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1. (WO2007010701) METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/010701 International Application No.: PCT/JP2006/312352
Publication Date: 25.01.2007 International Filing Date: 20.06.2006
IPC:
F02D 41/04 (2006.01) ,B01D 53/94 (2006.01) ,F01N 3/02 (2006.01) ,F01N 3/24 (2006.01) ,F01N 3/28 (2006.01) ,F02D 9/02 (2006.01) ,F02D 41/38 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
04
Introducing corrections for particular operating conditions
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
92
of engine exhaust gases
94
by catalytic processes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02
for cooling, or for removing solid constituents of, exhaust
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
28
Construction of catalytic reactors
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
9
Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
02
concerning induction conduits
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
30
Controlling fuel injection
38
of the high pressure type
Applicants:
いすゞ自動車株式会社 ISUZU MOTORS LIMITED [JP/JP]; 〒1408722 東京都品川区南大井6丁目26番1号 Tokyo 26-1, Minami-Oi 6-chome, Shinagawa-ku, Tokyo 1408722, JP (AllExceptUS)
伍 維 WU, Wei [CN/JP]; JP (UsOnly)
越智 直文 OCHI, Naofumi [JP/JP]; JP (UsOnly)
池田 秀 IKEDA, Shigeru [JP/JP]; JP (UsOnly)
益子 達夫 MASHIKO, Tatsuo [JP/JP]; JP (UsOnly)
Inventors:
伍 維 WU, Wei; JP
越智 直文 OCHI, Naofumi; JP
池田 秀 IKEDA, Shigeru; JP
益子 達夫 MASHIKO, Tatsuo; JP
Agent:
小川 信一 OGAWA, Shin-ichi; 〒1040045 東京都中央区築地1丁目4番5号 第37興和ビル 小川・野口・斎下特許事務所 Tokyo Ogawa, Noguchi & Saika International Patent Office 37 Kowa Building 4-5, Tsukiji 1-chome Chuo-ku, Tokyo 1040045, JP
Priority Data:
2005-20682515.07.2005JP
Title (EN) METHOD OF CONTROLLING EXHAUST GAS PURIFICATION SYSTEM, AND EXHAUST GAS PURIFICATION SYSTEM
(FR) PROCÉDÉ DE COMMANDE DU SYSTÈME DE PURIFICATION DU GAZ D’ÉCHAPPEMENT, ET SYSTÈME DE PURIFICATION DU GAZ D’ÉCHAPPEMENT
(JA) 排気ガス浄化システムの制御方法及び排気ガス浄化システム
Abstract:
(EN) In an exhaust gas temperature raising control for recovering purification ability of an exhaust gas purification device (12) of an internal combustion engine, the temperature of the exhaust gas is efficiently raised to a target level with white smoke prevented from being produced. To achieve this, in the exhaust gas temperature raising control in recovery control of the exhaust gas purification device (12), when the temperature (Tg1) of the exhaust gas flowing into the exhaust gas purification device (12) is lower than a predetermined judgment value (Tp), a first exhaust gas temperature raising control that does not include post injection but includes intake air restriction is performed, and when equal to or higher than the predetermined judgment value (Tp), a second exhaust gas temperature raising control that includes both the post injection and the intake air restriction is performed to set an intake air restriction amount (&agr;) in the first exhaust gas temperature raising control greater than an intake air restriction amount (&bgr;) in the second exhaust gas temperature raising control.
(FR) Selon l’invention, dans une commande d’augmentation de la température du gaz d’échappement permettant de rétablir la capacité de purification d’un dispositif de purification du gaz d’échappement (12) d’un moteur à combustion interne, la température du gaz d’échappement augmente de manière efficace jusqu’à un niveau cible et sans qu’une fumée blanche ne puisse être produite. Pour ce faire, dans la commande d’augmentation de la température du gaz d’échappement de la commande de rétablissement du dispositif de purification du gaz d’échappement (12), lorsque la température (Tg1) du gaz d’échappement circulant dans le dispositif de purification du gaz d’échappement (12) est inférieure à une valeur d’évaluation prédéterminée (Tp), une première commande d’augmentation de la température du gaz d’échappement qui n’inclut pas la post injection mais inclut la restriction de l’air d’admission est réalisée, et, lorsqu’elle est supérieure ou égale à la valeur d’évaluation prédéterminée (Tp), une seconde commande d’augmentation de la température du gaz d’échappement qui inclut à la fois la post injection et la restriction de l’air d’admission est réalisée pour définir un niveau de restriction de l’air d’admission (&agr;) dans la première commande d’augmentation de la température du gaz d’échappement supérieur à un niveau de restriction de l’air d’admission (&bgr;) dans la seconde commande d’augmentation de la température du gaz d’échappement.
(JA)  内燃機関の排気ガス浄化装置(12)の浄化能力を回復するための排気昇温制御の際に、白煙の発生を防止しつつ、効率よく排気ガスを目標温度まで昇温するために、排気ガス浄化装置(12)の再生制御の際の排気昇温制御において、前記排気ガス浄化装置(12)に流入する排気ガスの温度(Tg1)が、所定の判定値(Tp)より低い場合は、ポスト噴射を含まずに吸気絞りを含む第1排気昇温制御を行い、前記所定の判定値(Tp)以上の場合は、ポスト噴射と吸気絞りを含む第2排気昇温制御を行い、第1排気昇温制御の場合の吸気絞り量(α)を、第2排気昇温制御の場合の吸気絞り量(β)よりも大きくする。
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP1905992US20090235644CN101223348