Ignition system for internal combustion engines

Details Ignition system for internal combustion engines Ignition system for internal combustion engines

1991-10-03

1993-12-28

Raevis, Robert

Measuring and testing

Test stand

For engine

G01M 1500

Patent

active

052729141

ABSTRACT:
An ignition system for internal combustion engines has an ignition coil having a primary winding and a secondary winding. The secondary winding supplies a high voltage for ignition to an ignition plug when the ignition coil is energized at the primary winding at a predetermined period. A voltage producing circuit produces a voltage on the basis of a signal developed across the primary winding when the primary winding is energized at a predetermined period. The voltage causes discharge across the electrodes of the ignition plug to form a path for an ion current developed in the cylinder. A comparator or detector detects the ion current to determine the combustion in a cylinder.

REFERENCES:
patent: 4359893 (1982-11-01), Kizler et al.
patent: 4601193 (1986-07-01), Blauhut et al.
patent: 4648367 (1987-03-01), Gillbrand et al.
patent: 4672928 (1987-06-01), Hartig
patent: 4762106 (1988-08-01), Blauhut
patent: 4987771 (1991-01-01), Iwata

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