| 摘要 |
There is provided a control apparatus for a cylinder injection internal combustion engine 107 which suppresses fuel pulsation caused by cam phase deviation and thereby prevents internal combustion engine exhaust deterioration, so that the reliability of a high-pressure fuel system using a high-pressure fuel pump 111 is improved. The control apparatus for a cylinder injection internal combustion engine 107 includes a high-pressure fuel pump 111 that raises the pressure of fuel and discharges the fuel to a fuel rail 205, and a fuel pressure sensor 121 that detects a pressure of fuel stored in the fuel rail 205. The control apparatus controls the high-pressure fuel pump 111 based on the fuel pressure detected by the fuel pressure sensor 121. The control apparatus further includes a cam phase estimation means 1201 for estimating a phase of a cam shaft 129, 130 of the internal combustion engine 107 which drives the high-pressure fuel pump 111, and based on the phase estimation value calculated by the cam phase estimation means 1201, corrects the amount of controlling the high-pressure fuel pump 111.
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