| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of estimating fuel injection timing by reducing a processing load as much as possible without additionally providing a sensor. SOLUTION: An injector 20 injects fuel discharged from a fuel injection pump 12 and accumulated by a common rail 14 into each cylinder of an internal combustion engine. An ECU 50 controls fuel injection from the injector 20 based on the engine operating condition estimated on the basis of input detecting signals such as a detecting signal of a pressure sensor 16 for detecting pressure of the common rail 14, a detecting signal of a G pulsar and a NE pulsar 72 detected by an electromagnetic pickup 74 and a detecting signal of other various sensors. The ECU 50 corrects fuel injection quantity and fuel injection timing based on the engine speed of each cylinder. COPYRIGHT: (C)2008,JPO&INPIT |
