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1. (WO2017091130) METHOD AND DEVICE FOR DETERMINING IN-CYLINDER PRESSURE OF A COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/091130 International Application No.: PCT/SE2016/051132
Publication Date: 01.06.2017 International Filing Date: 17.11.2016
IPC:
G01L 23/32 (2006.01) ,F02D 35/00 (2006.01) ,F02D 41/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
23
Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
26
Details or accessories
32
Apparatus specially adapted for recording pressure changes measured by indicators
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
35
Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for
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
Applicants:
SCANIA CV AB [SE/SE]; 151 87 Södertälje, SE
Inventors:
STENLÅÅS, Ola; SE
NORDIN, Mikael; SE
RUGLAND, Christian; SE
Agent:
GARDEMARK, Niklas; SE
Priority Data:
1551519-023.11.2015SE
1551525-724.11.2015SE
Title (EN) METHOD AND DEVICE FOR DETERMINING IN-CYLINDER PRESSURE OF A COMBUSTION ENGINE
(FR) PROCÉDÉ ET DISPOSITIF PERMETTANT DE DÉTERMINER LA PRESSION DANS LE CYLINDRE D'UN MOTEUR À COMBUSTION
Abstract:
(EN) Methods and devices for processing a signal generated by a sensor (7) adapted to sense pressure variations generated in a cylinder (61- 66) of a combustion engine (1) are described. The sensor is mounted on the combustion engine outside the cylinder. The sensor signal is low-pass filtered (201) forming at least a part of an in-cylinder pressure curve, and the in-cylinder pressure curve is scaled using a model of the compression in the cylinder forming a scaled pressure curve of the at least a part of the in-cylinder pressure curve.
(FR) L'invention concerne des procédés et des dispositifs permettant de traiter un signal généré par un capteur (7) conçu pour détecter des variations de pression générées dans un cylindre (61- 66) d'un moteur à combustion (1). Le capteur est monté sur le moteur à combustion à l'extérieur du cylindre. Le signal de capteur est filtré passe-bas (201) en formant au moins une partie d'une courbe de pression dans le cylindre, et la courbe de pression dans le cylindre est mise à l'échelle au moyen d'un modèle de la compression dans le cylindre en formant une courbe de pression mise à l'échelle de ladite partie de la courbe de pression dans le cylindre.
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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, 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: English (EN)
Filing Language: English (EN)
Also published as:
DE112016004758