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1. (WO2019044597) VALVE OPENING DETERMINATION DEVICE OF RELIEF VALVE
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Pub. No.: WO/2019/044597 International Application No.: PCT/JP2018/030874
Publication Date: 07.03.2019 International Filing Date: 21.08.2018
IPC:
F02M 55/02 (2006.01) ,F02D 41/04 (2006.01) ,F02D 41/22 (2006.01) ,F02D 45/00 (2006.01) ,F02M 59/20 (2006.01) ,F02M 63/00 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
55
Fuel-injection apparatus characterised by their fuel conduits or their venting means
02
Conduits between injection pumps and injectors
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
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
22
Safety or indicating devices for abnormal conditions
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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
59
Pumps specially adapted for fuel-injection and not provided for in groups F02M39/-F02M57/126
20
Varying fuel delivery in quantity or timing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
63
Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/-F02M57/143; Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/-F02M61/193
Applicants:
株式会社デンソー DENSO CORPORATION [JP/JP]; 愛知県刈谷市昭和町1丁目1番地 1-1, Showa-cho, Kariya-city, Aichi 4488661, JP
Inventors:
平田 靖雄 HIRATA, Yasuo; JP
Agent:
山田 強 YAMADA, Tsuyoshi; JP
Priority Data:
2017-16371628.08.2017JP
Title (EN) VALVE OPENING DETERMINATION DEVICE OF RELIEF VALVE
(FR) DISPOSITIF DE DÉTERMINATION D'OUVERTURE DE SOUPAPE D'UNE SOUPAPE DE DÉCHARGE
(JA) リリーフ弁の開弁判定装置
Abstract:
(EN) In the present invention, an ECU (90) is applied to a fuel injection system (10). The ECU (90) feedback-controls the discharge amount of a high-pressure pump (30) on the basis of a deviation between a target fuel pressure, which is a target value of the fuel pressure in a delivery pipe (60), and an actual fuel pressure detected by a pressure sensor (82). Further, the ECU (90) sets the target fuel pressure to a prescribed valve opening-time target value if it has been determined that the actual fuel pressure has risen to a valve opening pressure, and the ECU determines that a relief valve (80) is in an open state on the basis of the followability of the actual fuel pressure with respect to the set valve opening-time target value.
(FR) Dans la présente invention, une unité de commande électronique (ECU) (90) est appliquée à un système d'injection de carburant (10). L'ECU (90) commande par rétroaction la quantité d'évacuation d'une pompe haute pression (30) sur la base d'un écart entre une pression de carburant cible, qui est une valeur cible de la pression de carburant dans une conduite de refoulement (60), et une pression de carburant réelle détectée par un capteur de pression (82). En outre, l'ECU (90) règle la pression de carburant cible à une valeur cible prédéfinie du moment d'ouverture de soupape s'il a été déterminé que la pression de carburant réelle a augmenté à une pression d'ouverture de soupape, et l'ECU détermine qu'une soupape de décharge (80) est dans un état ouvert sur la base de la capacité de suivi de la pression de carburant réelle par rapport à la valeur cible définie du moment d'ouverture de soupape.
(JA) ECU(90)は、燃料噴射システム(10)に適用される。ECU(90)は、デリバリパイプ(60)内の燃圧の目標値である目標燃圧と圧力センサ(82)により検出された実燃圧との偏差に基づいて、高圧ポンプ(30)の吐出量をフィードバック制御する。また、ECU(90)は、実燃圧が開弁圧まで上昇したと判定した場合において、目標燃圧を所定の開弁時目標値に設定する。そして、設定した開弁時目標値に対する実燃圧の追従性に基づいて、リリーフ弁(80)が開弁状態にあることを判定する。
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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)