Engine ignition system

Details Engine ignition system Engine ignition system

1982-06-29

1984-07-03

Dolinar, Andrew M.

Internal-combustion engines

High tension ignition system

Having engine component position sensor

123617, 123643, F02P 900

Patent

active

044572867

ABSTRACT:
An engine ignition system connected between an engine crank and ignition coils includes a reference position signal generating device having reference position sensors, and a crank angle sensing device. The ignition system also includes a signal processing device which receives both the reference position signals and crank angle signals, and when one of the reference position signals is absent continues to generate ignition control signals which activate the ignition coils. The signal processing device includes a counter which counts the crank angle signals and which is reset by the reference position signals, and a decoder which produces a signal when a count value reaches a predetermined count. The signal processing device also includes a logic circuit and a flip-flop for producing either primary ignition control signals or replacement ignition control signals. The replacement ignition control signals are generated when one of the reference position signals is absent.

REFERENCES:
patent: 4265211 (1981-05-01), Meloeny
patent: 4317437 (1982-03-01), Lindgren
patent: 4378004 (1983-03-01), Petrie

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