JP6710045B2 - 高圧燃料供給ポンプの制御方法およびそれを用いた高圧燃料供給ポンプ - Google Patents
高圧燃料供給ポンプの制御方法およびそれを用いた高圧燃料供給ポンプ Download PDFInfo
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- 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
- F02M59/368—Pump inlet valves being closed when actuated
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure 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
- F02D41/30—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
- F02D41/406—Electrically controlling a diesel injection pump
-
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
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- 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
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
- F02M63/0022—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures the armature and the valve being allowed to move relatively to each other
-
- 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
-
- 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
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2037—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for preventing bouncing of the valve needle
-
- 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
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2044—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using pre-magnetisation or post-magnetisation of the 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2048—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit said control involving a limitation, e.g. applying current or voltage limits
-
- 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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Description
以下、図面を参照して、本発明の実施形態について説明する。
そのうえで、取り付け根部150が内燃機関のシリンダヘッド90に気密に固定される。図3の気密固定配置例では、高圧燃料供給ポンプはポンプ本体1に設けられたフランジ1eを用い内燃機関のシリンダヘッド90の平面に密着し、複数のボルト91で固定される。そのうえで取付けフランジ1eは、溶接部1fにてポンプ本体1に全周を溶接結合されて環状固定部を形成している。本実施例では、溶接部1fの溶接のためにレーザー溶接を用いている。またシリンダヘッド90とポンプ本体1間のシールのためにOリング61がポンプ本体1に嵌め込まれ、エンジンオイルが外部に漏れるのを防止する。
まず吸入弁部Aは、吸入弁30、吸入弁シート31、吸入弁ストッパ32、吸入弁付勢ばね33、吸入弁ホルダ34からなる。このうち吸入弁シート31は円筒型で、内周側軸方向にシート部31a、円筒の軸を中心に放射状に1つが2つ以上の吸入通路部31bを有し、外周円筒面で高圧燃料供給ポンプ本体1に圧入保持される。
(数1)
ロッド付勢ばね40力>アンカー部付勢ばね41力+吸入弁付勢ばね33力+流体により吸入弁が閉じようとする力 ‥‥(1)
(1)式の関係により、無通電時では、各ばね力により、ロッド35は吸入弁30を吸入弁シート部31aから引き離す方向、すなわち弁が開弁する方向に力f1として作用する。(1)式より、弁が開弁する方向の力f1は下記の(2)式で表現される。
(数2)
f1=ロッド付勢ばね力−(アンカー部付勢ばね力+吸入弁付勢ばね力+流体により吸入弁が閉じようとする力) ‥‥(2)
最後に、コイル部Cの構成について述べる。コイル部Cは、第一ヨーク42、電磁コイル43、第2ヨーク44、ボビン45、端子46、コネクタ47から成る。ボビン45に銅線が複数回巻かれたコイル43が、第一ヨーク42と第二ヨーク44により取り囲まれる形で配置され、樹脂部材であるコネクタと一体にモールドされ固定される。二つの端子46のそれぞれの方端はコイルの銅線の両端にそれぞれ通電可能に接続される。端子46も同様にコネクタと一体にモールドされ残りの方端がエンジン制御ユニット側と接続可能な構成としている。
39が衝突する手前に、保持電流よりさらに低い電流に切り替えて、衝突した後に保持電流へ切り替える方法も可能である。
2:プランジャ
6:シリンダ
7:シールホルダ
8:吐出弁機構
9:圧力脈動低減機構
10a:低圧燃料吸入口
11:加圧室
12:燃料吐出口
13:プランジャシール
30:吸入弁
31:吸入弁シート
32:吸入弁ストッパ
33:吸入弁ばね
35:ロッド
36:アンカー部
38:アウターコア
39:固定コア
40:ロッド付勢ばね
41:アンカー部付勢ばね
43:電磁コイル
300:電磁吸入弁
361:磁路形成部
362:ガイド部
Claims (7)
- 加圧室の吸入側に配置される吸入弁と、前記吸入弁を開弁方向に付勢するロッドと、ソレノイドが通電されることで生じる磁気吸引力により吸引され前記ロッドを閉弁方向に移動させるアンカーとを備えた高圧燃料供給ポンプの制御方法において、
最大駆動電流を前記ソレノイドに流すことでアンカーを閉弁方向に移動させ、その後、前記最大駆動電流よりも小さく閉弁を保持するための保持電流を前記ソレノイドに流すことで前記アンカーを閉弁位置に保持させ、
前記アンカーが開弁方向に移動する際に第1駆動電流を所定時間、前記ソレノイドに流した後に、前記第1駆動電流よりも大きい第2駆動電流を所定時間、前記ソレノイドに流し、その後に前記第2駆動電流よりも大きい第3駆動電流を所定時間、前記ソレノイドに流すことで、前記アンカーに閉弁方向への電磁吸引力を作用させ、
前記第1駆動電流は前記保持電流よりも小さい電流値であり、前記第2駆動電流は前記保持電流の電流値の範囲と重なる電流値であり、前記第3駆動電流は前記保持電流以上の電流値であることを特徴とする高圧燃料供給ポンプの制御方法。 - 請求項1に記載の高圧燃料供給ポンプの制御方法において、
前記加圧室の燃料を加圧するプランジャの上死点以降で前記第1駆動電流を前記ソレノイドに流すことを特徴とする高圧燃料供給ポンプの制御方法。 - 請求項1に記載の高圧燃料供給ポンプの制御方法において、
前記加圧室の燃料を加圧するプランジャの上死点以降で前記第1駆動電流、及び前記第2駆動電流を前記ソレノイドに流すことを特徴とする高圧燃料供給ポンプの制御方法。 - 請求項1に記載の高圧燃料供給ポンプの制御方法において、
最大駆動電流を前記ソレノイドに流すことでアンカーを閉弁方向に移動させ、
前記第2駆動電流は前記最大駆動電流よりも小さいことを特徴とする高圧燃料供給ポンプの制御方法。 - 請求項1に記載の高圧燃料供給ポンプの制御方法において、
前記保持電流を前記ソレノイドに流した後、前記ソレノイドに流す駆動電流を遮断させ、さらにその後、前記第1駆動電流を前記ソレノイドに流すことを特徴とする高圧燃料供給ポンプの制御方法。 - 請求項1に記載の高圧燃料供給ポンプの制御方法において、
吸入弁閉弁時の電流波形と開弁時の電流波形が前記加圧室の燃料を加圧するプランジャの上死点を挟んで対称の相似形となることを特徴とした高圧燃料供給ポンプの制御方法。 - 加圧室の吸入側に配置される吸入弁と、
前記吸入弁を開弁方向に付勢するロッドと、ソレノイドが通電されることで生じる磁気吸引力により吸引され前記ロッドを閉弁方向に移動させるアンカーとを備えた高圧燃料供給ポンプにおいて、
前記アンカーは、最大駆動電流が前記ソレノイドに流れることで閉弁方向に移動し、その後、前記最大駆動電流よりも小さく閉弁を保持するための保持電流が前記ソレノイドに流れることで閉弁位置に保持され、
前記アンカーは、前記アンカーが開弁方向に移動する際に第1駆動電流が所定時間、前記ソレノイドに流れた後に、前記第1駆動電流よりも大きい第2駆動電流が所定時間、前記ソレノイドに流れ、その後に前記第2駆動電流よりも大きい第3駆動電流を所定時間、前記ソレノイドに流れることで閉弁方向への電磁吸引力が作用し、
前記第1駆動電流は前記保持電流よりも小さい電流値であり、前記第2駆動電流は前記保持電流の電流値の範囲と重なる電流値であり、前記第3駆動電流は前記保持電流以上の電流値であることを特徴とする高圧燃料供給ポンプ
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JP2015252809A JP6710045B2 (ja) | 2015-12-25 | 2015-12-25 | 高圧燃料供給ポンプの制御方法およびそれを用いた高圧燃料供給ポンプ |
US15/775,944 US10961961B2 (en) | 2015-12-25 | 2016-11-07 | Control method of high-pressure fuel supply pump and high-pressure fuel supply pump using the same |
CN201680073814.5A CN108431398B (zh) | 2015-12-25 | 2016-11-07 | 高压燃料供给泵的控制方法以及使用该方法的高压燃料供给泵 |
PCT/JP2016/082902 WO2017110269A1 (ja) | 2015-12-25 | 2016-11-07 | 高圧燃料供給ポンプの制御方法およびそれを用いた高圧燃料供給ポンプ |
DE112016004671.5T DE112016004671B4 (de) | 2015-12-25 | 2016-11-07 | Steuerverfahren für Hochdruck-Kraftstoffzufuhrpumpe und Hochdruck-Kraftstoffzufuhrpumpe, die es verwendet |
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US10539104B2 (en) * | 2017-09-20 | 2020-01-21 | Stanadyne Llc | Three stage proportional control valve |
CN114651123B (zh) * | 2019-11-19 | 2023-11-24 | 日立安斯泰莫株式会社 | 电磁阀机构及高压燃料供给泵 |
JP7303764B2 (ja) * | 2020-02-28 | 2023-07-05 | 日立Astemo株式会社 | 高圧燃料ポンプの制御装置 |
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EP2453122B1 (en) * | 2010-11-12 | 2016-09-07 | Hitachi, Ltd. | Method and control apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine |
DE102011075270A1 (de) * | 2011-05-04 | 2012-11-08 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern eines Ventils |
JP5537498B2 (ja) * | 2011-06-01 | 2014-07-02 | 日立オートモティブシステムズ株式会社 | 電磁吸入弁を備えた高圧燃料供給ポンプ |
JP5639970B2 (ja) * | 2011-08-03 | 2014-12-10 | 日立オートモティブシステムズ株式会社 | 電磁弁の制御方法、高圧燃料供給ポンプの電磁吸入弁の制御方法および電磁吸入弁の電磁駆動機構の制御装置 |
JP6044366B2 (ja) * | 2013-01-30 | 2016-12-14 | 株式会社デンソー | 高圧ポンプの制御装置 |
JP6079487B2 (ja) | 2013-07-18 | 2017-02-15 | 株式会社デンソー | 高圧ポンプの制御装置 |
JP6244723B2 (ja) * | 2013-08-02 | 2017-12-13 | 株式会社デンソー | 高圧ポンプの制御装置 |
US10718301B2 (en) * | 2013-10-01 | 2020-07-21 | Ford Global Technologies, Llc | High pressure fuel pump control for idle tick reduction |
JP5905046B2 (ja) * | 2014-04-23 | 2016-04-20 | 日立オートモティブシステムズ株式会社 | 電磁吸入弁を備えた高圧燃料供給ポンプ |
US9429097B2 (en) * | 2014-12-04 | 2016-08-30 | Ford Global Technologies, Llc | Direct injection pump control |
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WO2017110269A1 (ja) | 2017-06-29 |
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