| 摘要 |
The present invention determines whether or not an internal combustion engine is in an uncombusted state, and when the internal combustion engine is in an uncombusted state, determines whether or not the rotational frequency of the engine is greater than a predetermined rotational frequency (NEth). Also, when the condition, rotational frequency > predetermined rotational frequency (NEth), is found to be satisfied, the maximum in-cylinder pressure value (Pmax) during motoring is identified by an in-cylinder pressure sensor (34), the crank angle (&thetas; Pmax) corresponding to Pmax is detected by a crank angle sensor (42), and the crank angle is corrected in a manner so that &thetas; Pmax is at TDC. Also, the amount of crank angle correction is learned, and the relationship between the crank angle sensor (42) signal and the corresponding actual crank angle (measured value) is corrected. |
