| 摘要 |
In a diesel engine (1), a representative value of a difference of a target intake air amount and a real intake air amount is calculated when a first condition is satisfied (S266). Simultaneously, a parameter which affects the relationship between a flowrate of an exhaust gas recirculation valve (6) and the real intake air amount is stored as a first value (S434, S436). The parameter is sampled as a second value when a second condition is satisfied (S434, S436). By controlling the exhaust gas recirculation valve (6), when the second condition is satisfied, using the representative value corrected according to the difference between the second value and the first value (S13), an excess air factor of the diesel engine (1) is precisely controlled under various running conditions by using the unique representative value. <IMAGE> |
