Robert Boschgmbh

Hansjorg Manger

Gerhard Sohner

Gerd Hohne

To provide a first accurately timed ignition impulse for any one ignition event, and then, selectively, one or more ignition pulses, in accordance with sensed or existing operating parameters of the engine, a first ignition pulse is generated, accurately, in accordance with timing as determined by an ignition timing stage; a frequency generator is selectively enabled upon the presence or absence of operating parameters at certain values to provide sequential ignition pulses after the first, accurately timed ignition pulse has been provided.

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Schwieberdingen, Germany

Hansjorg Manger