| 摘要 |
PROBLEM TO BE SOLVED: To avoid an output shortage, by smoothly switching fuel, even when requiring predetermined high load operation when selecting CNG fuel. SOLUTION: This control device of a bi-fuel engine is injectably constituted by automatically selecting any one of the CNG fuel or gasoline fuel in response to an intention of a user or an operation condition. The CNG fuel is selected (YES in Step S10), and request output of present time is a predetermined high load boundary value or more to be switched to the gasoline fuel (YES in S20), and when operation is continued for a predetermined time or more by its request output (YES in S30), combustion is controlled by switching to the gasoline fuel (S40 and 50). The request output at its time is a predetermined re-switching boundary value or less to be re-switched to the CNG fuel (YES in S60), and when the CNG fuel is selected (YES in S70), the combustion is controlled by switching to the CNG fuel (S80 and 90). COPYRIGHT: (C)2007,JPO&INPIT
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