| 摘要 |
PROBLEM TO BE SOLVED: To correctly inject respective fuel injection amounts of multi-injection set corresponding to an operation condition of an engine by correcting an injection amount and a variation part of an injection period characteristic by a variation of an internal pressure of a cylinder against the inner pressure of the cylinder near TDC of an engine. SOLUTION: The internal pressure of cylinder at the time of starting of pilot injection, pre-injection and main injection is calculated by a map or a calculation formula adapted by measuring an injection starting angle and an internal pressure characteristic of the cylinder at the time of starting of pilot injection, pre-injection and main injection. The pilot injection amount, the pre- injection amount and the main injection amount set corresponding to the operation condition of the engine can be correctly injected at the time of the pilot injection, the pre-injection and the main injection in which the fuel is injected in a wide range near TDC of the engine by correcting respective fuel injection amounts of multi-injection and injection period of the respective fuel injections of the multi-injection corresponding to a variation amount of the internal pressure of the cylinder when the fuel is actually injected. COPYRIGHT: (C)2003,JPO
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