| 摘要 |
PROBLEM TO BE SOLVED: To prevent exertion of adverse influence on an operation state of an internal combustion engine even in a system for changing fuel pressure according to fuel supply to the internal combustion engine. SOLUTION: Electric power consumption can be restrained by changing the fuel pressure PF in a prescribed range by intermittently turning on and off a fuel pump (unillustrated) according to the fuel supply to the internal combustion engine 1. The final fuel injection quantity TAU is corrected on the basis of the fuel pressure PF and intake pressure PM at this time. In the internal combustion engine 1 composed of a single cylinder, a change in the fuel pressure PF is expressed in a relatively simple almost linear shape, and a change in the intake pressure PM is also expressed in a relatively simple curve. Thus, the final fuel injection quantity TAU can be accurately corrected on the basis of the fuel pressure PF and the intake pressure PM.
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