| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection device and fuel injection system capable of controlling an injection state of a fuel injection valve in detail and with high precision. <P>SOLUTION: A fuel injection device includes an injector 20 (a fuel injection valve), a pressure sensor 20a which is arranged on a side close to an injection hole with respect to a common rail (a pressure-accumulation vessel) and detects fuel pressure, and an IC memory 26 (a storage means) which stores individual difference information for indicating an injection characteristic of the injector 20 obtained by an examination. The individual difference information stored in the IC memory 26 is taken as information of a fluctuation pattern of a portion subsequent to an end of the fuel injection of the fluctuation waveforms of detected pressure of the pressure sensor 20a produced by one fuel injection through the nozzle hole. <P>COPYRIGHT: (C)2009,JPO&INPIT |
