Ignition apparatus for internal combustion engines

Details Ignition apparatus for internal combustion engines Ignition apparatus for internal combustion engines

1984-09-13

1985-12-31

Nelli, Raymond A.

Internal-combustion engines

High tension ignition system

Having engine component position sensor

123651, F02P 504

Patent

active

045614121

ABSTRACT:
An ignition apparatus for internal combustion engines for preventing input noises out of an ignition signal line from affecting the ignition timing of the engine to make knocking or a start malfunction. A bistable circuit is provided for eliminating such input noises. The bistable circuit is associated with a Schmitt circuit which serves to energize or de-energize an ignition coil for inducing a discharging voltage. The Schmitt circuit is overridden by the bistable circuit for a time interval corresponding to a time for which such input noises exist. Afterwards, the Schmitt circuit receives as an input the ignition signal synchronizing with an engine speed and controls the ignition timing.

REFERENCES:
patent: 3564581 (1965-01-01), Winterbarn
patent: 3985109 (1976-10-01), Kondo et al.
patent: 4359038 (1982-11-01), Xiberas
patent: 4459968 (1984-07-01), Brandt et al.
patent: 4494518 (1985-01-01), Katayama et al.

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