| 摘要 |
PROBLEM TO BE SOLVED: To prevent vaporization of fuel during the engine stop period and surely preventing poor start caused by the same in an FFV engine capable of using alcohol fuel. SOLUTION: It is estimated according to predetermined conditions (step S102-104) whether fuel in a fuel supply passage is vaporized during the engine stop period at a time of engine stop, pressure of fuel in the fuel supply passage is raised (step S105) when vaporization of fuel is estimated. Possibility of vaporization of fuel during the stop period is estimated at a time of engine stop, not at a time of start, pressure of fuel in the fuel supply passage is raised if vaporization is estimated. Consequently, vaporization of fuel during the engine stop period is surely prevented and poor start at a time of next start can be surely prevented. COPYRIGHT: (C)2007,JPO&INPIT
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