| 摘要 |
PROBLEM TO BE SOLVED: To prevent abnormal combustion from occurring in a cylinder to which a purge gas is incompletely sucked in an evaporated fuel processing device for feeding an evaporated fuel to each of cylinders during the starting of the internal combustion engine. SOLUTION: A crank angle sensor generating a cylinder discriminating signal when a #1 or #4 cylinder reaches its top dead center in intake stroke is installed in the evaporated fuel processing device. Based on the output of the crank angle sensor, a CCRNK indicating a crank angle is counted (Fig. (C)). After a cylinder discrimination is performed, ignition is performed in each of the cylinders in synchronism with the CCRNK, and a crank angle synchronous purge is performed for feeding an evaporated fuel to each of the cylinders (open arrow in Fig. (D)). The cylinder #2 capable of securing sufficient purge execution time in a period between the occurrence of the cylinder discriminating signal and the completion of the intake stroke is used as a crank angle synchronous purge start cylinder. COPYRIGHT: (C)2006,JPO&NCIPI
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