Method and apparatus for controlling ignition timing in a multic

Details Method and apparatus for controlling ignition timing in a multic Method and apparatus for controlling ignition timing in a multic

1983-01-20

1984-11-06

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123425, 123417, 123415, F02P 504

Patent

active

044806159

ABSTRACT:
Engine operating parameters are detected to set a basic ignition timing, and this basic ignition timing is forcibly changed to effect feedback control in which an engine output parameter is detected for finding an optimum combination of ignition timings of the individual cylinders. The ignition timing for all the cylinders is uniformly changed for a predetermined period of time so that engine output increases, and then ignition timing is individually controlled for each of the cylinders so that ignition timing of each cylinder is optimum. The engine is operated with a plurality of different ignition timing combinations, where the number of the combinations equals the number of the cylinders plus one. The average value of various ignition timings of the plurality of combinations is calculated, and the combination giving the lowest engine output parameter is detected. A new ignition timing combination is set so that engine output increases, and the combination giving the lowest engine output parameter is replaced by the new combination so that a new set of the plurality of ignition timing combinations is provided. In this way the ignition timing combination is renewed successively for finding the optimum ignition timing combination.

REFERENCES:
patent: 4131097 (1978-12-01), Sawada et al.
patent: 4153019 (1979-05-01), Laubenstein et al.
patent: 4166440 (1979-09-01), Helava et al.
patent: 4243007 (1981-01-01), Ehrhardt et al.
patent: 4331117 (1982-05-01), Ginsburgh
patent: 4378004 (1983-03-01), Petrie
patent: 4403584 (1983-09-01), Suzuki et al.

Affiliated with

Also associated with

Rating

Method and apparatus for controlling ignition timing in a multic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling ignition timing in a multic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling ignition timing in a multic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1037956