Control apparatus for an in-cylinder injection spark-ignition in

Details Control apparatus for an in-cylinder injection spark-ignition in Control apparatus for an in-cylinder injection spark-ignition in

1997-08-26

1999-11-02

Solis, Erick R.

Internal-combustion engines

Combustion chamber means having fuel injection only

Having a particular relationship between injection and...

12340647, F02P 5145, F02P 1700

Patent

active

059750472

ABSTRACT:
A control apparatus for an in-cylinder injection spark-ignition internal combustion engine, which includes a fuel injection valve for injecting a fuel directly into a combustion chamber and a spark plug for subjecting the fuel to spark ignition in the combustion chamber, and operates in an intake-stroke injection mode where the fuel is injected mainly in an intake stroke or a compression-stroke injection mode where the fuel is injected mainly in a compression stroke, comprises load correlation value calculation means for calculating a load correlation value of the internal combustion engine, ignition timing setting means for setting a reference ignition timing for the spark plug in accordance with the fuel injection mode and the load correlation value, and correction means for correcting the reference ignition timing in accordance with the operating state, the control apparatus further comprising correction limiting means for limiting the correction when the fuel injection mode is the compression-stroke injection mode.

REFERENCES:
patent: 5067459 (1991-11-01), Ma
patent: 5640939 (1997-06-01), Shimada et al.
patent: 5749334 (1998-05-01), Oda et al.
patent: 5778856 (1998-07-01), Okada et al.
patent: 5819701 (1998-10-01), Morikawa

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