EP3061956A3 - Control device and control method of fuel pressure of engine - Google Patents

Control device and control method of fuel pressure of engine Download PDF

Info

Publication number
EP3061956A3
EP3061956A3 EP16156711.0A EP16156711A EP3061956A3 EP 3061956 A3 EP3061956 A3 EP 3061956A3 EP 16156711 A EP16156711 A EP 16156711A EP 3061956 A3 EP3061956 A3 EP 3061956A3
Authority
EP
European Patent Office
Prior art keywords
fuel pressure
control
fuel
engine
control device
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
EP16156711.0A
Other languages
German (de)
French (fr)
Other versions
EP3061956B1 (en
EP3061956A2 (en
Inventor
Hiroyuki Mizuno
Tomohiro Shinagawa
Takahisa KOISHIKAWA
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 EP3061956A2 publication Critical patent/EP3061956A2/en
Publication of EP3061956A3 publication Critical patent/EP3061956A3/en
Application granted granted Critical
Publication of EP3061956B1 publication Critical patent/EP3061956B1/en
Active 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
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1412—Introducing closed-loop corrections characterised by the control or regulation method using a predictive controller
    • 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
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically

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)
  • Fuel-Injection Apparatus (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A control device of an engine, the control device includes an ECU (27) that is configured to: control a fuel discharge amount of a fuel pump (14) such that an actual fuel pressure (PR) of a fuel to be supplied to an injector (24) is equal to a target fuel pressure (PRRQ); perform a predictive control when the ECU predicts that an engine load would decrease, the predictive control is a control to decrease the fuel discharge amount to be smaller than a value corresponds to a current value of the target fuel pressure; and control the fuel discharge amount to maintain the actual fuel pressure at a lower limit guard value (PRGD) when the actual fuel pressure is equal to or lower than the lower limit guard value and is lower than the target fuel pressure, during the execution of the predictive control.
EP16156711.0A 2015-02-24 2016-02-22 Control device and control method of fuel pressure of engine Active EP3061956B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015034410A JP6229679B2 (en) 2015-02-24 2015-02-24 Engine fuel pressure control device

Publications (3)

Publication Number Publication Date
EP3061956A2 EP3061956A2 (en) 2016-08-31
EP3061956A3 true EP3061956A3 (en) 2016-10-26
EP3061956B1 EP3061956B1 (en) 2019-04-24

Family

ID=55661071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16156711.0A Active EP3061956B1 (en) 2015-02-24 2016-02-22 Control device and control method of fuel pressure of engine

Country Status (2)

Country Link
EP (1) EP3061956B1 (en)
JP (1) JP6229679B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6502459B1 (en) * 2017-10-31 2019-04-17 本田技研工業株式会社 Fuel injection control device for internal combustion engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017485A1 (en) * 2005-07-19 2007-01-25 Denso Corporation Pressure accumulation fuel injection controller
JP2010019088A (en) * 2008-07-08 2010-01-28 Denso Corp Idling stop control device and fuel injection system using same
DE102009017472A1 (en) * 2009-04-15 2010-10-21 Bayerische Motoren Werke Aktiengesellschaft Method for lowering the fuel pressure in a non-return fuel supply system
EP2336531A1 (en) * 2009-12-18 2011-06-22 Bosch Corporation Accumulator fuel injection system controller and control method and accumulator fuel injection system
DE102013201355A1 (en) * 2013-01-29 2014-07-31 Robert Bosch Gmbh Controlling the fuel pressure in an injection system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3453970B2 (en) * 1995-12-12 2003-10-06 株式会社デンソー Fuel supply device for internal combustion engine
JP4089640B2 (en) * 2004-03-02 2008-05-28 トヨタ自動車株式会社 Control device for internal combustion engine
JP4900287B2 (en) * 2008-03-05 2012-03-21 株式会社デンソー Fuel supply control device and fuel supply system using the same
JP2013060091A (en) * 2011-09-13 2013-04-04 Hitachi Automotive Systems Ltd Control device of vehicle
JP5811128B2 (en) * 2013-03-29 2015-11-11 トヨタ自動車株式会社 Control device for internal combustion engine
JP6158580B2 (en) * 2013-04-26 2017-07-05 ヤンマー株式会社 engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070017485A1 (en) * 2005-07-19 2007-01-25 Denso Corporation Pressure accumulation fuel injection controller
JP2010019088A (en) * 2008-07-08 2010-01-28 Denso Corp Idling stop control device and fuel injection system using same
DE102009017472A1 (en) * 2009-04-15 2010-10-21 Bayerische Motoren Werke Aktiengesellschaft Method for lowering the fuel pressure in a non-return fuel supply system
EP2336531A1 (en) * 2009-12-18 2011-06-22 Bosch Corporation Accumulator fuel injection system controller and control method and accumulator fuel injection system
DE102013201355A1 (en) * 2013-01-29 2014-07-31 Robert Bosch Gmbh Controlling the fuel pressure in an injection system

Also Published As

Publication number Publication date
EP3061956B1 (en) 2019-04-24
JP2016156317A (en) 2016-09-01
EP3061956A2 (en) 2016-08-31
JP6229679B2 (en) 2017-11-15

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