EP1031721A3 - Fuel pressure control device for high pressure fuel injection system - Google Patents

Fuel pressure control device for high pressure fuel injection system Download PDF

Info

Publication number
EP1031721A3
EP1031721A3 EP00102054A EP00102054A EP1031721A3 EP 1031721 A3 EP1031721 A3 EP 1031721A3 EP 00102054 A EP00102054 A EP 00102054A EP 00102054 A EP00102054 A EP 00102054A EP 1031721 A3 EP1031721 A3 EP 1031721A3
Authority
EP
European Patent Office
Prior art keywords
fuel injection
fuel
common rail
pressure
injection valve
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
EP00102054A
Other languages
German (de)
French (fr)
Other versions
EP1031721B1 (en
EP1031721A2 (en
Inventor
Tatsumasa c/o Toyota Jidosha K.K. Sugiyama
Yuuichirou c/o Toyota Jidosha K.K. 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 EP1031721A2 publication Critical patent/EP1031721A2/en
Publication of EP1031721A3 publication Critical patent/EP1031721A3/en
Application granted granted Critical
Publication of EP1031721B1 publication Critical patent/EP1031721B1/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

In a fuel pressure control apparatus for a high-pressure fuel injection system provided with a common rail (15), a supply pump (13) for force-feeding fuel to the common rail, and a fuel injection valve (17) attached to each cylinder of a diesel engine (1) and connected at one end to the common rail (15), an attempt is made to securely reduce a surplus of fuel pressure making use of a limited period during which normal fuel injection is not carried out. In exclusively performing pressure-release of fuel in the common rail (15) by driving the fuel injection valve (17) within an invalid injection period, the fuel injection valve (17) is driven in a cycle that does not depend on an operational condition of the engine (1), while adjusting a timing for driving the fuel injection valve (17) in such a manner as to prevent interference with the normal fuel injection control.
EP20000102054 1999-02-24 2000-02-02 Fuel pressure control device for high pressure fuel injection system Expired - Lifetime EP1031721B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4619799 1999-02-24
JP04619799A JP4122615B2 (en) 1999-02-24 1999-02-24 Fuel pressure control system for high-pressure fuel injection system

Publications (3)

Publication Number Publication Date
EP1031721A2 EP1031721A2 (en) 2000-08-30
EP1031721A3 true EP1031721A3 (en) 2003-04-09
EP1031721B1 EP1031721B1 (en) 2005-01-12

Family

ID=12740363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000102054 Expired - Lifetime EP1031721B1 (en) 1999-02-24 2000-02-02 Fuel pressure control device for high pressure fuel injection system

Country Status (4)

Country Link
EP (1) EP1031721B1 (en)
JP (1) JP4122615B2 (en)
DE (1) DE60017299T2 (en)
ES (1) ES2232335T3 (en)

Families Citing this family (11)

* 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
FR2833654B1 (en) * 2001-12-17 2004-02-20 Renault INJECTOR CONTROL METHOD
JP2003343331A (en) * 2002-05-24 2003-12-03 Denso Corp Injection ratio controller for internal combustion engine
FR2915774B1 (en) * 2007-05-04 2009-07-17 Peugeot Citroen Automobiles Sa LOW PRESSURE INJECTION SYSTEM
JP4857372B2 (en) * 2009-08-31 2012-01-18 日立オートモティブシステムズ株式会社 Fuel pressure control device
US8950379B2 (en) * 2012-08-28 2015-02-10 GM Global Technology Operations LLC Measured fuel rail pressure adjustment systems and methods
CA2809539C (en) * 2013-03-15 2014-05-13 Westport Power Inc. Preventing fuel regulation failure
JP2014227929A (en) * 2013-05-23 2014-12-08 トヨタ自動車株式会社 Failure detection device of injector energization cutoff function
DE102013220336B4 (en) * 2013-10-09 2019-02-07 Continental Automotive Gmbh Method for mitigating the effects of excessive pressure in a common rail injection system
FR3012177A1 (en) * 2013-10-23 2015-04-24 Peugeot Citroen Automobiles Sa METHOD OF DISCHARGING A HIGH PRESSURE FUEL INJECTION RAIL FROM AN INTERNAL COMBUSTION ENGINE IN CASE OF AFTER-SALES INTERVENTION

Citations (5)

* 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
US5711274A (en) * 1994-12-20 1998-01-27 Robert Bosch Gmbh System and method for reducing the fuel pressure in a fuel injection system
EP0886058A2 (en) * 1997-06-19 1998-12-23 Toyota Jidosha Kabushiki Kaisha Fuel pressure control apparatus for fuel injection system of engine
DE19731102A1 (en) * 1997-07-19 1999-01-21 Bosch Gmbh Robert Fuel supply apparatus for IC engine in motor vehicle
EP0896144A2 (en) * 1997-08-04 1999-02-10 Toyota Jidosha Kabushiki Kaisha Fuel injection control apparatus for an accumulator type engine

Patent Citations (5)

* 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
US5711274A (en) * 1994-12-20 1998-01-27 Robert Bosch Gmbh System and method for reducing the fuel pressure in a fuel injection system
EP0886058A2 (en) * 1997-06-19 1998-12-23 Toyota Jidosha Kabushiki Kaisha Fuel pressure control apparatus for fuel injection system of engine
DE19731102A1 (en) * 1997-07-19 1999-01-21 Bosch Gmbh Robert Fuel supply apparatus for IC engine in motor vehicle
EP0896144A2 (en) * 1997-08-04 1999-02-10 Toyota Jidosha Kabushiki Kaisha Fuel injection control apparatus for an accumulator type engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 478 (M - 1036) 18 October 1990 (1990-10-18) *

Also Published As

Publication number Publication date
EP1031721B1 (en) 2005-01-12
JP2000248983A (en) 2000-09-12
JP4122615B2 (en) 2008-07-23
DE60017299T2 (en) 2005-06-02
DE60017299D1 (en) 2005-02-17
EP1031721A2 (en) 2000-08-30
ES2232335T3 (en) 2005-06-01

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