Method and system for controlling the idle speed of an internal

Details Method and system for controlling the idle speed of an internal Method and system for controlling the idle speed of an internal

1981-11-13

1984-05-08

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

123418, F02P 504, F02M 712, F02D 1110

Patent

active

044468326

ABSTRACT:
The idle speed of an internal combustion engine is controlled in response to a variable ignition timing control signal from a microcomputer. The microcomputer derives this control signal as a function of the magnitude of engine speed variation which occurs during engine idle periods to cause the ignition timing to vary quickly in response to a transitory engine load variation. An auxiliary air delivery system may be advantageously incorporated in the idle speed control system to cooperate with the ignition timing control in response to the engine speed variation.

REFERENCES:
patent: 4291656 (1981-09-01), Muyagi et al.
patent: 4297978 (1981-11-01), Matsui
patent: 4338899 (1982-07-01), Geiger et al.
patent: 4344397 (1982-08-01), Geiger et al.
patent: 4344399 (1982-08-01), Matsumura et al.
patent: 4365599 (1982-12-01), Ikeura
patent: 4365601 (1982-12-01), Yamazoe et al.

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