JP2007046482A - 筒内噴射式の内燃機関の制御装置 - Google Patents
筒内噴射式の内燃機関の制御装置 Download PDFInfo
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- JP2007046482A JP2007046482A JP2005229039A JP2005229039A JP2007046482A JP 2007046482 A JP2007046482 A JP 2007046482A JP 2005229039 A JP2005229039 A JP 2005229039A JP 2005229039 A JP2005229039 A JP 2005229039A JP 2007046482 A JP2007046482 A JP 2007046482A
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- fuel
- fuel pressure
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- injection
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- 238000002347 injection Methods 0.000 title claims abstract description 125
- 239000007924 injection Substances 0.000 title claims abstract description 125
- 238000002485 combustion reaction Methods 0.000 title claims description 84
- 239000000446 fuel Substances 0.000 claims abstract description 339
- 239000000498 cooling water Substances 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000243 solution Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 32
- 238000000889 atomisation Methods 0.000 description 14
- 239000002828 fuel tank Substances 0.000 description 10
- 230000006866 deterioration Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
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
- F02M63/02—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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- 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
- 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
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/003—Measuring variation of fuel pressure in high pressure line
-
- 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
- F02D2250/02—Fuel evaporation in fuel rails, e.g. in common rails
-
- 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)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
【解決手段】 ECU30は、燃圧センサ29の検出燃圧を目標燃圧に一致させるように高圧ポンプ14の吐出量(燃圧制御弁22の通電時期)をフィードバック制御する。その際、自動変速機のシフトレバーの操作位置等に基づいてエンジン停止直前であるか否かを判定し、エンジン停止直前でなければ、エンジン運転状態に応じて目標燃圧を算出する。一方、エンジン停止直前であると判定されたときには、目標燃圧を通常よりも低い燃圧に設定する。これにより、エンジン停止直前に高圧燃料供給系内の燃圧を従来よりも低下させてからエンジンを停止させることができるので、エンジン停止中の燃圧を低下させることができて、エンジン停止中の燃料噴射弁28からの燃料漏れを低減することができる。
【選択図】 図1
Description
本実施例2では、図12に示す目標燃圧演算ルーチンを実行することで、エンジン停止直前であると判定されたとき(エンジン停止予測時)に、冷却水温に応じてエンジン停止予測時の目標燃圧を設定するようにしている。
Claims (6)
- 高圧ポンプにより燃料を高圧にして燃料噴射弁に供給し、この燃料噴射弁から燃料を気筒内に直接噴射する筒内噴射式の内燃機関の制御装置において、
前記燃料噴射弁に供給される燃料の圧力(以下「燃圧」という)を検出する燃圧検出手段と、
内燃機関の運転状態に応じて目標燃圧を設定する目標燃圧設定手段と、
前記燃圧検出手段の検出燃圧を前記目標燃圧に一致させるように前記高圧ポンプの吐出量を制御する燃圧制御手段と、
内燃機関が停止される直前であるか否かを判定する停止予測手段とを備え、
前記目標燃圧設定手段は、前記停止予測手段により内燃機関の停止直前であると判定されたとき(以下「停止予測時」という)に前記目標燃圧を通常よりも低圧側に設定することを特徴とする筒内噴射式の内燃機関の制御装置。 - 内燃機関の冷却水温を検出する冷却水温検出手段を備え、
前記目標燃圧設定手段は、前記冷却水温検出手段で検出した冷却水温が低くなるほど前記停止予測時の目標燃圧を高くすることを特徴とする請求項1に記載の筒内噴射式の内燃機関の制御装置。 - 前記停止予測手段は、アイドル運転指令、シフトレバーの操作位置、車速のうちの少なくとも1つに基づいて内燃機関が停止される直前であるか否かを判定することを特徴とする請求項1又は2に記載の筒内噴射式の内燃機関の制御装置。
- 各気筒の1サイクル中に燃料を1回噴射する1回噴射モードと、各気筒の1サイクル中に燃料を複数回に分割して噴射する分割噴射モードとの間で噴射モードを切り換える噴射モード切換手段を備え、
前記噴射モード切換手段は、前記停止予測時に前記噴射モードを前記分割噴射モードに設定することを特徴とする請求項1乃至3のいずれかに記載の筒内噴射式の内燃機関の制御装置。 - 各気筒の吸気行程で気筒内に燃料を噴射して均質燃焼させる均質燃焼モードと、各気筒の圧縮行程で気筒内に燃料を噴射して成層燃焼させる成層燃焼モードとの間で燃焼モードを切り換える燃焼モード切換手段を備え、
前記燃焼モード切換手段は、前記停止予測時に前記燃焼モードを前記均質燃焼モードに切り換えることを特徴とする請求項1乃至4のいずれかに記載の筒内噴射式の内燃機関の制御装置。 - 前記停止予測時にイグニッションスイッチのオフ後にも前記検出燃圧が前記停止予測時の目標燃圧に低下するまで内燃機関の制御系に電力を供給して燃料噴射と点火を継続するメインリレー制御手段を備えていることを特徴とする請求項1乃至5のいずれかに記載の筒内噴射式の内燃機関の制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005229039A JP4407827B2 (ja) | 2005-08-08 | 2005-08-08 | 筒内噴射式の内燃機関の制御装置 |
US11/492,926 US7565898B2 (en) | 2005-08-08 | 2006-07-26 | Controller for direct injection engine and controlling method |
DE102006000396A DE102006000396B4 (de) | 2005-08-08 | 2006-08-07 | Steuervorrichtung und Steuerverfahren für eine Direkteinspritzkraftmaschine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005229039A JP4407827B2 (ja) | 2005-08-08 | 2005-08-08 | 筒内噴射式の内燃機関の制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007046482A true JP2007046482A (ja) | 2007-02-22 |
JP4407827B2 JP4407827B2 (ja) | 2010-02-03 |
Family
ID=37697459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005229039A Active JP4407827B2 (ja) | 2005-08-08 | 2005-08-08 | 筒内噴射式の内燃機関の制御装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7565898B2 (ja) |
JP (1) | JP4407827B2 (ja) |
DE (1) | DE102006000396B4 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010065557A (ja) * | 2008-09-09 | 2010-03-25 | Nissan Motor Co Ltd | 直噴式エンジンの燃料圧力制御装置 |
JP2010106732A (ja) * | 2008-10-29 | 2010-05-13 | Denso Corp | 筒内噴射式の内燃機関の制御装置 |
US20140121943A1 (en) * | 2012-10-31 | 2014-05-01 | Hyundai Motor Company | Control system and control method of gasoline direct injection engine |
JP2015229967A (ja) * | 2014-06-05 | 2015-12-21 | トヨタ自動車株式会社 | 燃料圧力制御装置 |
WO2020121981A1 (ja) | 2018-12-10 | 2020-06-18 | ダイキン工業株式会社 | テトラフルオロエチレン重合体、エアフィルタ濾材、フィルタパック、および、エアフィルタユニット |
Families Citing this family (12)
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JP4538851B2 (ja) * | 2006-02-15 | 2010-09-08 | 株式会社デンソー | 筒内噴射式の内燃機関の燃圧制御装置 |
US7762234B2 (en) * | 2008-04-22 | 2010-07-27 | Ford Global Technologies, Llc | Fuel delivery system diagnostics after shut-down |
DE102009017472B4 (de) * | 2009-04-15 | 2021-08-26 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Absenken des Kraftstoffdrucks in einem rücklauffreien Kraftstoffversorgungssystem |
JP5863017B2 (ja) * | 2011-10-25 | 2016-02-16 | 三菱自動車工業株式会社 | 内燃機関の燃料噴射装置 |
JP2013113145A (ja) * | 2011-11-25 | 2013-06-10 | Toyota Motor Corp | 内燃機関の制御装置 |
JP5836234B2 (ja) * | 2012-09-20 | 2015-12-24 | 本田技研工業株式会社 | ランマの転倒検出装置 |
KR101416366B1 (ko) * | 2012-10-05 | 2014-07-08 | 기아자동차 주식회사 | 가솔린 직분사 엔진의 연료 제어 시스템 및 방법 |
DE102013201355A1 (de) * | 2013-01-29 | 2014-07-31 | Robert Bosch Gmbh | Steuern des Treibstoffdrucks in einer Einspritzanlage |
FR3013395B1 (fr) * | 2013-11-19 | 2015-12-11 | Renault Sas | Procede et systeme d'alimentation en gazole d'un vehicule automobile. |
US20150167621A1 (en) * | 2013-12-17 | 2015-06-18 | Hyundai Motor Company | Method of controlling startup of vehicle |
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2005
- 2005-08-08 JP JP2005229039A patent/JP4407827B2/ja active Active
-
2006
- 2006-07-26 US US11/492,926 patent/US7565898B2/en active Active
- 2006-08-07 DE DE102006000396A patent/DE102006000396B4/de active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010065557A (ja) * | 2008-09-09 | 2010-03-25 | Nissan Motor Co Ltd | 直噴式エンジンの燃料圧力制御装置 |
JP2010106732A (ja) * | 2008-10-29 | 2010-05-13 | Denso Corp | 筒内噴射式の内燃機関の制御装置 |
US20140121943A1 (en) * | 2012-10-31 | 2014-05-01 | Hyundai Motor Company | Control system and control method of gasoline direct injection engine |
US9347392B2 (en) * | 2012-10-31 | 2016-05-24 | Hyundai Motor Company | Control system and control method of gasoline direct injection engine |
JP2015229967A (ja) * | 2014-06-05 | 2015-12-21 | トヨタ自動車株式会社 | 燃料圧力制御装置 |
WO2020121981A1 (ja) | 2018-12-10 | 2020-06-18 | ダイキン工業株式会社 | テトラフルオロエチレン重合体、エアフィルタ濾材、フィルタパック、および、エアフィルタユニット |
Also Published As
Publication number | Publication date |
---|---|
DE102006000396B4 (de) | 2012-07-19 |
US7565898B2 (en) | 2009-07-28 |
US20070028897A1 (en) | 2007-02-08 |
DE102006000396A1 (de) | 2007-02-22 |
JP4407827B2 (ja) | 2010-02-03 |
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