EP 2321524 B1 20170125 - DEVICE FOR MEASURING THE IONIZATION CURRENT IN A RADIOFREQUENCY IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
DEVICE FOR MEASURING THE IONIZATION CURRENT IN A RADIOFREQUENCY IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
VORRICHTUNG ZUM MESSEN DES IONISIERUNGSSTROMS IN EINEM HOCHFREQUENZZÜNDSYSTEM FÜR EINEN VERBRENNUNGSMOTOR
Title (fr)
DISPOSITIF DE MESURE DU COURANT D'IONISATION DANS UN SYSTEME D'ALLUMAGE RADIOFREQUENCE POUR UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- FR 2009051529 W 20090730
- FR 0856056 A 20080909
Abstract (en)
[origin: WO2010029238A1] The invention relates to a device for the radiofrequency ignition of an internal combustion engine, made up of a power supply circuit (2) comprising a transformer (T) a secondary winding of which is connected to at least one resonator (1) that has a resonant frequency in excess of 1 MHz and comprising two electrodes able to generate a spark to initiate combustion of a combustible mixture in a cylinder of the engine in response to an ignition command, characterized in that it comprises: - a measuring capacitor (CMES) connected in series between the secondary winding and the resonator, - a measurement circuit (40) for measuring a current (IION) at the terminals of the said measuring capacitor, the said current providing an electrical image of how combustion is progressing, - a protection circuit (30) connected between the capacitor and the measurement circuit and designed to spare the said current measurement acquisition time from the electrical effects caused by the ignition command.
IPC 8 full level
F02P 9/00 (2006.01); F02P 17/12 (2006.01); F02P 23/04 (2006.01)
CPC (source: EP KR US)
F02P 9/00 (2013.01 - KR); F02P 9/007 (2013.01 - EP US); F02P 17/12 (2013.01 - EP KR US); F02P 23/04 (2013.01 - EP KR US); F02P 2017/006 (2013.01 - EP KR US); F02P 2017/125 (2013.01 - EP US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
FR 2935759 A1 20100312; FR 2935759 B1 20100910; BR PI0918792 A2 20161025; CN 102177334 A 20110907; CN 102177334 B 20131016; EP 2321524 A1 20110518; EP 2321524 B1 20170125; JP 2012502225 A 20120126; JP 5393792 B2 20140122; KR 101588015 B1 20160125; KR 20110071083 A 20110628; MX 2011002524 A 20110404; RU 2011113829 A 20121020; RU 2500915 C2 20131210; US 2011247599 A1 20111013; US 9010179 B2 20150421; WO 2010029238 A1 20100318
DOCDB simple family (application)
FR 0856056 A 20080909; BR PI0918792 A 20090730; CN 200980140000 A 20090730; EP 09740412 A 20090730; FR 2009051529 W 20090730; JP 2011526533 A 20090730; KR 20117008204 A 20090730; MX 2011002524 A 20090730; RU 2011113829 A 20090730; US 200913063112 A 20090730