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1. (WO2017182724) METHOD FOR OPTIMISING A HEAT ENGINE RESTART TIME BY CONTROLLING THE PRESSURE IN AN INJECTION RAIL
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Pub. No.: WO/2017/182724 International Application No.: PCT/FR2017/050619
Publication Date: 26.10.2017 International Filing Date: 17.03.2017
IPC:
F02D 41/04 (2006.01) ,F02M 63/02 (2006.01) ,F02D 41/38 (2006.01) ,F02N 11/08 (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
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
02
Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
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
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
N
STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
11
Starting of engines by means of electric motors
08
Circuits specially adapted for starting of engines
Applicants:
PSA AUTOMOBILES S.A. [FR/FR]; 2-10 boulevard de l'Europe 78300 Poissy, FR
Inventors:
BOUCRAUT, Sebastien; FR
ALLIEZ, Jean Jacques; FR
ANFRAY, Guillaume; FR
Agent:
BOURGUIGNON, Eric; FR
Priority Data:
165342819.04.2016FR
Title (EN) METHOD FOR OPTIMISING A HEAT ENGINE RESTART TIME BY CONTROLLING THE PRESSURE IN AN INJECTION RAIL
(FR) PROCEDE D'OPTIMISATION D'UN TEMPS DE REDEMARRAGE D'UN MOTEUR THERMIQUE PAR PILOTAGE DE LA PRESSION DANS UN RAIL D'INJECTION
Abstract:
(EN) The invention relates to a method for optimising a motor vehicle heat engine restart time, the heat engine being associated with a pressurised fuel injection rail, the pressure in the injection rail necessarily being above a threshold that can be calibrated in order to authorise injection during the restart phase of the heat engine after a stoppage period of the heat engine during which the pressure in the injection rail drops from a so-called initial pressure setpoint (Cons Prail ini) at the start of the stoppage of the heat engine. The initial pressure setpoint (Cons Prail ini) is determined as a function of a difference (∆T) between the temperatures of the injection rail (Trail) and the heat engine (Tmot), and the pressure in the injection rail when the engine is stopped is forcibly increased until reaching the initial pressure setpoint (Cons Prail ini).
(FR) L'invention concerne un procédé d'optimisation d'un temps de redémarrage d'un moteur thermique de véhicule automobile, le moteur thermique étant associé à un rail d'injection de carburant sous pression, la pression dans le rail d'injection devant être au-dessus d'un seuil calibrable pour autoriser l'injection pendant la phase de redémarrage du moteur thermique suivant une durée d'arrêt du moteur thermique pendant laquelle la pression dans le rail d'injection diminue à partir d'une consigne de pression dite initiale (Cons Prail ini) en début d'arrêt du moteur thermique. La consigne de pression initiale (Cons Prail ini) est déterminée en fonction d'une différence (∆T) entre des températures du rail d'injection (Trail) et du moteur thermique (Tmot) et il est effectué une augmentation forcée de la pression dans le rail d'injection régnante à l'arrêt du moteur jusqu'à obtenir la consigne de pression initiale (Cons Prail ini).
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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, JP, 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: French (FR)
Filing Language: French (FR)