Digital timing system for spark advance

Details Digital timing system for spark advance Digital timing system for spark advance

1980-08-27

1983-10-04

Gruber, Felix D.

Boots, shoes, and leggings

123416, 123418, 36443112, F02P 514, G06M 302

Patent

active

044082967

ABSTRACT:
A means to set spark timing in accordance with engine speed includes a counter to count clock pulses between engine speed reference pulses. A read-only memory has successive memory locations storing an addend quantity and a repeats number. An adder unit, including an accumulator, operates to access the memory locations, and to add the addend quantities to the contents of the accumulator repeatedly a number of times equal to the respective repeats numbers. A comparator produces an ignition firing pulse when the contents of the accumulator corresponds with the reference period number provided by the counter. Improved memory addressing means facilitates altering the spark advance in accordance with a sensed condition such as manifold vacuum, and conserves memory space.

REFERENCES:
patent: 3906207 (1975-09-01), Rivere et al.
patent: 3964443 (1976-06-01), Hartford
patent: 4009378 (1977-02-01), Sakamoto
patent: 4018197 (1977-04-01), Salway
patent: 4036190 (1977-07-01), Bigliani et al.
patent: 4249493 (1981-02-01), Honig et al.
patent: 4262644 (1981-04-01), Walker et al.
patent: 4284045 (1981-08-01), Maier
patent: 4296471 (1981-10-01), Goux

Affiliated with

Also associated with

Rating

Digital timing system for spark advance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital timing system for spark advance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital timing system for spark advance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-977117