Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1990-01-19
1991-01-01
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
F02M 5100
Patent
active
049811266
ABSTRACT:
A basic threshold value is calculated by averaging fluctuations of engine speed, and an acceleration threshold value which is higher than the basic threshold value is calculated. Surges existing in the fluctuation are compared with the basic threshold value and with the acceleration threshold value. The ignition timing of the engine is retarded by a predetermined initial retard angle when a first surge after beginning of acceleration of the engine is higher than the acceleration threshold value, and the ignition timing is retarded by retard angle which is smaller than the initial retard angle when each of second and subsequent surges is higher than the basic threshold value.
REFERENCES:
patent: 4469082 (1984-09-01), Nishitoba et al.
patent: 4502454 (1985-03-01), Hamai et al.
patent: 4884548 (1989-12-01), Sugawa
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Nelli Raymond A.
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