family

ID=26356808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100432A Expired - Lifetime EP1024274B1 (en) 1999-01-28 2000-01-10 Accumulation-type fuel injection system and accumulation chamber pressure control method therefor

Country Status (3)

Country Link
EP (1) EP1024274B1 (en)
JP (1) JP3458776B2 (en)
DE (1) DE60009180T2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6877487B2 (en) 2000-10-18 2005-04-12 Robert Bosch Gmbh Method, device and computer program for operating an internal combustion engine, and internal combustion engine
JP3931120B2 (en) 2002-07-10 2007-06-13 ボッシュ株式会社 Accumulated fuel injection system
JP4144375B2 (en) * 2002-09-11 2008-09-03 株式会社デンソー Accumulated fuel injection system
JP2006132517A (en) 2004-10-07 2006-05-25 Toyota Motor Corp Fuel injection apparatus of internal combustion engine and control device of high-pressure fuel system of internal combustion engine
DE102005012997B4 (en) * 2005-03-21 2010-09-09 Continental Automotive Gmbh Pressure reduction method for an injection system and corresponding injection systems
DE102005012998B3 (en) * 2005-03-21 2006-09-21 Siemens Ag Common rail injection system for e.g. diesel engine, has injectors comprising injection nozzles for injecting fuel into combustion chamber, where one of injectors or part of injectors serves for pressure reduction in high pressure area
US7240660B1 (en) 2006-09-21 2007-07-10 Ford Global Technologies, Llc Heat management for control unit
US8206204B2 (en) 2006-09-21 2012-06-26 Ford Global Technologies, Llc Control unit heat management
JP4656436B2 (en) * 2006-10-02 2011-03-23 株式会社デンソー Injection amount control device and injection amount control method
JP4755608B2 (en) * 2007-01-23 2011-08-24 ボッシュ株式会社 Fuel injection control device
JP4826540B2 (en) * 2007-04-27 2011-11-30 トヨタ自動車株式会社 Fuel injection system for compression ignition internal combustion engine
JP4926032B2 (en) * 2007-12-25 2012-05-09 日立オートモティブシステムズ株式会社 Control device for internal combustion engine
JP5126151B2 (en) * 2009-04-17 2013-01-23 日産自動車株式会社 Engine fuel injection control device
EP2333283A1 (en) 2009-12-04 2011-06-15 Perkins Engines Company Limited A method and system for controlling pressure in a pressure accumulator
DE102010039046A1 (en) * 2010-08-09 2012-02-09 Robert Bosch Gmbh Injector
DE102010062883A1 (en) * 2010-09-14 2012-04-26 Robert Bosch Gmbh Method for operating an injection system
JP5648644B2 (en) * 2012-03-02 2015-01-07 株式会社デンソー Electronic control unit
CN103726966B (en) * 2013-12-16 2016-04-13 中国计量学院 Automobile with compressed natural gas spray rail performance testing device and test method thereof
JP6688572B2 (en) * 2015-07-27 2020-04-28 ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ DPF regeneration control method and DPF regeneration control device
CN114810442A (en) * 2022-04-11 2022-07-29 哈尔滨工程大学 Fuel injector cooling device and method based on constant volume bomb high-temperature experiment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090381A (en) * 1989-11-17 1992-02-25 Hitachi, Ltd. Method of and apparatus for controlling an idling control valve of an internal combustion engine
US5148987A (en) * 1990-07-05 1992-09-22 Yamaha Hatsudoki Kabushiki Kaisha High pressure fuel injection device for engine
US5711274A (en) * 1994-12-20 1998-01-27 Robert Bosch Gmbh System and method for reducing the fuel pressure in a fuel injection system
DE19857260A1 (en) * 1997-12-11 1999-06-17 Denso Corp Collector fuel injection system for motor vehicle diesel engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090381A (en) * 1989-11-17 1992-02-25 Hitachi, Ltd. Method of and apparatus for controlling an idling control valve of an internal combustion engine
US5148987A (en) * 1990-07-05 1992-09-22 Yamaha Hatsudoki Kabushiki Kaisha High pressure fuel injection device for engine
US5711274A (en) * 1994-12-20 1998-01-27 Robert Bosch Gmbh System and method for reducing the fuel pressure in a fuel injection system
DE19857260A1 (en) * 1997-12-11 1999-06-17 Denso Corp Collector fuel injection system for motor vehicle diesel engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HOFFMANN K-H ET AL: "DAS COMMON-RAIL-EINSPRITZSYSTEM-EIN NEUES KAPITEL DER DIESELEINSPRITZTECHNIK", MTZ MOTORTECHNISCHE ZEITSCHRIFT, FRANCKH'SCHE VERLAGSHANDLUNG,ABTEILUNG TECHNIK. STUTTGART, DE, vol. 58, no. 10, 1 October 1997 (1997-10-01), pages 572 - 582, XP000720118, ISSN: 0024-8525 *

Also Published As

Publication number Publication date
JP3458776B2 (en) 2003-10-20
JP2000282998A (en) 2000-10-10
EP1024274B1 (en) 2004-03-24
DE60009180T2 (en) 2005-01-20
DE60009180D1 (en) 2004-04-29
EP1024274A2 (en) 2000-08-02

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