DE102006000459A1 - Fuel injection control device for e.g. diesel engine in vehicle, has air mixture determination unit to determine mixing of air with fuel based on condition, in which detected fuel pressure is lower than desired fuel pressure - Google Patents

Fuel injection control device for e.g. diesel engine in vehicle, has air mixture determination unit to determine mixing of air with fuel based on condition, in which detected fuel pressure is lower than desired fuel pressure Download PDF

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Publication number
DE102006000459A1
DE102006000459A1 DE102006000459A DE102006000459A DE102006000459A1 DE 102006000459 A1 DE102006000459 A1 DE 102006000459A1 DE 102006000459 A DE102006000459 A DE 102006000459A DE 102006000459 A DE102006000459 A DE 102006000459A DE 102006000459 A1 DE102006000459 A1 DE 102006000459A1
Authority
DE
Germany
Prior art keywords
fuel
fuel pressure
air
pressure
determination unit
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
DE102006000459A
Other languages
German (de)
Other versions
DE102006000459B4 (en
Inventor
Takayuki Saeki
Hiroki Takama
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
Priority claimed from JP2005267889A external-priority patent/JP4386016B2/en
Priority claimed from JP2005279183A external-priority patent/JP4475212B2/en
Application filed by Denso Corp filed Critical Denso Corp
Publication of DE102006000459A1 publication Critical patent/DE102006000459A1/en
Application granted granted Critical
Publication of DE102006000459B4 publication Critical patent/DE102006000459B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • 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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (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

The device has a pressure sensor (32), which detects the fuel pressure in a pressure accumulation chamber (12). A fuel pressure receiving mechanism collects the detection result of the sensor. A control mechanism operates a fuel pump (6) for regulating the detected fuel pressure to a desired fuel pressure. An air mixture determination unit determines the mixing of air with the fuel, based on a condition, in which the detected fuel pressure is lower than the desired fuel pressure.
DE102006000459.0A 2005-09-15 2006-09-14 Fuel injection control device Expired - Fee Related DE102006000459B4 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005-267889 2005-09-15
JP2005267889A JP4386016B2 (en) 2005-09-15 2005-09-15 Fuel injection control device
JP2005-279183 2005-09-27
JP2005279183A JP4475212B2 (en) 2005-09-27 2005-09-27 Fuel injection control device

Publications (2)

Publication Number Publication Date
DE102006000459A1 true DE102006000459A1 (en) 2007-05-16
DE102006000459B4 DE102006000459B4 (en) 2016-04-07

Family

ID=37982764

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102006000459.0A Expired - Fee Related DE102006000459B4 (en) 2005-09-15 2006-09-14 Fuel injection control device

Country Status (1)

Country Link
DE (1) DE102006000459B4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016104961B4 (en) 2015-03-27 2020-08-06 Subaru Corporation Engine control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3744290B2 (en) * 1999-01-28 2006-02-08 株式会社デンソー Control method of variable discharge high pressure pump
JP4158272B2 (en) * 1999-03-26 2008-10-01 トヨタ自動車株式会社 Abnormality judgment method of high-pressure fuel injection system
JP3829573B2 (en) * 2000-03-14 2006-10-04 いすゞ自動車株式会社 Common rail fuel injection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016104961B4 (en) 2015-03-27 2020-08-06 Subaru Corporation Engine control

Also Published As

Publication number Publication date
DE102006000459B4 (en) 2016-04-07

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
R018 Grant decision by examination section/examining division
R084 Declaration of willingness to licence
R020 Patent grant now final
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee