JP4547007B2 - 内燃機関の燃料噴射弁の漏れ検査のための方法並びに装置 - Google Patents
内燃機関の燃料噴射弁の漏れ検査のための方法並びに装置 Download PDFInfo
- Publication number
- JP4547007B2 JP4547007B2 JP2007541927A JP2007541927A JP4547007B2 JP 4547007 B2 JP4547007 B2 JP 4547007B2 JP 2007541927 A JP2007541927 A JP 2007541927A JP 2007541927 A JP2007541927 A JP 2007541927A JP 4547007 B2 JP4547007 B2 JP 4547007B2
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- Prior art keywords
- temperature
- internal combustion
- fuel injection
- combustion engine
- valve
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- Expired - Fee Related
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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
- F02D41/22—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
-
- 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
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/002—Investigating fluid-tightness of structures by using thermal means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/025—Details with respect to the testing of engines or engine parts
-
- 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
- F02D2041/2065—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control being related to the coil temperature
-
- 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
- F02D2041/225—Leakage detection
-
- 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
- F02D2200/0602—Fuel pressure
-
- 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
- F02D2200/0606—Fuel temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
- Examining Or Testing Airtightness (AREA)
Description
本発明は、独立請求項の上位概念部に記載した、燃料噴射弁の、高圧燃料源との接続を少なくとも間接的に電気的な制御ユニットにより制御するアクチュエータを備えた、内燃機関の燃料噴射弁の漏れ検査のための方法並びに装置に関する。
この課題は、冒頭で述べた形式の、内燃機関の燃料噴射弁の漏れ検査のための方法並びに装置においては、請求項1および10の特徴により解決される。
本発明のさらなる利点および特徴は、本発明の実施例の以下の説明および図面に記載されている。
噴射開始と噴射量とは、電気制御可能な、内燃機関のシリンダ300内に組み込まれているインジェクタ、たとえば図1に示した磁石弁インジェクタで調整される。燃料は、たとえばコモンレールシステムにおいて少なくとも1つの燃料高圧ポンプと高圧アキュムレータ(レール)とを有する燃料高圧源95から、高圧接続部90を介してノズルニードルと呼ばれる噴射ノズル60に通ずる高圧流入通路92に案内され、流入絞り100を介して弁制御室50に案内される。この弁制御室50は、磁石コイル20と磁石プランジャ30と弁球40とから形成されている磁石弁により開放することができる流出絞り80を介して、燃料戻し通路10に接続されている。
Claims (12)
- 少なくとも1つの磁石弁を備えた内燃機関の燃料噴射弁の漏れ検査のための方法であって、前記磁石弁は制御装置により制御可能であり、前記燃料噴射弁の前記磁石弁の温度と相関関係にある温度量を検出して漏れの存在を推測し、温度量としては前記磁石弁の磁石コイルの温度を検出する、少なくとも1つの磁石弁を備えた内燃機関の燃料噴射弁の漏れ検査のための方法において、
前記磁石コイルの温度を前記磁石弁の保持電流調整のオンオフ比から規定することを特徴とする、内燃機関の燃料噴射弁の漏れ検査のための方法。 - 前記温度を、オンオフ比が不変に設定されている場合に電流レベルの高さから規定する、請求項1記載の方法。
- 前記温度を、電圧と電流との割合から検出するものであって、前記電磁石において、電圧と電流の量は、他方の量が測定される間は一定である、請求項1記載の方法。
- 前記温度を、前記電磁石が制御されない段階で検出する、請求項3記載の方法。
- 2つの異なる燃料圧における2つの温度の差異(ΔT)に基づき前記燃料噴射弁の故障を推測する、請求項1記載の方法。
- 前記温度、該温度の時間勾配及び該前記温度の時間勾配の時間的な変化の、それぞれ少なくとも1つの設定可能な閾値が超過されると、漏れを推測する、請求項1記載の方法。
- 内燃機関の温度に基づいて前記閾値を確定する、請求項6記載の方法。
- 燃料噴射弁が組み付けられている、内燃機関のシリンダ(300)の温度に基づいて前記閾値を確定する、請求項6記載の方法。
- 少なくとも1つの磁石弁を備えた内燃機関の燃料噴射弁の漏れ検査のための装置であって、前記磁石弁は制御装置により制御可能であり、少なくとも1つの前記磁石弁を備えた前記内燃機関の前記燃料噴射弁の漏れ検査のための装置において、
燃料噴射弁の前記磁石弁のコイルの温度と相関関係にある温度量を検出して漏れの存在を推測する手段が設けられており、温度量としては前記磁石弁の磁石コイルの温度が検出されることを特徴とする、内燃機関の燃料噴射弁の漏れ検査のための装置。 - 前記磁石コイルの温度は前記磁石弁の保持電流調整のオンオフ比から規定される、請求項9記載の装置。
- 前記手段が、運転中の内燃機関を制御する制御ユニットに設けられている、請求項9記載の装置。
- 前記手段が、診断テスタである、請求項9記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004055575A DE102004055575A1 (de) | 2004-11-18 | 2004-11-18 | Verfahren und Vorrichtung zur Leckageprüfung eines Kraftstoffeinspritzventils einer Brennkraftmaschine |
PCT/EP2005/055874 WO2006053852A1 (de) | 2004-11-18 | 2005-11-10 | Verfahren und vorrichtung zur leckageprüfung eines kraftstoffeinspritzventils einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008520891A JP2008520891A (ja) | 2008-06-19 |
JP4547007B2 true JP4547007B2 (ja) | 2010-09-22 |
Family
ID=35830256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007541927A Expired - Fee Related JP4547007B2 (ja) | 2004-11-18 | 2005-11-10 | 内燃機関の燃料噴射弁の漏れ検査のための方法並びに装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7937988B2 (ja) |
EP (1) | EP1815120B1 (ja) |
JP (1) | JP4547007B2 (ja) |
CN (1) | CN101061303B (ja) |
BR (1) | BRPI0513254B1 (ja) |
DE (1) | DE102004055575A1 (ja) |
WO (1) | WO2006053852A1 (ja) |
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EP2589791B1 (en) * | 2011-11-04 | 2014-12-17 | Caterpillar Motoren GmbH & Co. KG | Fuel inlet valve and cylinder head for housing a fuel inlet valve |
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EP2666997A1 (en) * | 2012-05-25 | 2013-11-27 | Inergy Automotive Systems Research (Société Anonyme) | Method for detecting a presence or absence of a leak in a fuel system |
DE102012220025A1 (de) * | 2012-06-29 | 2014-01-02 | Robert Bosch Gmbh | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE102012218327B4 (de) * | 2012-10-09 | 2022-03-24 | Vitesco Technologies GmbH | Verfahren und Vorrichtung zum Bestimmen der Wicklungstemperatur eines Injektors |
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-
2004
- 2004-11-18 DE DE102004055575A patent/DE102004055575A1/de not_active Ceased
-
2005
- 2005-11-10 WO PCT/EP2005/055874 patent/WO2006053852A1/de active Application Filing
- 2005-11-10 EP EP05807924.5A patent/EP1815120B1/de not_active Not-in-force
- 2005-11-10 US US11/666,787 patent/US7937988B2/en not_active Expired - Fee Related
- 2005-11-10 JP JP2007541927A patent/JP4547007B2/ja not_active Expired - Fee Related
- 2005-11-10 BR BRPI0513254-1A patent/BRPI0513254B1/pt not_active IP Right Cessation
- 2005-11-10 CN CN200580039389XA patent/CN101061303B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1815120A1 (de) | 2007-08-08 |
US7937988B2 (en) | 2011-05-10 |
DE102004055575A1 (de) | 2006-05-24 |
JP2008520891A (ja) | 2008-06-19 |
EP1815120B1 (de) | 2013-05-22 |
US20080264157A1 (en) | 2008-10-30 |
CN101061303A (zh) | 2007-10-24 |
BRPI0513254A (pt) | 2008-04-29 |
BRPI0513254B1 (pt) | 2018-08-07 |
CN101061303B (zh) | 2012-12-12 |
WO2006053852A1 (de) | 2006-05-26 |
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