Internal combustion engine spark scheduling

Details Internal combustion engine spark scheduling Internal combustion engine spark scheduling

1998-05-29

2000-01-11

Argenbright, Tony M.

Internal-combustion engines

Spark ignition timing control

Electronic control

1234066, 12340658, F02P 515

Patent

active

06012427&

ABSTRACT:
The present invention relates to apparatus for scheduling the ignition sparks for a spark ignition internal combustion engine. An ignition system for a spark ignition engine, includes a device for generating a series of pulses (12) upon each revolution of a crankshaft (1) and a device (8,118) for identifying pulses in the series relative to a top dead center position (TDC) for the engine, one or more ignition coils and a device to charge a coil and then to discharge the coil to generate an ignition spark at a desired spark angle (54) relative to the top dead center position (TDC). The ignition system identifies a first particular pulse (60) occurring after the charging starts and before the discharging begins, and calculates a first interval (I.sub.D) from the first particular pulse (60) so that the discharging happens proximate the desired spark angle (54).

REFERENCES:
patent: 3915131 (1975-10-01), Brungsberg
patent: 4426974 (1984-01-01), Nash
patent: 4487183 (1984-12-01), Petrie
patent: 5099811 (1992-03-01), Frantz et al.
patent: 5184590 (1993-02-01), Hashimoto et al.
patent: 5467752 (1995-11-01), Murao et al.

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