Ignition timing control apparatus for internal combustion...

Details Ignition timing control apparatus for internal combustion... Ignition timing control apparatus for internal combustion...

2006-06-06

2006-06-06

Solis, Erick (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S431000, C123S295000

Reexamination Certificate

active

07055500

ABSTRACT:
For an internal combustion engine including an in-cylinder injector and an intake port injector, proper ignition timing setting means is provided for setting a proper ignition timing according to the fuel injection ratio between injection from the in-cylinder injector and injection from the intake port injector. When a change is made in the fuel injection ratio, the proper ignition timing setting means selects one of a proper ignition timing value before the change and a proper ignition timing value after the change that is on the retard side and sets the ignition timing at the selected proper ignition timing value in at least a predetermined period of time after the change.

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