Ignition system dwell control

Details Ignition system dwell control Ignition system dwell control

1988-08-01

1989-06-06

Dolinar, Andrew M.

Internal-combustion engines

High tension ignition system

Having dwell control

123644, F02P 3045

Patent

active

048361755

ABSTRACT:
A control circuit for developing a digital signal for use in a closed loop dwell control of an electronic internal combustion engine ignition system. The circuit has a ramp counter and a down-counter. The ramp counter counts-up clock pulses for a period of time beginning when the primary winding of an ignition coil is energized and ending when primary winding current increases to a sensed current limit value. When current limit is reached, the most significant bits of the count in the ramp counter are loaded into the down-counter. The ramp counter is now counted-up and the down-counter is counted-down until the down-counter underflows. The final or ultimate count magnitude in the ramp counter is equal to the count attained by the ramp counter between energization of the primary winding and attainment of current limit added to a fixed percentage of the count attained by the ramp counter.

REFERENCES:
patent: 4018202 (1977-04-01), Gartner
patent: 4248195 (1981-02-01), Gorille
patent: 4359036 (1982-11-01), Seeger et al.
patent: 4378778 (1983-04-01), Harter
patent: 4711226 (1987-12-01), Neuhalfen et al.
patent: 4750467 (1988-06-01), Neuhalfen

Affiliated with

Also associated with

Rating

Ignition system dwell control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ignition system dwell control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ignition system dwell control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-32784