| 摘要 |
PROBLEM TO BE SOLVED: To quickly provide a proper fuel injection amount when properties in fuel in a fuel tank change for example immediately after fuel refilling.SOLUTION: A fuel supply device includes: a fuel separation means for separating a raw fuel using either a normal fuel not containing oxygen-contained fuel or a mixed fuel in which the oxygen-contained fuel and the normal fuel are mixed into a higher octane fuel and a lower octane fuel. Moreover, the fuel supply device includes a control means for controlling a fuel injection amount based on an output value of an air-fuel ratio sensor obtained in the injection of the raw fuel, an output value of the air-fuel ratio sensor obtained in the injection of the lower octane fuel separated from the raw fuel, and an injection ratio between the higher octane fuel and the lower octane fuel. |
