Internal combustion engine function control system

Details Internal combustion engine function control system Internal combustion engine function control system

1982-05-19

1984-12-04

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123414, F02P 504

Patent

active

044857853

ABSTRACT:
An ignition system comprises a ferro-magnetic disc mounted on the distributor shaft and provided with four pairs of protuberances, the spacing of the two protuberances of each pair corresponding to maximum and minimum spark advance positions. The protuberances are detected by a first variable reluctance pick-up of fixed position and a second variable reluctance pick-up angularly movable by an engine load sensor. The two pick-ups, are connected respectively to two signal generators which produce a rectangular waveform of fixed phase and a rectangular waveform, the phase of which varies in accordance with engine load. The two waveforms have the same frequency. A function timing circuit responsive to both waveforms calculates engine speed, engine load and crank-shaft position and from these produces a trigger signal for each ignition spark. Further circuitry responsive to the trigger signals drives the ignition coil.

REFERENCES:
patent: 3626455 (1971-12-01), Toda
patent: 3703887 (1972-11-01), Panhard
patent: 3915131 (1975-10-01), Brungsberg
patent: 3923022 (1975-12-01), Scholl
patent: 3941103 (1976-03-01), Hartig
patent: 3969303 (1972-10-01), Hartig
patent: 4079709 (1978-03-01), Schuche
patent: 4181884 (1980-01-01), Shirasaki
patent: 4338903 (1982-07-01), Bolinger
patent: 4352345 (1982-10-01), Menako

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