Engine ignition timing control apparatus

Details Engine ignition timing control apparatus Engine ignition timing control apparatus

1985-02-22

1987-01-13

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

F02P 515

Patent

active

046356045

ABSTRACT:
An ignition timing control apparatus for an internal combustion engine in which the reference ignition timing of the engine is changed over or displaced according to the detected result of the occurrence of knocks owing to the kind of fuel being used for the engine. In changing over the ignition timing characteristic, the change-over magnitude between the reference ignition timings for premium and regular gasolines is determined according to an operating condition of the engine whereby a knock control is made based on the determined change-over magnitude. In displacing the ignition timing when a mixture of premium and regular gasolines is being used, the displacement magnitude for either of the reference ignition timings for premium and regular gasolines is determined according to an operating condition of the engine whereby a knock control is made based on the determined displacement magnitude.

REFERENCES:
patent: 3718126 (1973-02-01), Oishi et al.
patent: 3822583 (1974-07-01), Keller et al.
patent: 4344400 (1982-08-01), Asano
patent: 4351281 (1982-09-01), Geiger et al.
patent: 4440129 (1984-04-01), Iwata
patent: 4444172 (1984-04-01), Sellmaier et al.
patent: 4448163 (1984-05-01), Yoshida
patent: 4463565 (1984-08-01), Rydquist et al.
patent: 4509331 (1985-04-01), Hirabayashi

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