Ignition control apparatus for internal combustion engine

Details Ignition control apparatus for internal combustion engine Ignition control apparatus for internal combustion engine

2006-06-13

2006-06-13

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S406590

Reexamination Certificate

active

07059300

ABSTRACT:
An ignition control apparatus for an internal combustion engine for preventing ignition control upon occurrence of rotation reversal of the engine includes a rotation sensor (3) disposed in opposition to projections (11, 12) of a rotor (1), and an ignition timing control circuit (4) for fetching a rotation sensor signal (R) as a reference angular position signal to output a driving signal (P) to the ignition circuit (6). A retarded ignition control module (46) of the control circuit (4) measures a period of a specific interval of the sensor signal (R) while generating a driving signal (P) in dependence on the specific interval period. An arithmetic module (46) of the retarded ignition control module (46) sets an expectation period for accepting a succeeding sensor signal on the basis of the specific interval period to validate only the signal inputted during the expectation period.

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patent: 07-229463 (2000-12-01), None

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