Ignition control system with closure angle independent of residu

Details Ignition control system with closure angle independent of residu Ignition control system with closure angle independent of residu

1979-06-20

1981-05-05

Myhre, Charles J.

Internal-combustion engines

Charge forming device

Fuel injection system

123406, F02D 100

Patent

active

042652049

ABSTRACT:
The closure angle of an interrupter switch connected in series with the primary winding of an ignition coil is varied as a predetermined function of engine speed by charging and discharging of an integrator circuit which in turn changes the cut-in threshold of a threshold circuit controlling the operation of the interrupter switch. When the spark repetition rate becomes sufficiently high for residual energy to be stored in the coil when the interrupter switch closes, this type of control results in an undesired decrease of closure angle. Therefore, in the present system, the operation of the charging circuit for the integrator circuit is always delayed until the current through the primary winding reaches a predetermined minimum value exceeding the maximum possible residual current in the primary winding when the interrupter switch first closes. The charging circuit thus always operates from the same initial condition, preventing undesired changes in the closure angle at high speeds.

REFERENCES:
patent: 3937193 (1976-02-01), Kim
patent: 4036200 (1977-07-01), Kuehn
patent: 4088927 (1978-05-01), Adler et al.
patent: 4136659 (1979-06-01), Smith
patent: 4174696 (1979-11-01), Jundt et al.
patent: 4176645 (1979-12-01), Jundt et al.

Affiliated with

Also associated with

Rating

Ignition control system with closure angle independent of residu 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 control system with closure angle independent of residu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ignition control system with closure angle independent of residu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-291836