JP6975096B2 - 燃料噴射制御装置 - Google Patents
燃料噴射制御装置 Download PDFInfo
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- JP6975096B2 JP6975096B2 JP2018092416A JP2018092416A JP6975096B2 JP 6975096 B2 JP6975096 B2 JP 6975096B2 JP 2018092416 A JP2018092416 A JP 2018092416A JP 2018092416 A JP2018092416 A JP 2018092416A JP 6975096 B2 JP6975096 B2 JP 6975096B2
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
-
- 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
- F02D41/1402—Adaptive control
-
- 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
- F02D41/008—Controlling each cylinder individually
- F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
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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
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
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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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
- F02D41/247—Behaviour for small quantities
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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
- F02D41/02—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
- F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- 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
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- 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
- F02D2200/0618—Actual fuel injection timing or delay, e.g. determined from fuel pressure drop
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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
- 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
- F02D2200/063—Lift of the valve needle
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- 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)
Description
本発明の他の態様によると、前記内燃機関は複数の気筒を備え、前記状態判断部は、一の気筒についての前記閉弁判定期間が他の気筒における燃料噴射の開始タイミングと重ならないように、各気筒についての前記閉弁判定期間を設定するよう構成されている。
本発明の他の態様によると、前記状態判断部は、前記閉弁判定期間の前記所定の時間長さを、前記多段噴射の噴射段数及び前記内燃機関の回転数に応じて定めるよう構成されている。
本発明の他の態様によると、前記閉弁判定期間の前記所定の時間長さは、前記内燃機関の回転数の減少に対して単調に増加し、及び又は、噴射段数の減少に対して単調に増加するように設定されている。
本発明の他の態様によると、予め定められた、少なくとも前記内燃機関の回転数に応じた前記所定の時間長さを示す判定時間マップを記憶する記憶装置を備え、前記状態判断部は、少なくとも前記多段噴射の噴射段数の設定に基づき、前記判定時間マップを参照して前記所定の時間長さを定めるよう構成されている。
図1は、本発明の一実施形態に係る燃料噴射制御装置の構成を示す図である。
この燃料噴射制御装置100は、例えば内燃機関102を用いる車両(不図示)に搭載される。燃料噴射制御装置100は、内燃機関102の複数(例えばn個)の気筒(不図示)にそれぞれ設けられた燃料噴射弁104−1、104−2、…、104−nにより、各気筒における燃焼サイクル毎の燃料噴射期間に当該気筒へ複数回の燃料噴射を行う多段噴射動作を制御する。以下、燃焼サイクル毎の燃料噴射期間を、単に燃料噴射期間と称し、燃料噴射期間内における複数回の燃料噴射のそれぞれの噴射期間を、個別噴射期間と称するものとする。また、燃料噴射弁104−1、104−2、…、1041−nを総称するときは、燃料噴射弁104という。
Claims (5)
- 内燃機関の気筒に設けられた燃料噴射弁により、前記気筒への燃料噴射期間に前記気筒へ複数回の燃料噴射を行う多段噴射の動作を制御する燃料噴射制御装置であって、
前記燃料噴射弁への通電をオンにして前記燃料噴射弁を開弁し、当該通電をオフにして前記燃料噴射弁を閉弁して、前記燃料噴射弁の開閉を制御する通電制御部と、
前記燃料噴射弁の端子間電圧を所定の時間間隔で取得する端子間電圧取得部と、
前記取得した前記端子間電圧に基づいて、前記燃料噴射弁の開閉動作の状態を判定する状態判断部と、
を備え、
前記状態判断部は、
前記燃料噴射期間における前記複数回の燃料噴射のそれぞれについて、前記燃料噴射弁への通電をオフにした後の、前記多段噴射の噴射段数に応じて定めた所定の時間長さの期間を、閉弁判定期間として設定し、
前記閉弁判定期間に取得した前記端子間電圧の変化に、前記燃料噴射弁の弁体移動に起因して発生する逆起電力に伴う電圧変化が現れたか否かを判断し、前記電圧変化が現れたときは、前記燃料噴射弁が全閉状態になったものと判断する、
よう構成されている、
燃料噴射制御装置。 - 前記内燃機関は複数の気筒を備え、
前記状態判断部は、一の気筒についての前記閉弁判定期間が他の気筒における燃料噴射の開始タイミングと重ならないように、各気筒についての前記閉弁判定期間を設定するよう構成されている、
請求項1に記載の燃料噴射制御装置。 - 前記状態判断部は、前記閉弁判定期間の前記所定の時間長さを、前記多段噴射の噴射段数及び前記内燃機関の回転数に応じて定めるよう構成されている、請求項1又は2に記載の燃料噴射制御装置。
- 前記閉弁判定期間の前記所定の時間長さは、前記内燃機関の回転数の減少に対して単調に増加し、及び又は、噴射段数の減少に対して単調に増加するように設定されている、
請求項3に記載の燃料噴射制御装置。 - 予め定められた、少なくとも前記内燃機関の回転数に応じた前記所定の時間長さを示す判定時間マップを記憶する記憶装置を備え、
前記状態判断部は、少なくとも前記多段噴射の噴射段数の設定に基づき、前記判定時間マップを参照して前記所定の時間長さを定めるよう構成されている、
請求項1ないし4のいずれか一項に記載の燃料噴射制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018092416A JP6975096B2 (ja) | 2018-05-11 | 2018-05-11 | 燃料噴射制御装置 |
US16/395,466 US20190345888A1 (en) | 2018-05-11 | 2019-04-26 | Fuel injection control device |
CN201910348098.2A CN110469417A (zh) | 2018-05-11 | 2019-04-28 | 燃料喷射控制装置 |
Applications Claiming Priority (1)
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JP2018092416A JP6975096B2 (ja) | 2018-05-11 | 2018-05-11 | 燃料噴射制御装置 |
Publications (2)
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JP2019196761A JP2019196761A (ja) | 2019-11-14 |
JP6975096B2 true JP6975096B2 (ja) | 2021-12-01 |
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JP2018092416A Active JP6975096B2 (ja) | 2018-05-11 | 2018-05-11 | 燃料噴射制御装置 |
Country Status (3)
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US (1) | US20190345888A1 (ja) |
JP (1) | JP6975096B2 (ja) |
CN (1) | CN110469417A (ja) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5790548B2 (ja) * | 2012-03-12 | 2015-10-07 | トヨタ自動車株式会社 | 内燃機関の燃料噴射制御装置 |
WO2015125551A2 (ja) * | 2014-02-18 | 2015-08-27 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁制御装置 |
JP6381970B2 (ja) * | 2014-05-30 | 2018-08-29 | 日立オートモティブシステムズ株式会社 | 燃料噴射装置の駆動装置 |
GB2530738A (en) * | 2014-09-30 | 2016-04-06 | Gm Global Tech Operations Inc | Method of controlling an injection dwell time between two injections of a fuel injector |
EP3258092B1 (en) * | 2015-02-09 | 2020-05-13 | Hitachi Automotive Systems, Ltd. | Control device for fuel injection valve |
EP3267018A4 (en) * | 2015-03-05 | 2018-12-05 | Hitachi Automotive Systems, Ltd. | Fuel injection valve, control device for fuel injection valve, and control method |
JP6445927B2 (ja) * | 2015-05-11 | 2018-12-26 | 本田技研工業株式会社 | 燃料噴射弁の制御装置 |
JP6512167B2 (ja) * | 2016-05-06 | 2019-05-15 | 株式会社デンソー | 燃料噴射制御装置 |
JP2017210891A (ja) * | 2016-05-24 | 2017-11-30 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 燃料噴射弁通電制御方法及びコモンレール式燃料噴射制御装置 |
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2018
- 2018-05-11 JP JP2018092416A patent/JP6975096B2/ja active Active
-
2019
- 2019-04-26 US US16/395,466 patent/US20190345888A1/en not_active Abandoned
- 2019-04-28 CN CN201910348098.2A patent/CN110469417A/zh active Pending
Also Published As
Publication number | Publication date |
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US20190345888A1 (en) | 2019-11-14 |
JP2019196761A (ja) | 2019-11-14 |
CN110469417A (zh) | 2019-11-19 |
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