Distributor-less ignition system for an internal combustion engine
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorMartin Koelter
Life of this patent
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Abstract
A distributor-less ignition system for an internal combustion engine, having a control unit and an ignition coil coupled to the control unit. The ignition coil has a primary coil switched by the control unit and a secondary coil that has a terminal. A plurality of spark plugs are electrically connected at one end of the secondary coil to the same terminal of the secondary coil. A controllable semiconductor switch is respectively electrically connected between the terminal and each of the spark plugs. The semiconductor switch for the spark plug to be triggered is switched at least approximately at the same time by the control unit as the primary coil.
Claims8
An optical ignition device for use in a distributor-less ignition system for an internal combustion engine, the device comprising:
- a semiconductor switch including a plurality of optoelectronic semiconductor components wired in series and having a lead connectable to a high voltage;
- and
- a single common light-emitting element by which the semiconductor components are simultaneously activated, said plurality of optoelectronic semiconductor components being arranged around the single common light-emitting element at least approximately the same distance therefrom.
Dependencies are inferred from the claim text.