EP 2906801 A1 20150819 - METHOD FOR ADJUSTING AN INJECTION BEHAVIOR OF INJECTORS IN AN INTERNAL COMBUSTION ENGINE, ENGINE CONTROL UNIT AND SYSTEM FOR ADJUSTING AN INJECTION BEHAVIOR
Title (en)
METHOD FOR ADJUSTING AN INJECTION BEHAVIOR OF INJECTORS IN AN INTERNAL COMBUSTION ENGINE, ENGINE CONTROL UNIT AND SYSTEM FOR ADJUSTING AN INJECTION BEHAVIOR
Title (de)
VERFAHREN ZUR ANGLEICHUNG EINES EINSPRITZVERHALTENS VON INJEKTOREN IN EINEM VERBRENNUNGSMOTOR, MOTORSTEUERGERÄT UND SYSTEM ZUR ANGLEICHUNG EINES EINSPRITZVERHALTENS
Title (fr)
PROCÉDÉ D'AJUSTEMENT DES CARACTÉRISTIQUES D'INJECTION DES INJECTEURS DANS UN MOTEUR À COMBUSTION INTERNE, DISPOSITIF DE COMMANDE DE MOTEUR ET SYSTÈME D'AJUSTEMENT DES CARACTÉRISTIQUES D'INJECTION
Publication
Application
Priority
- DE 102012020489 A 20121010
- EP 2013002995 W 20131004
Abstract (en)
[origin: WO2014056595A1] The invention relates to a method for adjusting an injection behavior of injectors in an internal combustion engine, comprising the following steps: switching off an injector; detecting a crank angle signal of the internal combustion engine; transforming the crank angle signal into the frequency range by means of a discrete Fourier transformation; detecting and storing aquantity of the harmonic of the 0.5th order of the Fourier transform of the crank angle signal, and assigning the quantity to the switched-off injector; switching on the switched-off injector; performing the previous steps sequentially for all injectors of the internal combustion engine; forming an average value of the stored quantities with respect to all injectors, and correcting thecontrol of the injectors using a deviation from the average value of a quantity associated with an injector that is to be corrected.
IPC 8 full level
F02D 41/00 (2006.01); F02D 41/24 (2006.01); F02D 41/28 (2006.01)
CPC (source: EP US)
F02D 41/0085 (2013.01 - EP US); F02D 41/009 (2013.01 - US); F02D 41/04 (2013.01 - US); F02D 41/2438 (2013.01 - EP US); F02D 41/263 (2013.01 - US); F02D 41/30 (2013.01 - US); F02M 65/001 (2013.01 - US); F02D 41/0087 (2013.01 - EP US); F02D 41/2467 (2013.01 - EP US); F02D 2041/288 (2013.01 - EP US)
Citation (search report)
See references of WO 2014056595A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102012020489 A1 20140410; DE 102012020489 B4 20140430; CN 104854331 A 20150819; CN 104854331 B 20170905; EP 2906801 A1 20150819; HK 1213618 A1 20160708; US 2015211430 A1 20150730; US 9664134 B2 20170530; WO 2014056595 A1 20140417
DOCDB simple family (application)
DE 102012020489 A 20121010; CN 201380053136 A 20131004; EP 13773618 A 20131004; EP 2013002995 W 20131004; HK 16101598 A 20160215; US 201514683636 A 20150410