Global Patent Index - EP 1103720 A2

EP 1103720 A2 2001-05-30 - Method and device for the control of the current in an ignition system of a combustion engine

Title (en)

Method and device for the control of the current in an ignition system of a combustion engine

Title (de)

Verfahren und Vorrichtung zur Stromregelung einer Zündanlage für einen Verbrennungsmotor

Title (fr)

Procédé et dispositif pour la commande du courant d'un circuit d'allumage de moteur à combustion

Publication

EP 1103720 A2 (DE)

Application

EP 00125290 A

Priority

DE 19957350 A

Abstract (en)

The method involves storing electrical energy in a magnetic field built up by a primary current, whereby the field breaks down when the primary current is interrupted and a high ignition voltage is generated by induction. A control signal gives the desired value for the primary current and the primary current is limited to this value by a current regulator. Independent claims are also included for the following: an arrangement for current regulation of an ignition system for an internal combustion engine.

Abstract (de)

Es wird ein Verfahren und eine Vorrichtung zur Stromregelung einer Zündanlage für einen Verbrennungsmotor beschrieben. Bei dem erfindungsgemäßen Verfahren erfolgt statt einer zeitlichen Steuerung des Primärstromes eine Regelung des Primärstromes. Ein Steuersignal (1) gibt hierbei den Sollwert des gewünschten Primärstroms wieder. Das Steuersignal ist vorzugsweise pulsweitenmoduliert, wobei das Tastverhältnis den gewünschten Sollwert des Primärstromes und die Dauer des Steuersignales die gewünschte Ladezeit angibt. Bei der erfindungsgemäßen Vorrichtung ist neben einem Zündtransistor (Z) ein Ladetransistor (L) zur Regelung des Primärstroms vorgesehen. <IMAGE>

IPC 1-7 (main, further and additional classification)

F02P 17/12

IPC 8 full level (invention and additional information)

F02P 17/12 (2006.01)

CPC (invention and additional information)

F02P 17/12 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

EP 1103720 A2 20010530; EP 1103720 A3 20020605; EP 1103720 B1 20070516; DE 50014331 D1 20070628

INPADOC legal status


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