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Machine translation
1. (WO2012102467) METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION APPARATUS FOR HEAVY CONSTRUCTION EQUIPMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/102467    International Application No.:    PCT/KR2011/008559
Publication Date: 02.08.2012 International Filing Date: 10.11.2011
IPC:
F02D 21/08 (2006.01), F02M 25/07 (2006.01), F02D 41/04 (2006.01), F02D 29/00 (2006.01)
Applicants: DOOSAN INFRACORE CO., LTD. [KR/KR]; 7-11 Hwasu-dong, Dong-gu Incheon 401-020 (KR) (For All Designated States Except US).
LIM, Ji Hoon [KR/KR]; (KR) (For US Only).
KO, Min Seok [KR/KR]; (KR) (For US Only)
Inventors: LIM, Ji Hoon; (KR).
KO, Min Seok; (KR)
Agent: KIM, Kee-Hyo; 14F., Kukdong Building, 60-1 Chungmuro3-ka, Chung-ku Seoul 100-705 (KR)
Priority Data:
10-2011-0006702 24.01.2011 KR
Title (EN) METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION APPARATUS FOR HEAVY CONSTRUCTION EQUIPMENT
(FR) PROCÉDÉ DE COMMANDE D'UN APPAREIL DE RECIRCULATION DES GAZ D'ÉCHAPPEMENT POUR ÉQUIPEMENT DE CONSTRUCTION LOURD
(KO) 건설중장비의 배기가스 재순환장치 제어방법
Abstract: front page image
(EN)The present invention relates to a method for controlling an exhaust gas recirculation apparatus for heavy construction equipment. The exhaust gas recirculation apparatus includes: an engine; a turbocharger for rotating a turbine using exhaust gas exhausted from the engine, wherein the turbocharger pressurizes air supplied into the engine using a compressor connected to the turbine by a connection shaft; an intercooler for cooling the pressurized air introduced into the engine; a high-pressure EGR line including a high-pressure EGR cooler and a high-pressure EGR valve without passing through the turbocharger; a hybrid EGR line including a hybrid EGR valve and a hybrid EGR cooler, wherein the hybrid EGR line passes through only the compressor without passing through the turbine of the turbocharger; and a low-pressure EGR line including a low-pressure EGR valve and a low-pressure EGR cooler, wherein the low-pressure EGR line passes through the turbocharger. In the method for controlling the exhaust gas recirculation apparatus, a mechanical control step includes a step in which an engine control unit (ECU) receiving a low-load request signal from a driver, or driving and idle signals, opens or closes the hybrid EGR valve (151) of the hybrid EGR line (150). Thus, mechanical control and electrical control may be performed in harmony for optimized control.
(FR)La présente invention concerne un procédé de commande d'un appareil de recirculation des gaz d'échappement pour équipement de construction lourd. L'appareil de recirculation des gaz d'échappement comprend : un moteur ; un turbocompresseur permettant la rotation d'une turbine à l'aide des gaz d'échappement sortant du moteur, le turbocompresseur mettant sous pression l'air fourni dans le moteur à l'aide d'un compresseur relié à la turbine par un arbre de liaison ; un refroidisseur intermédiaire permettant de refroidir l'air sous pression introduit dans le moteur ; une conduite RGE haute pression comprenant un refroidisseur RGE haute pression et une soupape RGE haute pression sans passer dans le turbocompresseur ; une conduite RGE hybride comprenant une soupape RGE hybride et un refroidisseur RGE hybride, la conduite RGE hybride passant uniquement dans le compresseur sans passer dans la turbine du turbocompresseur ; et une conduite RGE basse pression comprenant une soupape RGE basse pression et un refroidisseur RGE basse pression, la conduite RGE basse pression passant dans le turbocompresseur. Le procédé de commande de l'appareil de recirculation des gaz d'échappement comprend une étape de commande mécanique consistant en une étape au cours de laquelle une unité de commande du moteur (ECU) recevant un signal de demande de faible charge d'un conducteur, ou des signaux de commande et de ralenti, ouvre et ferme la soupape RGE hybride (151) de la conduite hybride RGE (150). Ainsi, la commande mécanique et la commande électrique peuvent être réalisées en harmonie pour une commande optimisée.
(KO)본 발명의 건설중장비의 배기가스 재순환장치 제어방법은 엔진과; 상기 엔진에서 배출되는 배기가스를 이용하여 터빈을 회전시키고, 터빈과 접속축을 통해 접속된 콤프레셔를 통해 엔진으로 공급되는 공기를 압축하는 터보차저와; 상기 엔진으로 유입되는 압축공기를 냉각하는 인터쿨러와; 고압 EGR 쿨러와 고압 EGR 밸브가 마련되고, 상기 터보차저를 경유하지 않는 고압 EGR 라인과; 하이브리드 EGR 밸브와 하이브리드 EGR 쿨러가 마련되고, 상기 터보차저의 터빈을 경유하지 않고 콤프레셔만을 경유하는 하이브리드 EGR 라인과; 저압 EGR 밸브와 저압 EGR 쿨러가 마련되고, 상기 터보차저를 경유하는 저압 EGR 라인;을 구비하는 건설중장비의 배기가스 재순환장치를 제어함에 있어서 기계식 제어는 운전자의 저부하 요구 신호 또는 주행, 아이들 신호를 입력받은 엔진 제어유니트(ECU)가 하이브리드 EGR 라인(150)의 하이브리드 EGR 밸브(151)를 여는 단계를 포함하여 기계적인 제어와 전자적인 제어의 조화를 통하여 최적화된 제어를 수행할 수 있도록 한 것이다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)