Ignition timing control system

Details Ignition timing control system Ignition timing control system

1976-10-18

1978-07-04

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123117R, 1231465A, 123148E, F02P 100, F02P 504

Patent

active

040982432

ABSTRACT:
An ignition timing control system comprises a sensor for detecting a reference point of the crankshaft of an internal combustion engine in synchronism with the rotation of the crankshaft, a speed detector for detecting the rotational speed of the crankshaft, a processor responsive to an interruption request by the reference signal from the sensor for temporarily stopping the computational operation being executed at that time and computing a time period from the time of the interruption request to the point of ignition in accordance with a desired spark advance value and the speed signal from the speed detector to produce the corresponding computed value, and an ignition command circuit for applying an ignition command signal to the ignition system of the engine at the expiration of a time corresponding to the computed value from the processor.

REFERENCES:
patent: 3738339 (1973-06-01), Huntzinger et al.
patent: 3904856 (1975-09-01), Monpetit
patent: 3921610 (1975-11-01), Hartig
patent: 3942491 (1976-03-01), Seite et al.
patent: 3990417 (1976-11-01), Tershak
patent: 3998193 (1976-12-01), Ives et al.
patent: 4018197 (1977-04-01), Salway

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