Contactless ignition control system with a dwell time control ci

Details Contactless ignition control system with a dwell time control ci Contactless ignition control system with a dwell time control ci

1977-09-22

1979-09-18

Myhre, Charles J.

Internal-combustion engines

Igniters

Incandescent

1231465A, 315209T, F02P 302, F02P 108, H05B 4136

Patent

active

041679270

ABSTRACT:
In a contactless ignition control system having a dwell time control circuit for an internal combustion engine, there is provided a speed responsive bias voltage circuit, a bias voltge switching circuit and a wave shaping circuit. The speed responsive bias voltage changes the switching level of the wave shaping circuit, thereby elongating the dwell time of the current flowing through an ignition coil.
In the dwell time control, when the ignition timing comes, the bias voltage switching circuit prevents application of the speed responsive bias voltage so that the ignition timing is made irrespective of the speed responsive bias voltage.

REFERENCES:
patent: 3294076 (1966-12-01), Mieras
patent: 3587551 (1971-06-01), Harrow
patent: 3797471 (1974-03-01), Schuette
patent: 3874355 (1975-04-01), Suda et al.
patent: 3881458 (1975-05-01), Roozenbeek et al.
patent: 3937193 (1976-02-01), Kim
patent: 4064859 (1977-12-01), Kashiwazaki

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