Apparatus and a method for controlling the ignition timing of a

Details Apparatus and a method for controlling the ignition timing of a Apparatus and a method for controlling the ignition timing of a

1997-11-10

1999-06-08

Argenbright, Tony M.

Internal-combustion engines

Spark ignition timing control

Electronic control

12340655, F02P 515

Patent

active

059097230

ABSTRACT:
An apparatus for controlling an ignition timing of a cylinder-injection gasoline engine includes an electronic control unit (ECU) for controlling the operation of an ignition coil. The ECU advances the ignition timing in accordance with the throttle opening in consideration of a delay in increase of the wall temperature of a combustion chamber when the acceleration of a vehicle is detected by the change of the throttle opening. In order to prevent knocking of the engine attributable to the increase of the wall temperature, the ECU gradually decreases an advance angle for the ignition timing to 0 with the passage of control time. When the engine is reaccelerated during the advance angle correction, the ECU newly sets an advance angle for the ignition timing and a control time, corresponding to the increase of the wall temperature.

REFERENCES:
patent: 4424783 (1984-01-01), Kotwicki
patent: 4466408 (1984-08-01), Cheklich
patent: 4480620 (1984-11-01), Tange et al.
patent: 5150300 (1992-09-01), Danno et al.

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