Method and apparatus for controlling an internal combustion engi

Details Method and apparatus for controlling an internal combustion engi Method and apparatus for controlling an internal combustion engi

1978-08-22

1981-03-24

Lall, P. S.

Internal-combustion engines

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

123493, F02P 502, F02B 502

Patent

active

042573637

ABSTRACT:
An ignition control device for changing the ignition timing of an internal combustion engine during and after the occurrence of engine braking, i.e., during a condition of increased speed and low load, as during coasting. The device includes a circuit which receives signals related to engine load and engine speed and determines therefrom the onset of engine braking. The device then retards the engine timing so as to reduce the amount of positive engine torque, whereafter the fuel supply may be entirely shut off. Upon establishment of normal operation or idling, the fuel supply is restored and the ignition timing is gradually returned to the normal setting.

REFERENCES:
patent: 3476094 (1969-11-01), Rucins et al.
patent: 3683869 (1972-08-01), Kamazuka et al.
patent: 3683877 (1972-08-01), Mennesson
patent: 3794003 (1974-02-01), Reddy
patent: 3935845 (1976-02-01), Aono et al.
patent: 3978832 (1976-09-01), Walker et al.
patent: 4051823 (1977-10-01), Mogi et al.
patent: 4068632 (1978-01-01), Kanaida et al.
patent: 4126107 (1978-11-01), Harada et al.

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