JP4781419B2 - 触媒を加熱する方法及び制御装置 - Google Patents
触媒を加熱する方法及び制御装置 Download PDFInfo
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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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0203—Variable control of intake and exhaust valves
- F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
- F02D13/0219—Variable control of intake and exhaust valves changing the valve timing only by shifting the phase, i.e. the opening periods of the valves are constant
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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
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0261—Controlling the valve overlap
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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
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
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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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D41/025—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus by changing the composition of the exhaust gas, e.g. for exothermic reaction on exhaust gas treating apparatus
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/12—Other methods of operation
- F02B2075/125—Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
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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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
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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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
- F02D41/024—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus
- F02D41/0255—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to increase temperature of the exhaust gas treating apparatus to accelerate the warming-up of the exhaust gas treating apparatus at engine start
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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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
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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
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
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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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
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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
- Y02T10/12—Improving ICE efficiencies
-
- 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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Exhaust Gas After Treatment (AREA)
Description
冒頭で述べられた種類の方法の場合には、内燃機関が、コールドスタートの後のアイドリング中に、通常運転の際よりも、より大きな弁オーバーラップ及び/又はより大きな弁オーバーラップ断面で運転されることによって、吸気システムと排気ガスシステムとの間に十分な圧力差がある場合には、吸気システムからの未燃焼の空気が、関与する燃焼室を通じて排気ガスシステムの中へ流れ込む。しかしながら、通常の状況の下では、この圧力差は十分ではないか或いは(プラスとマイナスの)反対の記号を持っていることさえあり、そのために排気ガスが燃焼室内へ逆流したり或いは不完全にしか押出されない。このことはまた、排気ガスフィードバックとして知られている。
点火の遅角移動量が大きくなるに伴って低下する。
先に述べられ、また以下でなお説明されるメルクマールは、本発明の枠組みを越えること無しに、単にそれぞれ提示された組み合せによってだけではなく、その他の組み合わせで或いは単独で利用可能であるということが理解されるものとする。
12…燃焼室
14…ピストン
16…点火プラグ
18…インレット弁
19…アクチュエータ
20…アウトレット弁
21…アクチュエータ
22…吸気システム
24…インジェクター
26…燃料
28…排気ガスシステム
30…三元触媒
32…触媒
34…排気ガスターボチャージャー
36…タービン
38…コンプレッサー
40…マニホールド
42…ウェイストゲート弁
48…制御装置
50…回転角度センサ
52…エアマス計
54…圧力センサ
56、58…排気ガスセンサ
60…スロットルバルブコントロール
62…スロットルバルブ
゜KW…クランクシャフト角度
L…ラムダ
mL…エアマス
P…吸気システム内の圧力
S_AV…インレット弁制御信号
S_EV…アウトレット弁制御信号
S_K…燃料計量配分に関する制御信号
S_L…充填気制御に関する制御信号
S_WG…過給圧力制御に関する制御信号、S_Z…点火制御に関する制御信号
T…排気ガス温度
Claims (8)
- 直接燃料噴射と可変ガス交換弁制御とを備え、排気ガスシステム(28)で反応可能な排気ガスの燃料と空気から成る混合気を発生させることによって、過給された内燃機関(10)の排気ガスシステム(28)における触媒(30、32)を加熱する方法であって、その際、反応可能な排気ガスの燃料と空気から成る混合気の空気成分が、内燃機関(10)の吸気システム(22)からの空気が内燃機関の燃焼室(12)を通して排気ガスシステム(28)に掃気されることによって生成される、触媒を加熱する方法において、
内燃機関(10)が、コールドスタートの後のアイドリング中に、既に触媒(30、32)が暖められている時の通常運転の際よりも、より大きな弁オーバーラップ及びより大きな弁オーバーラップ断面の少なくともいずれかを用いることにより、また燃焼の前に噴射される燃料量を点火及び燃焼室(12)当たり少なくとも二つの部分噴射(ti_1、ti_2)に分割し且つ最適点火角度で発生される最高トルクより低いトルクを発生する点火角度により、運転されること、
を特徴とする触媒を加熱する方法。 - 内燃機関(10)が、最大可能充填率の少なくとも75%で運転されることを特徴とする請求項1に記載の方法。
- 内燃機関(10)が、コールドスタートの後、先ず通常のアイドリング回転数より高い回転数で運転されることを特徴とする請求項1または2に記載の方法。
- 内燃機関(10)の燃焼室(12)内への燃料の噴射が、燃焼室(12)の中に燃料の過剰な燃料と空気から成る混合気が生成されるように行われ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方法。
- 内燃機関(10)の燃焼室(12)内への燃料の噴射が、排気ガスシステム(28)の中の反応可能な排気ガスの燃料と空気から成る混合気の空気過剰率ラムダが1よりも大きいかまたは1に等しくなるように行われることを特徴とする請求項4に記載の方法。
- 内燃機関(10)の回転数(n)が、内燃機関(10)のスタートの際に測定され、且つスタート終了回転数(n_SE)をオーバーの後直ちに、触媒の加熱が開始されることを特徴とする請求項1ないし5のいずれかに記載の方法。
- 直接燃料噴射と可変ガス交換弁制御とを備えた、過給された内燃機関(10)の排気ガスシステム(28)における触媒(30、32)の加熱を制御するための制御装置(48)であって、その際、加熱が排気ガスシステム(28)の中の反応可能な排気ガスの燃料と空気から成る混合気を生成することによって行われ、また反応可能な排気ガスの燃料と空気から成る混合気の空気成分が、内燃機関(10)の吸気システム(22)からの空気が内燃機関の燃焼室(12)を通して排気ガスシステム(28)に掃気されることによって生成される、触媒の加熱を制御するための制御装置において、
内燃機関(10)を、コールドスタートの後に、既に触媒(30、32)が暖められている時の通常運転の際よりも、より大きな弁オーバーラップ及びより大きな弁オーバーラップ断面の少なくともいずれかを用いることにより、また燃焼の前に噴射される燃料量を点火及び燃焼室(12)当たり少なくとも二つの部分噴射(ti_1、ti_2)に分割し且つ最適点火角度で発生される最高トルクより低いトルクを発生する点火角度により、運転するために構成されること、
を特徴とする制御装置。 - 請求項2ないし6のいずれかに記載の方法の実施するために構成されることを特徴とする請求項7に記載の制御装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102007056216.2A DE102007056216B4 (de) | 2007-11-22 | 2007-11-22 | Verfahren und Steuergerät zum beschleunigten Aufheizen eines Katalysators im Abgassystem eines aufgeladenen Verbrennungsmotors mit variabler Ventilsteuerung |
DE102007056216.2 | 2007-11-22 |
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JP2009127626A JP2009127626A (ja) | 2009-06-11 |
JP4781419B2 true JP4781419B2 (ja) | 2011-09-28 |
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DE102009012336B3 (de) * | 2009-03-09 | 2010-07-22 | Audi Ag | Verfahren zum Aufheizen einer Komponente einer Abgasnachbehandlungseinrichtung einer Brennkraftmaschine |
DE102010002586A1 (de) * | 2010-03-04 | 2011-09-08 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Verbrennungsmotors |
DE102011012722B4 (de) | 2010-03-31 | 2019-09-12 | Mazda Motor Corp. | Verfahren zur Detektion anomaler Verbrennung für einen Fremdzündungsmotor und Fremdzündungsmotor |
JP4968387B2 (ja) * | 2010-04-20 | 2012-07-04 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
WO2011135859A1 (en) * | 2010-04-30 | 2011-11-03 | Mazda Motor Corporation | Control method of spark ignition engine and spark ignition engine |
JP5772025B2 (ja) * | 2011-02-07 | 2015-09-02 | 日産自動車株式会社 | 内燃機関の制御装置 |
US8272362B2 (en) * | 2011-03-29 | 2012-09-25 | Ford Global Technologies, Llc | Engine control method and system |
US8301358B2 (en) * | 2011-06-21 | 2012-10-30 | Ford Global Technologies, Llc | Method of engine starting |
US8832957B2 (en) | 2012-07-26 | 2014-09-16 | Caterpillar Inc. | Apparatus and method for determining ash height in a filter |
US9512798B2 (en) * | 2014-05-06 | 2016-12-06 | Ford Global Technologies, Llc | Method and system for direct injection noise mitigation |
DE102014017676A1 (de) * | 2014-11-28 | 2016-06-02 | Man Truck & Bus Ag | Verfahren zur Kaltstartvorwärmung einer aufgeladenen Brennkraftmaschine und/oder einer Abgasnachbehandlungseinrichtung |
JP6202063B2 (ja) * | 2015-09-15 | 2017-09-27 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
KR101744830B1 (ko) * | 2015-12-11 | 2017-06-08 | 현대자동차 주식회사 | 연속 가변 밸브 듀레이션 엔진의 밸브 타이밍 제어 시스템 및 방법 |
CN105715386B (zh) * | 2016-01-22 | 2018-10-19 | 河北苏同兴盛新能源科技有限公司 | 一种电控发动机利用排气蝶阀辅助冷启动的方法 |
KR101776748B1 (ko) * | 2016-02-11 | 2017-09-08 | 현대자동차 주식회사 | 연속 가변 밸브 듀레이션 엔진의 밸브 타이밍 제어 시스템 및 방법 |
GB2555437B (en) * | 2016-10-27 | 2019-09-11 | Ford Global Tech Llc | A method of cleaning an exhaust gas recirculation valve |
DE102016221847A1 (de) * | 2016-11-08 | 2018-05-09 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Verbrennungsmotors nach einem Kaltstart |
DE102019113744A1 (de) * | 2019-05-23 | 2020-11-26 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben einer Brennkraftmaschine mit variabler Auslassventilbetätigung und mit Einstellung der Abgastemperatur durch Betriebsdrehzahlvariation |
JP2021060026A (ja) * | 2019-10-09 | 2021-04-15 | トヨタ自動車株式会社 | 車両およびその制御方法 |
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2007
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US8561394B2 (en) | 2013-10-22 |
DE102007056216B4 (de) | 2016-02-04 |
DE102007056216A1 (de) | 2009-05-28 |
JP2009127626A (ja) | 2009-06-11 |
US20090133391A1 (en) | 2009-05-28 |
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