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1. (WO2017134363) METHOD FOR RESETTING TWO PRESSURE SENSORS IN AN AIR-INTAKE LINE OF AN ENGINE WITH SENSOR FAULT PREVENTION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134363 International Application No.: PCT/FR2017/050140
Publication Date: 10.08.2017 International Filing Date: 24.01.2017
IPC:
F02D 41/24 (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
24
characterised by the use of digital means
Applicants:
PSA AUTOMOBILES S.A. [FR/FR]; 2-10 boulevard de l'Europe 78300 Poissy, FR
Inventors:
QUIE, Philippe; FR
LEMIERE, Julien; FR
CHARRIER, Jean Louis; FR
Agent:
BOURGUIGNON, Eric; FR
Priority Data:
165088204.02.2016FR
Title (EN) METHOD FOR RESETTING TWO PRESSURE SENSORS IN AN AIR-INTAKE LINE OF AN ENGINE WITH SENSOR FAULT PREVENTION
(FR) PROCÉDÉ DE RECALAGE DE DEUX CAPTEURS DE PRESSION DANS UNE LIGNE D'ADMISSION D'AIR D'UN MOTEUR AVEC PRÉVENTION D'UN DÉFAUT CAPTEUR
Abstract:
(EN) The invention concerns a method for resetting at least two pressure sensors (Capatm, Capsural, Capadmi) positioned in an air-intake line of an internal combustion engine, the resetting compensation being calculated for at least one second sensor (Capsural, Capadmi) with respect to a first pressure sensor (Capatm) acting as a reference sensor between the respective pressure measurements of same at a so-called initial temperature of the sensors when the engine is stopped. Before applying the resetting compensation to said at least one second sensor (Capsural, Capadmi), an internal diagnostic step is carried out based on the value of the resetting compensation, consisting or determining whether the resetting compensation exceeds a maximum compensation value, in which case it is diagnosed that one of said at least two sensors is faulty. In this case, application of the resetting compensation is suspended.
(FR) L'invention concerne un procédé de recalage d'au moins deux capteurs (Capatm, Capsural, Capadmi) de pression positionnés dans une ligne d'admission d'air d'un moteur à combustion interne, la compensation de recalage étant calculée pour au moins un deuxième capteur (Capsural, Capadmi) par rapport à un premier capteur (Capatm) de pression servant de capteur de référence entre leurs mesures de pression respectives à une température dite initiale des capteurs lors d'un arrêt du moteur. Il est effectué, préalablement à l'application de la compensation de recalage sur ledit au moins un deuxième capteur (Capsural, Capadmi), une étape de diagnostic interne basé sur la valeur de la compensation de recalage consistant à déterminer si la compensation de recalage dépasse une valeur de compensation maximale, auquel cas il est diagnostiqué qu'un desdits au moins deux capteurs est défaillant. Dans ce cas, l'application de la compensation de recalage est suspendue.
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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 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: French (FR)
Filing Language: French (FR)
Also published as:
FR3047518CN108474314EP3411580