JP6529280B2 - 排気ガス温度制御装置および排気ガスの温度調整装置 - Google Patents
排気ガス温度制御装置および排気ガスの温度調整装置 Download PDFInfo
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Images
Classifications
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0234—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using heat exchange means in the exhaust line
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
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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
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
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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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/10—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat accumulator
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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
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/14—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust gas
- F01N2900/1404—Exhaust gas temperature
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
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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)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Description
車両500は、ディーゼルエンジン(以下、「エンジン」と呼ぶ。)510、4つの車輪520および排気ガスの浄化システム10を備えている。エンジン510は、軽油を燃料とし、燃料の爆発燃焼によって駆動力を出力し、また、爆発燃焼に伴いNOx(窒素酸化物)およびPM(粒子状物質)を含む排気ガスを排気系統に備えられた浄化システム10を介して大気に排出する。なお、第1の実施形態において用いられる図1に示す車両構成は、他の実施形態においても同様に用いられ得る。
図14〜図16を参照して、第2の実施形態に係る排気ガス温度制御装置20Aについて説明する。より具体的には、車両の運転状態に応じた流路切替弁25の切り替えの態様および加熱部材31による蓄熱体30の加熱の態様について説明する。図14は冷間始動時における第2の実施形態に係る排気ガス温度制御装置の動作状態を示す説明図である。図15は減速時および低負荷時における第2の実施形態に係る排気ガス温度制御装置の動作状態を示す説明図である。図16は加速時における第2の実施形態に係る排気ガス温度制御装置の動作状態を示す説明図である。
(1)上記各実施形態においては、蓄熱体30に設けられた第1の温度センサ191、蓄熱体30の前段に備えられた第2の温度センサ192によって、蓄熱体30、および排気ガスの温度が取得されているが、エンジン510の始動後からの経過時間に基づいて、あるいは、加熱部材31に対する通電履歴に基づいて、一律に各温度が求められても良い。
11…排気管
11a…マニフォールド
11b…マフラエンドパイプ
12…ディーゼル酸化触媒
13…ディーゼル微粒子フィルタ
14…選択触媒還元装置
15…ディーゼル酸化触媒
17…燃料噴射装置
18…尿素水噴射装置
191…第1の温度センサ
192…第2の温度センサ
193…第3の温度センサ
20…排気ガス温度制御装置
20A…排気ガス温度制御装置
20a…導入部
20b…排出部
201…ケース
21…第1の流路管
21a…第1の流路部
22…第2の流路管
22a…第2の流路部
23…断熱材
25…流路切替弁
30…蓄熱体
31…加熱部材
35…第2の加熱部材
40…オルタネータ
401…オルタネータ側プーリー
41…補機
42…バッテリ
500…車両
510…ディーゼルエンジン
511…エンジン側プーリー
512…ベルト
520…車輪
60…制御ユニット
61…第1のリレー
62…第2のリレー
63…第3のリレー
64…電流計
T1…第1の所定温度
T2…第2の所定温度
T3…第3の所定温度
T4…第4の所定温度
Claims (6)
- 内燃機関の排気管路においてディーゼル微粒子フィルタの後段に配置され、排気ガス浄化装置の前段に配置され、前記排気ガス浄化装置における排気ガス温度を調整する排気ガス温度制御装置であって、
熱を蓄熱または放熱可能な蓄熱体と、
前記蓄熱体に熱を蓄熱させるための加熱部材と、
前記蓄熱体を内包し、排気ガスの流路を構成する第1の流路部と、
前記第1の流路部とは異なる、前記排気ガスの流路を構成する第2の流路部と、
前記排気ガスの流路を前記第1の流路部と前記第2の流路部の少なくともいずれか一方に切り替える切替部と、
前記切替部を制御することによって、前記内燃機関を搭載する車両の運転状態に応じて、前記蓄熱体に熱を蓄熱または前記蓄熱体から熱を放熱させて前記排気ガス温度制御装置から排出される排気ガスの温度を制御する温度制御部であって、
前記排気ガス温度が高負荷時または前記ディーゼル微粒子フィルタの再生処理時における第1の所定温度以上であり、前記蓄熱体の温度が前記第1の所定温度よりも低く、導入された排気ガス温度を上昇させない第2の所定温度未満の場合に、または、前記排気ガス温度が前記第1の所定温度よりも低く、前記排気ガス浄化装置の活性化には不足する第3の所定温度未満であり、前記蓄熱体の温度が前記第2の所定温度および前記第3の所定温度よりも高く、前記排気ガス浄化装置を活性化可能な第4の所定温度以上の場合に、前記第1の流路部に前記排気ガスを導くよう前記切替部を切り替える、温度制御部と
を備える、排気ガス温度制御装置。 - 請求項1に記載の排気ガス温度制御装置において、
前記加熱部材は、前記車両の運転状態に応じて得られる回生電力によって発熱する、排気ガス温度制御装置。 - 請求項1に記載の排気ガス温度制御装置において、
前記温度制御部は、前記排気ガス温度が前記第1の所定温度未満かつ前記第3の所定温度以上の場合、前記第2の流路部に前記排気ガスを導くよう前記切替部を切り替える、排気ガス温度制御装置。 - 請求項1に記載の排気ガス温度制御装置において、
前記温度制御部は、前記車両の運転状態が減速状態にある場合、低温始動状態にある場合、または、定常状態にある場合には、前記第2の流路部に前記排気ガスを導くように前記切替部を切り替える、排気ガス温度制御装置。 - 請求項4に記載の排気ガス温度制御装置において、
前記温度制御部は、前記車両の運転状態が減速状態にある場合、得られた回生電力を前記加熱部材に供給する、排気ガス温度制御装置。 - 請求項1、4および5のいずれか一項に記載の排気ガス温度制御装置において、
前記温度制御部は、前記車両の運転状態が加速状態にある場合、所定の負荷よりも高い高負荷状態にある場合には、前記第1の流路部に前記排気ガスを導くように前記切替部を切り替える、排気ガス温度制御装置。
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US15/041,826 US10300435B2 (en) | 2015-02-26 | 2016-02-11 | Ammonia generation apparatus and ammonia generation control apparatus |
DE102016001785.6A DE102016001785B4 (de) | 2015-02-26 | 2016-02-16 | Ammoniakerzeugungsvorrichtung und Ammoniakerzeugungssteuervorrichtung |
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