| 摘要 |
In an internal combustion engine of the type including an ignition system comprising an ignition coil having primary and secondary windings, a battery, a set of points, and one or more spark plugs, there is disclosed a system for electronically limiting the engine RPM's. The system operates to limit the high voltage spike generated within the primary winding of the ignition coil to a value which is insufficient to cause ignition whenever the time between consecutive point openings is less than a predetermined time interval. By limiting the amplitude of the spike rather than shorting the primary winding, each point opening is examined on an individual basis with respect to its time of occurrence after the previous opening.
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