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1. (WO2017090320) FUEL INJECTION CONTROL DEVICE AND FULE INJECTION SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/090320 International Application No.: PCT/JP2016/079377
Publication Date: 01.06.2017 International Filing Date: 04.10.2016
IPC:
F02D 41/20 (2006.01) ,F02D 41/36 (2006.01) ,F02M 51/00 (2006.01) ,F02M 51/06 (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
20
Output circuits, e.g. for controlling currents in command coils
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
32
of the low pressure type
36
with means for controlling distribution
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
51
Fuel-injection apparatus characterised by being operated electrically
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
51
Fuel-injection apparatus characterised by being operated electrically
06
Injectors peculiar thereto
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:
片岡 一 KATAOKA Hajime; JP
後藤 守康 GOTOH Moriyasu; JP
山本 辰介 YAMAMOTO Shinsuke; JP
Agent:
金 順姫 JIN Shunji; JP
Priority Data:
2015-23196427.11.2015JP
Title (EN) FUEL INJECTION CONTROL DEVICE AND FULE INJECTION SYSTEM
(FR) DISPOSITIF DE COMMANDE D'INJECTION DE CARBURANT ET SYSTÈME D'INJECTION DE CARBURANT
(JA) 燃料噴射制御装置および燃料噴射システム
Abstract:
(EN) As a fuel injection control device, an ECU (100) is equipped with an increase control unit (111), a target value setting unit (114), and an estimation unit (115). The increase control unit (111) controls the supply of electricity to a coil (70) so as to begin increasing the coil current when a needle (30) serving as a valve body is in the closed state, and to increase the coil current to a target value. The estimation unit (115) estimates the amount of overshoot when overshoot behavior occurs, wherein a movable core (40) moves as a result of the coil current reaching the target value and the needle (30) continues to move due to inertia even after the movable core makes contact with a stationary core (60). When the amount of overshoot estimated by the estimation unit (115) is equal to or exceeds a prescribed amount, the target value setting unit (114) lowers the target value in subsequent settings so as to be lower than the current setting.
(FR) La présente invention concerne un dispositif de commande d'injection de carburant comprenant une ECU (100) dotée d'une unité de commande d'augmentation (111), d'une unité de réglage de valeur cible (114) et d'une unité d'estimation (115). L'unité de commande d'augmentation (111) commande l'alimentation d'une bobine (70) en électricité de façon à commencer à augmenter le courant de bobine lorsqu'une aiguille (30) servant de corps de soupape est dans l'état fermé, et à augmenter le courant de bobine jusqu'à une valeur cible. L'unité d'estimation (115) estime la quantité de dépassement lorsqu'un comportement de dépassement se produit, un noyau mobile (40) se déplaçant lorsque le courant de bobine atteint la valeur cible et l'aiguille (30) continuant à se déplacer par inertie même après que le noyau mobile entre en contact avec un noyau fixe (60). Lorsque la quantité de dépassement estimée par l'unité d'estimation (115) est supérieure ou égale à une quantité prescrite, l'unité de réglage de valeur cible (114) abaisse la valeur cible dans les réglages ultérieurs de manière à la rendre inférieure au réglage du courant.
(JA) 燃料噴射制御装置としてのECU(100)は、上昇制御部(111)、目標値設定部(114)および推定部(115)を備える。上昇制御部(111)は、弁体としてのニードル(30)が閉弁状態である時にコイル電流の上昇を開始させ、コイル電流を目標値にまで上昇させるよう、コイル(70)への電力供給を制御する。推定部(115)は、コイル電流を目標値にまで上昇させた結果、可動コア(40)が移動して固定コア(60)に当接した以降もニードル(30)が慣性で移動し続けるオーバーシュートの挙動が現れた場合に、そのオーバーシュート量を推定する。目標値設定部(114)は、推定部(115)により推定されたオーバーシュート量が所定量以上であった場合に、次回以降の設定では今回の設定に比べて上記目標値を低下させる。
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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, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, 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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)