Internal-combustion engines – Igniters – Incandescent
Patent
1976-11-18
1978-12-05
Feinberg, Samuel
Internal-combustion engines
Igniters
Incandescent
F02P 304
Patent
active
041280911
ABSTRACT:
An electronic ignition controller operable from a Hall Effect pickup Device in a ballast-resistorless, inductive-type ignition system for an automotive vehicle internal combustion engine and featuring programmed dwell and automatic shut-down timer circuits, which control current dissipation in the ignition coil. The programmed dwell timer circuit enables energization of the ignition coil for a controlled or substantially constant period of time over substantially the entire range of engine operating speeds up to a predetermined high engine speed above which the ignition system reverts to a constant duty cycle characteristic determined by the character of the triggering input or pickup device. The automatic shut-down timer circuit operates to block the energization of the ignition coil if the controller remains in a state of conduction that maintains the ignition coil energized for a predetermined prolonged period of time that is greater than the actual dwell period or ON time of the coil at low engine or cranking speeds.
REFERENCES:
patent: 3297009 (1967-01-01), Sasaki et al.
patent: 3861370 (1975-01-01), Howard
patent: 3906920 (1975-09-01), Hemphill
patent: 3990417 (1976-11-01), Tershak
patent: 4036198 (1977-07-01), Howard
Balan Isadore
Kopera Joseph J.
Chrysler Corporation
Feinberg Samuel
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