EP 1729000 A1 20061206 - Method for estimating the air/fuel ratio in a cylinder of an internal combustion engine using an extended Kalman filter
Title (en)
Method for estimating the air/fuel ratio in a cylinder of an internal combustion engine using an extended Kalman filter
Title (de)
Auf einem erweiterten Kalmanfilter basiertes Verfahren zur Abschätzung des Kraftstoff/Luft-Verhältnisses in einem Zylinder eines Verbrennungsmotors
Title (fr)
Méthode d'estimation par un filtre de Kalman étendu de la richesse dans un cylindre d'un moteur à combustion
Publication
Application
Priority
FR 0505443 A 20050530
Abstract (en)
The method for estimating the richness of the fuel mixture in the cylinders of an i.c. engine with a sensor (SR) located after its exhaust manifold (CE) consists of defining an estimate of the richness measured by the sensor, modelling the transfer function of the sensor, and establishing a physical model in real time of the gases ejected from the cylinders. The model is connected to an extended Kalman-type non-linear estimator, which is used to estimate a real-time value for the fuel mixture richness in each of the cylinders.
IPC 8 full level
F02D 41/14 (2006.01); F02D 41/34 (2006.01)
CPC (source: EP US)
F02D 41/008 (2013.01 - EP US); F02D 41/1458 (2013.01 - EP US); F02D 41/1408 (2013.01 - EP US); F02D 41/1454 (2013.01 - EP US); F02D 2041/1416 (2013.01 - EP US); F02D 2041/1417 (2013.01 - EP US); F02D 2041/143 (2013.01 - EP US); F02D 2041/1431 (2013.01 - EP US)
Citation (applicant)
FR 2834314 A1 20030704 - PEUGEOT CITROEN AUTOMOBILES SA [FR]
Citation (search report)
- [A] US 2005022797 A1 20050203 - IKEMOTO NORIAKI [JP], et al
- [A] EP 0688945 A2 19951227 - HONDA MOTOR CO LTD [JP]
- [A] EP 0553570 A2 19930804 - HONDA MOTOR CO LTD [JP]
- [A] US 6357429 B1 20020319 - CARNEVALE CLAUDIO [FR], et al
Designated contracting state (EPC)
DE GB IT
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1729000 A1 20061206; EP 1729000 B1 20080702; DE 602006001609 D1 20080814; FR 2886346 A1 20061201; FR 2886346 B1 20100827; JP 2006336645 A 20061214; JP 4703488 B2 20110615; US 2006271270 A1 20061130; US 7581535 B2 20090901
DOCDB simple family (application)
EP 06290557 A 20060403; DE 602006001609 T 20060403; FR 0505443 A 20050530; JP 2006149261 A 20060530; US 43762906 A 20060522