JP6504906B2 - 内燃機関の燃料噴射装置 - Google Patents
内燃機関の燃料噴射装置 Download PDFInfo
- Publication number
- JP6504906B2 JP6504906B2 JP2015095674A JP2015095674A JP6504906B2 JP 6504906 B2 JP6504906 B2 JP 6504906B2 JP 2015095674 A JP2015095674 A JP 2015095674A JP 2015095674 A JP2015095674 A JP 2015095674A JP 6504906 B2 JP6504906 B2 JP 6504906B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- fuel injection
- engine
- internal combustion
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims description 42
- 238000002347 injection Methods 0.000 title claims description 37
- 239000007924 injection Substances 0.000 title claims description 37
- 238000002485 combustion reaction Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 description 20
- 239000003990 capacitor Substances 0.000 description 13
- 239000007858 starting material Substances 0.000 description 10
- 230000007423 decrease Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 101000657037 Homo sapiens Radical S-adenosyl methionine domain-containing protein 2 Proteins 0.000 description 3
- 102100033749 Radical S-adenosyl methionine domain-containing protein 2 Human genes 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Classifications
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- 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
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- 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
- F02D2041/2003—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening
- F02D2041/2006—Output circuits, e.g. for controlling currents in command coils using means for creating a boost voltage, i.e. generation or use of a voltage higher than the battery voltage, e.g. to speed up injector opening by using a boost capacitor
-
- 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
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/503—Battery correction, i.e. corrections as a function of the state of the battery, its output or its type
-
- 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
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/02—Battery voltage drop at start, e.g. drops causing ECU reset
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Fuel-Injection Apparatus (AREA)
Description
図1は本発明の一実施形態にかかる内燃機関(以下「エンジン」という)1及びその燃料噴射装置を示しており、4気筒のエンジン1は各気筒に対応して4つの燃料噴射弁2を備えている。燃料噴射弁2は、エンジン1の燃焼室内に直接燃料を噴射する。
降圧回路14は、昇圧電圧VUを降圧して、安定化電圧VSTBと等しい降圧電圧VDを出力する回路であり、コンデンサC12、コイルL12、ダイオードD12、及びFETQ12を備えている。降圧回路14の出力は抵抗分割回路16を介してCPU11に接続されており、CPU11は降圧電圧VDに応じたオンオフ切換信号SSW2をFETQ12のゲートに供給する。CPU11は、降圧電圧VDが設定電圧VDX(例えば6.5V)と一致するようにオンオフ切換信号SSW2のデューティ比DTY2を制御する。
2 燃料噴射弁
6 バッテリ
10 昇圧回路
11 CPU(制御演算ユニット、放電回路)
13 電源回路
14 降圧回路(放電回路)
Claims (2)
- 内燃機関の燃焼室内に直接燃料を噴射する燃料噴射弁と、該燃料噴射弁の作動を制御する制御演算ユニットと、バッテリと、該バッテリに接続され、バッテリ出力電圧を昇圧して昇圧電圧を出力する昇圧回路とを備える内燃機関の燃料噴射装置において、
前記昇圧回路の出力側に接続された放電回路であって、前記制御演算ユニットの電源電圧の供給をオンオフするためのイグニッションスイッチがオフされたときに、前記昇圧回路に残留する電荷を放電させる放電回路を備え、
前記放電回路は、前記昇圧電圧を降圧して降圧電圧を出力する降圧回路及び前記制御演算ユニットを含む回路によって構成され、
前記降圧電圧が前記制御演算ユニットの電源入力端子に供給され、
前記制御演算ユニットは、前記機関の低温始動時に前記降圧回路を作動させることを特徴とする内燃機関の燃料噴射装置。 - 前記制御演算ユニットは、前記機関を一時的に停止させるアイドリングストップが行われている状態から前記機関を再始動する際に前記降圧回路を作動させることを特徴とする請求項1に記載の内燃機関の燃料噴射装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015095674A JP6504906B2 (ja) | 2015-05-08 | 2015-05-08 | 内燃機関の燃料噴射装置 |
US15/074,595 US10145324B2 (en) | 2015-05-08 | 2016-03-18 | Fuel injection device of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015095674A JP6504906B2 (ja) | 2015-05-08 | 2015-05-08 | 内燃機関の燃料噴射装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016211425A JP2016211425A (ja) | 2016-12-15 |
JP6504906B2 true JP6504906B2 (ja) | 2019-04-24 |
Family
ID=57221898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015095674A Expired - Fee Related JP6504906B2 (ja) | 2015-05-08 | 2015-05-08 | 内燃機関の燃料噴射装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US10145324B2 (ja) |
JP (1) | JP6504906B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020080029A1 (ja) * | 2018-10-19 | 2020-04-23 | 日立オートモティブシステムズ株式会社 | 電子制御装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3521524B2 (ja) * | 1995-02-17 | 2004-04-19 | 株式会社デンソー | 内燃機関の燃料噴射制御装置 |
GB2357641B (en) * | 1999-12-20 | 2002-02-20 | Motorola Ltd | DC-DC Converter and energy management system |
DE10119985A1 (de) * | 2001-04-24 | 2002-10-31 | Bosch Gmbh Robert | Vorrichtung zur Energieeinspeisung in ein Mehrspannungsbordnetz eines Kraftfahrzeugs |
JP4449940B2 (ja) * | 2006-05-16 | 2010-04-14 | トヨタ自動車株式会社 | 車両用二電源システム |
JP2008110700A (ja) * | 2006-10-31 | 2008-05-15 | Toyota Motor Corp | ハイブリッド車両の電源システム |
JP5105049B2 (ja) * | 2007-01-31 | 2012-12-19 | 株式会社ジェイテクト | 車両用駆動制御装置 |
JP2008279901A (ja) * | 2007-05-10 | 2008-11-20 | Auto Network Gijutsu Kenkyusho:Kk | 車両用電源供給システム |
JP4655124B2 (ja) * | 2008-08-25 | 2011-03-23 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP5845827B2 (ja) * | 2011-11-07 | 2016-01-20 | トヨタ自動車株式会社 | ハイブリッド車両 |
JP5857219B2 (ja) * | 2011-11-24 | 2016-02-10 | パナソニックIpマネジメント株式会社 | Led駆動装置、照明装置、および照明器具 |
JP5889129B2 (ja) | 2012-06-29 | 2016-03-22 | 本田技研工業株式会社 | 内燃機関の燃料噴射装置 |
JP5742797B2 (ja) * | 2012-07-18 | 2015-07-01 | 株式会社デンソー | 燃料噴射制御装置 |
JP5996386B2 (ja) * | 2012-11-15 | 2016-09-21 | 新電元工業株式会社 | 充放電制御回路、車両用電源装置及び故障判定方法 |
JP6149872B2 (ja) * | 2015-01-16 | 2017-06-21 | トヨタ自動車株式会社 | 蓄電システム |
-
2015
- 2015-05-08 JP JP2015095674A patent/JP6504906B2/ja not_active Expired - Fee Related
-
2016
- 2016-03-18 US US15/074,595 patent/US10145324B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20160326977A1 (en) | 2016-11-10 |
JP2016211425A (ja) | 2016-12-15 |
US10145324B2 (en) | 2018-12-04 |
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