| 摘要 |
An actuator control apparatus is provided which has: an actuator provided in an internal combustion engine at a position distant from combustion chambers to change an engine state amount; a sensor that detects the actual operation position of the actuator; a controller that controls the actuator to bring the actual operation position to a target operation position set based on the engine operation state; a diagnosis portion that diagnoses the actuator to be in an abnormal state when the deviation of the actual operation position from the target operation position has been larger than a reference amount for a reference time; and a setting portion that sets, upon the diagnosis by the diagnosis portion, the reference time such that the lower the engine coolant temperature, the longer the reference time, and the lower the ambient temperature, the longer the reference time corresponding to the engine coolant temperature.
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