Ignition system and method for internal combustion engine

Details Ignition system and method for internal combustion engine Ignition system and method for internal combustion engine

1980-10-24

1983-10-25

Cox, Ronald B.

Internal-combustion engines

High tension ignition system

Current or voltage sensing in coil primary

123609, 123611, F02P 100

Patent

active

044112467

ABSTRACT:
An ignition system for the internal combustion engine is provided wherein a retard start timing and a conduction start timing are provided on the basis of an electrical signal produced from a pick-up coil. An ignition timing is provided at a time point following a retard time determined from the retard start timing in accordance with the engine operating conditions while advancing the retard start timing in accordance with the engine r.p.m. Before the lapse of a cut-off period of the ignition coil current required for producing a required ignition pulse, the cut-off state of the ignition coil current is maintained and the conduction start timing is prevented from advancing before the time point immediately following the lapse of the cut-off period.

REFERENCES:
patent: 4106447 (1978-08-01), West
patent: 4248200 (1981-02-01), Sugiura et al.
patent: 4280461 (1981-07-01), Okuda
patent: 4308848 (1982-01-01), Pfaff

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