| 摘要 |
There is provided a valve timing varying mechanism (VTC) to vary a valve timing. An estimated VTC conversion angle VTCNFS is calculated in accordance with a sensed VTC conversion angle VTCNOW (S15ˆ¼S19). At the time of conversion of the VTC conversion angle to the advance side or retard side, a fastest response value is calculated by conversion of the VTC conversion angle from the previous sensed value with a fastest response speed, and the sensed value (estimated value) is limited to or below the fastest response value when the current value of the sensed valve timing exceeds the fastest response value (S20, S21). |
