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1. (WO2018159718) CONSTRUCTION MACHINE
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Pub. No.: WO/2018/159718 International Application No.: PCT/JP2018/007637
Publication Date: 07.09.2018 International Filing Date: 28.02.2018
IPC:
F01N 3/00 (2006.01) ,F01N 3/023 (2006.01) ,F01N 3/033 (2006.01) ,F01N 3/18 (2006.01) ,F02D 45/00 (2006.01) ,F02M 26/15 (2016.01)
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
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
021
by means of filters
023
using means for regenerating the filters, e.g. by burning trapped particles
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
021
by means of filters
033
in combination with other devices
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
18
characterised by methods of operation; Regulation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
45
Electrical control not provided for in groups F02D41/-F02D43/98
[IPC code unknown for F02M 26/15]
Applicants:
株式会社日立建機ティエラ HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD. [JP/JP]; 滋賀県甲賀市水口町笹が丘1番2号 1-2, Sasagaoka, Minakuchicho, Koka-shi, Shiga 5280061, JP
Inventors:
野口 修平 NOGUCHI Shuuhei; JP
吉田 肇 YOSHIDA Hajime; JP
中林 哲也 NAKABAYASHI Tetsuya; JP
Agent:
特許業務法人広和特許事務所 HIROWA PATENT FIRM; 東京都新宿区西新宿3丁目1番3号 西新宿小出ビル4階 4F., Nishishinjuku Koide Bldg., 1-3, Nishishinjuku 3-chome, Shinjuku-ku, Tokyo 1600023, JP
Priority Data:
2017-03837801.03.2017JP
Title (EN) CONSTRUCTION MACHINE
(FR) ENGIN DE CHANTIER
(JA) 建設機械
Abstract:
(EN) A filter (30) of an exhaust gas purifying device (27) collects particulate matter in exhaust gas discharged from an engine (13). A filter inlet side pressure sensor (34) is provided on an inlet side (upstream side) of the filter (30). An EGR valve inlet side pressure sensor (22) is provided on an inlet side of an EGR valve (20). A regeneration controller (38C) built into a control device (38) determines whether the filter inlet side pressure sensor (34) is failing on the basis of a difference between a pressure value detected by the filter inlet side pressure sensor (34) and a pressure value detected by the EGR valve inlet side pressure sensor (22). If the filter inlet side pressure sensor (34) is determined to be failing, the regeneration controller (38C) controls a regeneration process using a differential pressure calculated on the basis of the pressure value detected by the EGR valve inlet side pressure sensor 22 and a pressure value detected by a filter outlet side pressure sensor (35).
(FR) L'invention concerne un filtre (30) d'un dispositif de purification de gaz d'échappement (27) collecte une matière particulaire dans un gaz d'échappement évacué d'un moteur (13). Un capteur de pression côté entrée de filtre (34) est disposé sur un côté d'entrée (côté amont) du filtre (30). Un capteur de pression côté entrée de soupape EGR (22) est disposé sur un côté d'entrée d'une soupape EGR (20). Un dispositif de commande de régénération (38C) intégré dans un dispositif de commande (38) détermine si le capteur de pression côté entrée de filtre (34) est défaillant sur la base d'une différence entre une valeur de pression détectée par le capteur de pression côté entrée de filtre (34) et une valeur de pression détectée par le capteur de pression côté entrée de soupape EGR (22). Si le capteur de pression côté entrée de filtre (34) est déterminé comme étant défaillant, le dispositif de commande de régénération (38C) commande un processus de régénération à l'aide d'une pression différentielle calculée sur la base de la valeur de pression détectée par le capteur de pression côté entrée de soupape RGE et d'une valeur de pression détectée par un capteur de pression côté sortie de filtre (35).
(JA) 排気ガス浄化装置(27)のフィルタ(30)は、エンジン(13)から排出される排気ガス中の粒子状物質を捕集する。フィルタ入口側圧力センサ(34)は、フィルタ(30)の入口側(上流側)に設けられている。EGR弁入口側圧力センサ(22)は、EGR弁(20)の入口側に設けられている。制御装置(38)に内蔵された再生コントローラ(38C)は、フィルタ入口側圧力センサ(34)により検出された圧力値とEGR弁入口側圧力センサ(22)により検出された圧力値との差に基づいて、フィルタ入口側圧力センサ(34)が不調か否かを判定する。再生コントローラ(38C)は、フィルタ入口側圧力センサ(34)が不調と判定されたときは、EGR弁入口側圧力センサ22により検出された圧力値とフィルタ出口側圧力センサ(35)により検出された圧力値とに基づいて算出される差圧を用いて再生処理の制御を行う。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)