EP 1931868 A1 20080618 - METHOD FOR ESTIMATING INSTANTANEOUS SPEED PRODUCED BY EACH OF THE CYLINDERS OF AN INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR ESTIMATING INSTANTANEOUS SPEED PRODUCED BY EACH OF THE CYLINDERS OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR SCHÄTZUNG DER VON JEDEM ZYLINDER EINES VERBRENNUNGSMOTORS ERZEUGTEN MOMENTANEN GESCHWINDIGKEIT
Title (fr)
METHODE D'ESTIMATION DU REGIME INSTANTANE PRODUIT PAR CHACUN DES CYLINDRES D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- FR 2006002127 W 20060918
- FR 0509624 A 20050920
Abstract (en)
[origin: WO2007034057A1] The invention concerns a method for estimating in real time the instantaneous speed produced by each of the cylinders of an internal combustion engine, based on a measurement of the instantaneous speed at the end of the engine transmission system. The method consists in constructing a physical model representing in real time the dynamics of the transmission system based on the crankshaft angle and coefficients of a serial Fourier decomposition of the instantaneous speed produced by each of the cylinders; in determining in real time said coefficients based on a coupling between the model and an adaptive type non-linear estimator; deducing therefrom said coefficients of the instantaneous speed produced by each of the cylinders. The average torque produced by each cylinder may also be deduced therefrom. The invention is applicable to engine controls.
IPC 8 full level
F02D 41/00 (2006.01); F02D 41/14 (2006.01); F02D 41/34 (2006.01)
CPC (source: EP US)
F02D 41/0097 (2013.01 - EP US); F02D 41/1497 (2013.01 - EP US); F02D 41/1402 (2013.01 - EP US); F02D 2041/1433 (2013.01 - EP US); F02D 2041/288 (2013.01 - EP US); F02D 2200/1004 (2013.01 - EP US)
Citation (search report)
See references of WO 2007034057A1
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
FR 2891012 A1 20070323; FR 2891012 B1 20110211; EP 1931868 A1 20080618; EP 1931868 B1 20130417; JP 2009509089 A 20090305; US 2008319725 A1 20081225; US 8024166 B2 20110920; WO 2007034057 A1 20070329
DOCDB simple family (application)
FR 0509624 A 20050920; EP 06808149 A 20060918; FR 2006002127 W 20060918; JP 2008531731 A 20060918; US 6752306 A 20060918