Dynamic ignition apparatus

Details Dynamic ignition apparatus Dynamic ignition apparatus

1982-08-02

1985-09-03

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Having dwell control

F02P 304

Patent

active

045385858

ABSTRACT:
A digital and linear dynamic ignition control apparatus comprising a burn-time counter, a pre-dwell counter, a current limit counter, engine speed detection apparatus, a biasing circuit and an excess current limit circuit is provided for controlling the start of a dwell in each ignition period. In operation, a current limit adjust window is established for each period. The time of the termination of a dwell in the period relative to the current limit adjust window established for the period starts the dwell in the next period relative to the beginning of the next period at a time calculated to optimize engine performance and minimize energy losses. In general, rapid acceleration in a period starts the dwell earlier in the next period to insure adequate charging of the ignition coil. Conversely, rapid deceleration in a period starts the dwell later in the next period to minimize energy losses.

REFERENCES:
patent: 4298941 (1981-11-01), Furuhashi
patent: 4329970 (1982-05-01), Mowery
patent: 4368717 (1983-01-01), Roberts et al.

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