| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve drivability and emission in start of an internal combustion engine the compression ratio of which can be changed. Ž<P>SOLUTION: In a start control system for an internal combustion engine the compression ratio of which can be changed, an occurrence of knocking is avoided by decreasing a compression ratio during a period from the beginning of the start of the internal combustion engine until an engine speed exceeds a predetermined complete explosion determination value. Extension of a starting period and deterioration in emission are suppressed by increasing the compression ratio, when an increasing speed of the engine revolution during the period is lower than a predetermined lower limit value. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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