| 摘要 |
A VVT has a movable restriction member and a restriction slot. When the restriction member is in a projected position, the VVT is variable in a restricted range to which the restriction member can be rotatable within the restriction slot. When the restriction member is in a retracted position, the VVT is variable in a range wider than the restricted range. When a condition where the restriction member shall be projected is satisfied, if the variable range of the VVT reaches beyond the restricted range, the device determines that the restriction member is stuck at the retracted position. When a condition where the restriction member shall be retracted is satisfied, if the variable range of the VVT is restricted in the restricted range, the device determines that the restriction member is stuck at the projected position. |
