| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of controlling throttle opening in response to a target engine intake airflow even in transient operation. SOLUTION: This control device of an internal combustion engine is provided with: a throttle valve 6; an intake airflow control means 24; an actual cylinder intake airflow calculation means 21; a target cylinder intake airflow calculation means 22 calculating a target cylinder intake volume Qct; and a target engine intake airflow calculation means 23 calculating a target engine intake volume Qat by phase lead compensation. The actual cylinder intake airflow calculation means 21 calculates a response delay model of an intake system from a volume efficiency equivalent value Kv calculated from a revolution speed Ne of an engine 1 and intake manifold pressure Pim, an intake pipe volume Vs, and a stroke volume Vc of a cylinder 2, and calculates an actual cylinder intake volume Qcr from an actual engine intake volume Qar from an airflow sensor 4, and the response delay model. The intake airflow control means 24 controls throttle opening TP by the target engine intake volume Qat. COPYRIGHT: (C)2008,JPO&INPIT
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