| 摘要 |
An apparatus for controlling the engine idling speed to a target value. The apparatus is arranged to calculate a target engine idling speed value according to engine operating conditions and a model engine speed based upon the calculated target engine idling speed value. The calculated target model engine speed is used to calculate a model engine output torque required to cause the actual engine speed to follow the calculated model engine speed. A difference of the sensed engine speed from the calculated model engine speed is calculated to correct the model engine output torque. The corrected model engine output torque is used, along with the calculated model engine speed, to calculate the amount of air flow through the auxiliary air passage.
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