| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device of an internal combustion engine capable of securely changing injection information immediately after that change in the device for controllably changing the injection information according to the abrupt change of the operating state of the engine. SOLUTION: An electronic control device (ECU) sets (timings t1, t2) the injection information including the injection timing of a fuel ("fully painted diamond-shaped symbol" in the figure) based on the operating state of the engine each time a crankshaft is rotated to a specified angle (450°BTDC) for each cylinder, and changes the injection information according to the abrupt change of the operating state of the engine at the timing t3 after setting the injection information (See "diamond-shaped symbol not fully painted" in the figure). In this change, as a treatment separate from the setting of the injection information, the device detects the established state of the execution conditions for a control changing the injection information each time the crankshaft is rotated by a specified small angle (30°CA) smaller than the rotation of the crankshaft to the specified angle (450°BTDC). Based on the detected results, the control device determines whether the injection information must be changed or not. COPYRIGHT: (C)2005,JPO&NCIPI
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