| 摘要 |
PROBLEM TO BE SOLVED: To increase the frequency of learning and prevent operability from being deteriorated by the learning in the learning of the reference position of a variable valve train. SOLUTION: The minimum lift position and the maximum lift position of the variable valve train capable of varying the lift amount of an intake valve are learned. In the learning, when the requirement for permission of learning is established, the tart of the lift amount is set to the minimum or maximum, and the train is forcibly driven to the minimum lift position or the maximum lift position. Also, it can be suppressed by forcibly driving the train to the minimum lift position or the maximum lift position to correct the target position of an electrically controlled throttle that an sucked air amount is varied and an engine torque is fluctuated. COPYRIGHT: (C)2006,JPO&NCIPI
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