Robert Boschgmbh

Lothar Puettmann

Walter Gollin

Juergen Foerster

Markus Ketterer

Hubert Bischof

Bernhard Eisele

Jochen Reiter

Frank Hacklaender

A method for operating a multi-spark ignition system in an engine system includes: receiving time information regarding a multi-spark phase; cyclical charging of an ignition coil of an ignition device, and discharging of the ignition coil via a spark plug of the ignition device during the multi-spark phase; the charging and/or discharging of the ignition coil taking place as a function of a current flow in the ignition coil.

Method for operating a multi-spark ignition system, and multi-spark ignition system

An inductive ignition apparatus for a combustion engine includes a measurement device for ascertaining the ionization current at the spark plug of each cylinder, and includes for each spark plug an ignition coil device which forms the ignition high voltage, operates on the transformer principle, and has a primary and a secondary winding, and through whose secondary winding the ionization current flows. A switch is provided which short-circuits the primary winding for the duration of the ionization current measurement.

Igniting system with a device for measuring the ion current

An ignition system for internal combustion engines, which have means for detecting the secondary voltage transformed to the primary side of an ignition coil, the signal detected by these means being fed to an evaluation device. The evaluation device determines the damping of the voltage signal after the end of sparking, this damping representing a measure for the magnitude of the shunt resistance on the secondary side.

Ignition system for an internal combustion engine

Growing community of inventors

Weissach, Germany

Lothar Puettmann