| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of accurate cooperative control of a variable valve mechanism and an exhaust flow adjustment mechanism to prevent increase in internal EGR due to delay and fixation in the variable valve mechanism, thereby achieving good combustion state. SOLUTION: Even when start conditions for exhaust restriction control is satisfied (YES in Step S12), if an actual overlap amount OL of an intake and exhaust valve is large (NO in Step S14), or the actual overlap amount OL delays with respect to a target overlap amount tgt OL which is on the decrease (NO in Step S16), the control device determines the overlap amount as excess state and restricts the exhaust restriction control (Step S20). COPYRIGHT: (C)2004,JPO
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