Start-to-run circuit for an electronic ignition system

Details Start-to-run circuit for an electronic ignition system Start-to-run circuit for an electronic ignition system

1976-07-02

1978-07-18

Myhre, Charles J.

Internal-combustion engines

Igniters

Incandescent

123139BG, 123148E, F02P 1100, F02P 900, F02P 1500

Patent

active

041009070

ABSTRACT:
In an electronic ignition system for controlling engine spark and firing thereof, a circuit is provided for causing the current through the ignition coil to have a greater value during starting of the engine than the current therethrough when the engine is running normally. The circuit is operated in conjunction with control of a current interrupt circuit of the ignition system. Moreover, the start-to-run circuit prevents premature engine spark, which might otherwise occur if the ignition system is switched from a start mode to a run mode just prior to desired engine firing, by controlling the transition time of the current through the coil from the start value to run value.

REFERENCES:
patent: 2173869 (1939-09-01), Weston
patent: 2888914 (1959-06-01), Sherman
patent: 3180997 (1965-04-01), Short et al.
patent: 3620200 (1971-11-01), Stephens
patent: 3745985 (1973-07-01), Hohne
patent: 3854466 (1974-12-01), Steinberg et al.
patent: 4036199 (1977-07-01), Chateau
patent: 4041912 (1977-08-01), Sessions
patent: 4043302 (1977-08-01), Sessions

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