| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of accurately controlling an actual injection state. <P>SOLUTION: The fuel injection control device includes a parameter acquisition means 33a acquiring the parameter (for instance, injection end time R4) of an injection rate waveform showing the variation of an injection rate based on the detection value of a fuel pressure sensor, a learning means 33b storing as learning values the injection command signal (for instance, energization period Tq) outputted to a fuel injection valve and the parameter R4 corresponding to the signal, a memory 32 (storage means) stored with a model waveform M3 showing that the parameter R4 varies periodically with a variation of the injection command signal Tq, and an interpolation means 33c calculating the injection command signal Tq situated between the learning values and the value of the parameter R4 situated at the signal by interpolating the learning values using the model waveform M3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
