Internal-combustion engines – Spark ignition timing control – Electronic control
Reexamination Certificate
2006-06-06
2006-06-06
Dolinar, Andrew M. (Department: 3747)
Internal-combustion engines
Spark ignition timing control
Electronic control
C123S431000
Reexamination Certificate
active
07055501
ABSTRACT:
For an internal combustion engine including an in-cylinder injector and an intake port injector, when a request to change a fuel injection ratio to a requested fuel injection ratio is made and a difference between a proper ignition timing value corresponding to the fuel injection ratio before the change and a proper ignition timing value corresponding to the requested fuel injection ratio after the change exceeds a predetermined value, a magnitude of the change of the fuel injection ratio to the requested fuel injection ratio is limited and the ignition timing value is set to an ignition timing value corresponding to a fuel injection ratio changed by the limited magnitude of change.
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Dolinar Andrew M.
Hoang Johnny H.
Toyota Jidosha & Kabushiki Kaisha
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