F - Mech Eng,Light,Heat,Weapons – 02 – P
Patent
F - Mech Eng,Light,Heat,Weapons
02
P
317/5.3
F02P 3/04 (2006.01) F02P 3/045 (2006.01) F02P 7/07 (2006.01)
Patent
CA 1084108
HALL EFFECT ELECTRONIC IGNITION CONTROLLER WITH PROGRAMMED DWELL AND AUTOMATIC SHUT-DOWN TIMER CIRCUITS Abstract An electronic ignition controller operable from a Hall Effect pickup Device in a ballast-resistorless, indutive-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 char- acteristic 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.
271542
Balan Isadore
Kopera Joseph J. Jr.
Chrysler Corporation
Macrae & Co.
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